Angel sensor

 Understanding Angle Sensors: Types, Applications, and Benefits

In today's tech-driven world, angle sensors play a pivotal role in a wide range of applications. From cars to industrial robots and even gaming controllers, angle sensors provide precise measurements of angular position and motion. This blog dives into what angle sensors are, the main types, how they work, and where they’re most commonly used.

What is an Angle Sensor?

An angle sensor, also known as a rotary position sensor, is a device that measures the angular position of an object in relation to a fixed reference. These sensors detect how much and in which direction something has rotated or tilted, converting this information into an electrical signal for processing.

These sensors are essential in applications that require precise positioning and feedback control, providing vital data in systems that range from automotive stability controls to industrial machinery and robotics.

How Do Angle Sensors Work?

Angle sensors work by detecting changes in a rotating element’s position and translating these changes into readable signals. They generally consist of a rotating component, a sensor element, and a signal processor. The sensor element detects the movement of the rotating part and sends this information to the signal processing unit, which translates it into an electrical output. The output can be analog or digital, depending on the sensor type and application.

Types of Angle Sensors

1. Potentiometric Angle Sensors

How They Work: These sensors use a mechanical wiper moving along a resistive track to detect rotation. The wiper’s position changes the resistance, allowing the sensor to measure the angle based on the resistance level.

Applications: Used in automotive applications, such as throttle position sensing, due to their affordability and simplicity. However, they are susceptible to wear over time.

2. Hall Effect Sensors

How They Work: These sensors operate using a magnetic field. A magnetic element attached to the rotating object influences the magnetic field, which is detected by the Hall sensor.

Applications: Common in automotive, robotics, and industrial applications because of their durability and ability to work in extreme environments.

3. Rotary Encoders

How They Work: Rotary encoders track rotation by counting increments, either with a digital or optical system. There are two types:

Absolute Encoders: Provide a unique code for each angular position.

Incremental Encoders: Track movement but do not provide absolute position.

Applications: Frequently used in precision applications such as robotics, CNC machines, and factory automation due to their high accuracy.

4. Capacitive Angle Sensors

How They Work: These sensors detect angular position by measuring the capacitance between rotating and fixed plates. The capacitance changes as the angle of rotation changes.

Applications: Often found in precision instruments, scientific applications, and small electronics, such as mobile devices.

5. Optical Angle Sensors

How They Work: Optical sensors use light patterns, usually with a rotating disk that interrupts light beams. As the object rotates, the sensor detects light interruptions, translating them into angular position data.

Applications: Ideal for applications requiring high precision, like industrial automation and robotics.

Key Applications of Angle Sensors

1. Automotive Industry

Use Cases: Steering angle sensors, throttle position sensors, and suspension systems all rely on angle sensors for accurate movement and position tracking. These sensors play a critical role in ensuring vehicle stability, safety, and performance.

2. Industrial Automation

Use Cases: Angle sensors help monitor and control machinery parts, including motors, valves, and robotic arms. By providing precise feedback, they support automation and quality control in manufacturing, improving both efficiency and safety.

3. Aerospace and Defense

Use Cases: Angle sensors measure control surfaces like flaps and ailerons in aircraft. High accuracy is essential in this field, as it ensures flight stability and safety.

4. Consumer Electronics

Use Cases: In gaming controllers, smartphones, and tablets, angle sensors detect tilt, rotation, and position. They improve user experience by enabling intuitive motion-based controls.

5. Medical Equipment

Use Cases: Angle sensors are used in diagnostic equipment, such as X-ray machines, to control angles for accurate imaging. They also help in robotic surgical tools, ensuring precise movements.

Choosing the Right Angle Sensor

Selecting the best angle sensor for a specific application depends on several factors:

1. Precision Needs: Applications that require high accuracy, like aerospace and robotics, may need optical or rotary encoders.

2. Environmental Conditions: For harsh environments, such as automotive engines, Hall effect sensors are ideal due to their resilience.

3. Size and Range: Smaller devices might require compact sensors, like capacitive or Hall effect sensors.

4. Budget Constraints: Potentiometric sensors are cost-effective but may wear out over time. Rotary encoders are more accurate but are also more expensive.

5. Response Time: Applications that require quick feedback, like automotive safety systems, need sensors with rapid response times.

The Future of Angle Sensors

As technology advances, angle sensors are becoming smaller, more accurate, and more versatile. Emerging sensor technologies, like MEMS (Micro-Electro-Mechanical Systems) and wireless angle sensors, are expanding potential applications, especially with the growth of IoT and automation.

Final Thoughts

Angle sensors are integral to modern technology, providing accurate and reliable data across industries. From keeping vehicles stable on the road to enabling precise robotic movements, these sensors enhance both functionality and safety. As demand grows for automation and smarter devices, angle sensors will continue to be vital components in a wide variety of applications.

Proximity sensor

 Understanding Proximity Sensors

Proximity sensors are essential components in modern technology, finding applications in a wide range of industries and everyday devices. They play a critical role in detecting the presence, movement, or absence of objects without any direct physical contact. This blog provides a detailed understanding of proximity sensors, their types, working principles, applications, and much more.

What is a Proximity Sensor?

A proximity sensor is a type of sensor that detects the presence or absence of an object within a specific range without any physical contact. The detection range of these sensors is typically limited and varies depending on the type and application. Proximity sensors are widely used in automation, smartphones, automotive systems, robotics, and other fields to enable or disable specific functions based on the presence or absence of nearby objects.

How Does a Proximity Sensor Work?

Proximity sensors detect objects by emitting electromagnetic fields or beams of radiation (like infrared or ultrasonic waves) and analyzing any changes in these signals. When an object enters the detection range, the sensor detects changes in the signal properties, such as intensity, wavelength, or reflection, and generates an output signal accordingly.

Types of Proximity Sensors

There are several types of proximity sensors, each using different principles and suitable for specific applications. The most common types include:

1. Inductive Proximity Sensors

Working Principle: Inductive proximity sensors generate an electromagnetic field using a coil and detect changes in this field caused by metal objects.

Best For: Detecting metallic objects within a short range.

Applications: Manufacturing equipment, automotive systems, and assembly lines.

2. Capacitive Proximity Sensors

Working Principle: These sensors measure changes in capacitance caused by an object’s dielectric constant when it comes close to the sensor.

Best For: Detecting both metallic and non-metallic objects, including plastics, wood, and glass.

Applications: Level detection in containers, packaging, and material handling.

to ensure optimal performance for the intended application:

1. Detection Range: The maximum distance at which the sensor can detect an object.

2. Response Time: How quickly the sensor responds to the presence or absence of an object.

3. Material Compatibility: Different sensors work with specific materials; for example, inductive sensors work with metal, while capacitive sensors work with various materials.

4. Environment: Factors like temperature, humidity, and potential exposure to dust, water, or chemicals may affect sensor choice.

5. Size and Mounting Options: The sensor’s physical size and mounting options should align with the design and space constraints of the device or application.

Advantages and Limitations of Proximity Sensors

Advantages:

Non-contact operation: Reduces wear and tear, ensuring longer sensor life.

High durability and reliability: Suitable for harsh environments.

Precision: Provides accurate readings without interference from nearby objects.

Limitations:

Limited range: Typically suitable for close-range detection.

Material-specific operation: Some types only detect certain materials, which can limit versatility.

Environmental sensitivity: Extreme environmental conditions may affect performance.

Applications of Proximity Sensors

Proximity sensors are versatile and used in various applications, from everyday devices to industrial systems:

1. Smartphones: Used to detect when the phone is near the face, which turns off the display during calls to save power and prevent accidental touches.

2. Automotive: In parking assistance, blind-spot detection, and collision avoidance systems.

3. Manufacturing: For object detection, counting, position sensing, and automation in assembly lines.

4. Security Systems: For monitoring doors, windows, and restricted areas.

5. Robotics: For object avoidance, gripper positioning, and environmental mapping.

Future of Proximity Sensor Technology

As technology advances, proximity sensors are becoming more precise, smaller, and energy-efficient. Emerging trends in proximity sensors include:

Integration with IoT (Internet of Things): Enabling real-time data collection and remote monitoring.

Miniaturization: Making sensors small enough to be embedded in wearables and compact devices.

Enhanced Accuracy and Range: Improvements in sensor technology are increasing detection accuracy and extending range.

AI-Powered Proximity Sensing: Artificial intelligence algorithms are enhancing sensors' capability to differentiate between objects and learn from repeated interactions.

Conclusion

Proximity sensors are indispensable in modern technology, enabling contactless detection, automation, and safety. By understanding the various types, working principles, applications, and factors to consider, we can better appreciate their role and future potential. Whether in a smartphone or a factory robot, proximity sensors are transforming how machines interact with their environment and how we interact with machines.

altornator

A DC alternator, also known as a DC generator, is a device that converts mechanical energy into direct current (DC) electrical energy. It operates on the principle of electromagnetic induction, similar to an AC generator or alternator.

The main components of a DC alternator include a rotor (field coil or permanent magnet), a stator (armature coil), and a commutator. When the rotor is rotated, either by an external power source or by an engine, the magnetic field generated by the rotor induces a voltage in the armature coil of the stator. The commutator, which is a segmented cylindrical structure connected to the armature coil, ensures that the generated voltage is converted into DC by changing the direction of the current flow at specific intervals.

Unlike an AC alternator that produces alternating current, a DC alternator generates a steady flow of direct current. This makes it suitable for applications that require DC power, such as automotive electrical systems, battery charging, and certain industrial applications.

DC alternators have been widely used in older vehicles before the advent of modern alternators that produce alternating current and then convert it to DC using rectifiers. However, they are still used in some specific applications where direct current is required.

1. Construction and Working Principle:

 A DC alternator consists of several key components:

 Rotor.  

 The rotor is the rotating part of the alternator. It can be either a field coil or a permanent magnet. The rotor's magnetic field induces a voltage in the stator windings.

   Stator.

 The stator is the stationary part of the alternator and contains the armature windings. These windings are connected to the electrical load and generate the output current when the rotor induces a voltage in them.

  Commutator 

The commutator is a cylindrical structure mounted on the rotor shaft. It consists of a series of copper segments insulated from each other. The commutator plays a crucial role in converting the induced alternating voltage in the armature windings into direct current. It does this by reversing the direction of current flow in the armature windings at precise intervals.

   Brushes 

The brushes are stationary carbon or graphite contacts that press against the commutator. They allow the current to flow from the commutator to external electrical circuits.

2. Output Characteristics: 

The output voltage and current of a DC alternator depend on various factors, including the speed of rotation, the strength of the magnetic field, and the number of turns in the armature windings. The output voltage can be controlled by adjusting the field current or using voltage regulation mechanisms.

 3. Voltage Regulation: 

Voltage regulation in DC alternators is typically achieved through various methods:

   - Field Current Control:

 By varying the current flowing through the field winding, the strength of the magnetic field can be adjusted, thereby regulating the output voltage.

   - Voltage Regulators:

 Electronic voltage regulators can be employed to maintain a constant output voltage. These regulators monitor the alternator's output and adjust the field current accordingly.

4. Applications:

 While DC alternators are less common in mainstream applications, they still find use in specific areas:

   - Renewable Energy Systems: 

DC alternators are employed in small-scale renewable energy systems, such as wind turbines and small hydroelectric generators, to produce DC power for battery charging or direct use.

   - Emergency Power Systems: 

DC alternators can be used in backup power systems, providing DC power during power outages to critical loads, such as emergency lighting or communication equipment.

   - Experimental and Educational Use: 

DC alternators are often used in educational settings to demonstrate the principles of electrical generation and conversion.

It's important to note that in many applications, AC alternators or rectifiers are used to convert AC power into DC, as AC systems are more prevalent and efficient for long-distance power transmission and distribution.

Voltage regulators in DC alternators play a crucial role in maintaining a stable output voltage despite variations in the speed of rotation, load conditions, and other factors. They ensure that the voltage supplied by the alternator remains within a specified range to meet the requirements of the connected electrical loads. Here's an overview of how voltage regulators in DC . 

alternators work:

1. Feedback Control System: 

Voltage regulators in DC alternators typically use a feedback control system to monitor the alternator's output voltage and make necessary adjustments to the field current. The control system compares the actual output voltage with a desired reference voltage and generates a control signal based on the difference (error signal) between the two.

2. Voltage sensing 

 The voltage regulator contains a sensing circuit that measures the output voltage of the alternator. This can be done using dedicated voltage sensing wires connected to the output terminals or by tapping into the voltage through the brushes and commutator.

3. Error Amplification: 

The error signal, which represents the difference between the desired reference voltage and the measured output voltage, is amplified by an error amplifier circuit within the voltage regulator. This amplification ensures that the control signal generated by the regulator is of sufficient strength to drive the necessary adjustments.

4. Field Current Adjustment: 

The control signal from the error amplifier is used to adjust the field current in the alternator. The field current determines the strength of the magnetic field produced by the rotor, which, in turn, influences the output voltage.

   - If the output voltage is below the desired reference voltage, the voltage regulator increases the field current. This strengthens the magnetic field, leading to a higher induced voltage in the armature windings and an increase in the output voltage.

   - If the output voltage exceeds the desired reference voltage, the voltage regulator decreases the field current. This weakens the magnetic field, resulting in a lower induced voltage and a reduction in the output voltage.

5. Control Method: Voltage regulators in DC alternators can employ different control methods to adjust the field current. Some common control methods include:

   - Rheostatic Control: This method uses a variable resistor (rheostat) in series with the field winding to adjust the field current manually. The operator can change the resistance, thereby modifying the current flow and regulating the output voltage.

   - Solid-State Regulation: Modern DC alternators often use solid-state electronic voltage regulators. These regulators utilize electronic components such as transistors, operational amplifiers, and feedback control circuits to continuously monitor and adjust the field current based on the sensed output voltage. They provide more precise and rapid regulation compared to rheostatic control.

6. Stability and Response Time: Voltage regulators aim to maintain a stable output voltage despite varying load conditions. They are designed to respond quickly to changes in the load and adjust the field current promptly to minimize voltage fluctuations. The stability and response time of the voltage regulator are important factors in ensuring a reliable power supply.

By continuously monitoring the output voltage and dynamically adjusting the field current, voltage regulators in DC alternators help maintain a consistent voltage level, ensuring proper operation of connected devices and protecting them from voltage-related issues.

1. Types of DC Alternators: 

DC alternators can be classified into two main types based on the field excitation method:

   a. Self-Excited DC Alternators: 

In this type, the field winding is connected in series with the armature winding. Self-excited alternators can further be divided into two subtypes:

      - Series-Wound Alternators:

The field winding is connected in series with the armature, resulting in high current but low voltage output. These alternators are primarily used in applications requiring high starting torque, such as electric forklifts.

      - Shunt-Wound Alternators: 

The field winding is connected in parallel (shunt) with the armature, resulting in a more stable voltage output. Shunt-wound alternators are commonly used in automotive applications.

   b. Separately-Excited DC Alternators: 

In this type, the field winding is supplied with a separate source of direct current, independent of the armature current. This allows for better control over the output voltage and current characteristics.

2. Voltage Regulation: 

DC alternators typically employ voltage regulation mechanisms to maintain a stable output voltage. This is particularly important to ensure consistent power supply to connected electrical loads. Voltage regulation can be achieved through various methods, such as adjusting the field current, using voltage regulators, or employing feedback control systems.

3. Efficiency and Advantages: 

DC alternators can achieve relatively high efficiency, especially when compared to other types of DC power sources like DC generators. They can provide a stable and reliable source of direct current, making them suitable for applications where AC-to-DC conversion is not required. Additionally, their simplicity and robustness make them suitable for use in rugged environments.

4. Application Examples: 

While DC alternators are less common in modern vehicles due to the widespread use of AC alternators, they still find application in specialized areas. Some examples include:

   - Off-grid power systems: 

DC alternators can be used in standalone power systems, such as remote cabins or RVs, to charge batteries and provide DC power for lighting, appliances, and other devices.

   - Marine applications: 

DC alternators are often used in boats and marine vessels to charge onboard batteries and power various DC systems.

   - Industrial applications: 

DC alternators find use in specific industrial applications where direct current is required, such as certain types of motor drives, electroplating operations, and electrolysis processes.

It's worth noting that with the advancement of power electronics and the increasing prevalence of AC-based systems, the use of DC alternators has become more limited in many mainstream applications.

knock sensor

“Knocking” occurs when the air-fuel mixture self-ignites prematurely. Sustained knocking causes damage primarily to the cylinder head gasket and cylinder head. The knock sensor identifies the high-frequency engine vibrations characteristic of knocking and transmits a signal to the ECU. The aim is to obtain the maximum energy yield by starting ignition as early as possible. Engines with a knock sensor can reduce fuel consumption and increase torque.

What is knock sensor?

The knock sensor monitors the combustion process in the engine. Its signal helps the engine control to prevent knocking combustion and therefore protect the motor/engine control. On this page we will provide you with various information, including how a defective knock sensor becomes noticeable, the causes that may lead to its failure, and how it can be tested in the workshop.

Important safety note The following technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their work. The information provided on this website is intended for use by suitably qualified personnel only.

The knock sensor is located on the outside of the engine block. It is intended to record knocking noise in all engine operating states in order to prevent engine damage.

 Car knock sensor function

The knock sensor "listens out for" the structure-borne vibrations from the engine block and converts these into electrical voltage signals. The signals are filtered and evaluated in the control unit. The knocking signal is assigned to respective cylinder. If knocking occurs, the ignition signal for the respective cylinder is adjusted in the "late" direction until knocking combustion no longer occurs.

Wheel speed sensor

A wheel speed sensor (WSS) or vehicle speed sensor (VSS) is a type of tachometer. It is a sender device used for reading the speed of a vehicle's wheel rotation. It usually consists of a toothed ring and pickup.

Purpose

The wheel speed sensor was initially used to replace the mechanical linkage from the wheels to the speedometer, eliminating cable breakage and simplifying the gauge construction by eliminating moving parts. These sensors also produce data that allows automated driving aids like ABS to function.

Construction

The most common wheel speed sensor system consists of a ferromagnetic toothed reluctor ring (tone wheel) and a sensor (which can be passive or active).

The tone wheel is typically made of steel and may be an open-air design, or sealed (as in the case of unitized bearing assemblies). The number of teeth is chosen as a trade-off between low-speed sensing/accuracy and high-speed sensing/cost. Greater numbers of teeth will require more machining operations and (in the case of passive sensors) produce a higher frequency output signal which may not be as easily interpreted at the receiving end, but give a better resolution and higher signal update rate. In more advanced systems, the teeth can be asymmetrically shaped to allow the sensor to distinguish between forward and reverse rotation of the wheel.

A passive sensor typically consists of a ferromagnetic rod which is oriented to project radially from the tone wheel with a permanent magnet at the opposite end. The rod is wound with fine wire which experiences an induced alternating voltage as the tone wheel rotates, as the teeth interfere with the magnetic field. Passive sensors output a sinusoidal signal which grows in magnitude and frequency with wheel speed.

A variation of the passive sensor does not have a magnet b

acking it, but rather a tone wheel which consists of alternating magnetic poles produce the alternating voltage. The output of this sensor tends to resemble a square wave, rather than a sinusoid, but still increases in magnitude as wheels speed increases.

An active sensor is a passive sensor with signal conditioning circuitry built into the device. This signal conditioning may be amplifying the signal's magnitude; changing the signal's form to PWM, square wave, or others; or encoding the value into a communication protocol before transmission.

camshaft position sensor

 The camshaft sensor enables the engine control to determine the exact position of the crankshaft drive. This information is required to calculate the ignition point and injection point, among other things. On this page, you can find out how a fault on the camshaft sensor can manifest itself, and which steps should be taken during troubleshooting.

1. CAMSHAFT SENSOR FUNCTION: 

FUNCTIONAL      PRINCIPLE

The task of the camshaft sensor is to work with the crankshaft sensor to define the exact position of the crankshaft drive. Through the combination of both sensor signals, the engine control unit knows when the first cylinder is in the top dead point.

 This information is needed for three purposes:

(1)For the start of injection during sequential injection.

(2)For the actuation signal of the solenoid valve for the pump-nozzle injection system.

(3)For cylinder-selective knocking control.

 The camshaft sensor works according to the Hall principle. It scans a ring gear on the camshaft. The rotation of the ring gear changes the Hall voltage of the Hall IC in the sensor head. This change in voltage is transmitted to the control unit and evaluated there in order to establish the required data.

2.SYMPTOMS OF A FAULTY CAMSHAFT POSITION SENSOR: SYMPTOMS

A faulty camshaft sensor can cause the following symptoms:

(1)Starting difficulties

(2)Engine indicator lamp comes on

(3)Fault code is stored

(4)Control unit enters an emergency program

3. CAMSHAFT POSITION SENSOR FAULTY: CAUSE OF FAILURE

Reasons for failure of the camshaft sensor can be:

(1)Mechanical damage

(2)Break in the encoder wheel

(3)Internal short circuits

(4)Interruption in connection to the control unit

4. CHECKING THE CAMSHAFT POSITION SENSOR: TROUBLESHOOTING

TROUBLESHOOTING:

Check sensor for damage ✓

Read out the fault memory ✓

Check the electrical connections of the sensor wiring, the connector, and the sensor for correct connection, breaks, and corrosion.

1. Checking the connection line

Check the connection line from the control unit to the sensor using the ohmmeter. Remove the connector from the control unit and remove the sensor, check the individual cables for continuity. A circuit diagram is required for the pin assignment. Reference value: approx. 0 Ohm.

2. Checking the connection lines for short circuit to frame

Check the connection lines for short circuit to frame. Measurement between sensor plug and vehicle ground, control unit plug removed. Reference value: >30 MOhm

3. Checking the supply voltage

Check the supply voltage from the control unit to the sensor. Insert the control unit plug, switch the ignition on. Reference value: approx. 5 V (note manufacturer's specifications).

4.  Checking the signal voltage

Check the signal voltage. Connect the measuring cable from the oscilloscope and start the engine. A square wave signal must be displayed on the oscilloscope.

Mass airflow sensors

A growing focus on reducing CO2 emissions means that mass airflow sensors are becoming increasingly important in ensuring the optimum air fuel ratio.

Mass airflow sensors are positioned directly after the air filter in the intake manifold and supply information on temperature, humidity and intake air volume. Despite their highly compact construction they feature precision technology to capture information, which – together with other engine data – enables optimum engine management.

This data includes:

Intake air temperature

Intake air humidity

Intake air volume

In gasoline engines, mass airflow measurement is used in conjunction with other sensor readings to regulate the supply of fuel to the engine.

In diesel engines, mass airflow sensors are used to regulate the exhaust gas recirculation rate and calculate the maximum injection quantity.

Our mass airflow sensors are exceptionally reliable and highly capable of withstanding environmental factors. Their dynamic measurement ability makes an important contribution to reducing vehicle emissions.

Zoomlion Qy 50v Load chart free pdf download

A Chinese construction machinery manufacturer, having taken on the mission of contributing to our motherland through industry and through the great ambition of "broadening our vision by aiming high" for more than fifty years, we have taken one firm step after another on our way towards allowing "Made in China" to challenge the world standard. With steps restlessly marching forward and with a long, winding path covered by single individual strides for over half a century, each and every footprint made, burdened under heavy loads, demonstrates nothing but the strong demeanor and ambition that a climber shows while looking down upon everything from mountain peak. We have experienced innumerable glorious moments over the past fifty years, such as: showing our strength in the centennial Three Gorges Project, being highly praised for building the Antarctic Scientific Exploration Bases, challenging the extreme construction conditions on the Qinghai-Tibet Plateau, rushing to Wenchuan for earthquake disaster relief, participating in the Beijing Olympics construction projects, and having our products highlighted at China's 60th Anniversary gala event - Zoomlion Cranes possess an unrivalled, legendary history. Looking back into the past only serves for looking forward into the future - 50 years, which for Zoomlion, merely represents a new starting point from which to ascend the next peak!

https://acrobat.adobe.com/link/review?uri=urn:aaid:scds:US:b4e247b7-046a-36a2-9bfb-9fc554c4d738

Potentiometer

It is an electronic device which is operate on low voltage. It has three resistor terminal with sliding & rotating contact form that voltage regulate by resistor. This device used for measurement purpose in programming card & display.

Use of potentiometer

Potentiometers are rarely used to directly control significant amounts of power. Instead they are used to adjust the level of analog signals and as control inputs for electronic circuits. For example, a light dimmer uses a potentiometer to control the switching of a TRIAC and so indirectly to control the brightness of lamps.

Preset potentiometers are widely used throughout electronics wherever adjustments must be made during manufacturing or servicing.

User-actuated potentiometers are widely used as user controls, and may control a very wide variety of equipment functions. However they remain in many applications, such as volume controls and as position sensors. 

Wiring diagram of potentiometer

Haji Ali latest video

Annemometer

Annemometer is also known as wind speed meter. It is a measuring device.  It measure wind speed and it's direction.

The term is derived from the Greek word anemos, which means wind, and is used to describe any wind speed instrument used in meteorology. The first known description of an anemometer was given by Leon Battista Alberti in 1450.

Connection

For connection we need a wind speed sensor & device for reading signal of sensor.

First of we need a DC supply for activate sensor and device. Above picture it clear that wiring diagram.

When a DC power supply connected with sensor and it blade run then in output we get signal. That signal connected in device. And device show result. Wind speed measure in m/s, kph, mph.

Application

Mostly wind speed meter used in industrial areas. And also it use in home.