Lesson plan
Position sensor
A position sensor is a sensor that detects an object's position. A position sensor may indicate the absolute position of the object (its location) or its relative position (displacement) in terms of linear travel, rotational angle or three-dimensional space. Common types of position sensors include the following: * Capacitive displacement sensor * Eddy-current sensor * Hall-effect sensor * Inductive sensor * Laser Doppler vibrometer (optical) * Linear variable differential transformer (LVDT) * Photodiode array * Piezo-electric transducer * Position encoders: ** Absolute encoder ** Incremental encoder ** Linear encoder ** Rotary encoder * Potentiometer * Proximity sensor (optical) * String potentiometer (also known as a string encoder or cable position transducer) * Ultrasonic sensor
Article summary
A position sensor is a sensor that detects an object's position. A position sensor may indicate the absolute position of the object (its location) or its relative position (displacement) in terms of linear travel, rotational angle or three-dimensional space. Common types of position sensors include the following: * Capacitive displacement sensor * Eddy-current sensor * Hall-effect sensor * Inductive sensor * Laser Doppler vibrometer (optical) * Linear variable differential transformer (LVDT) * Photodiode array * Piezo-electric transducer * Position encoders: ** Absolute encoder ** Incremental encoder ** Linear encoder ** Rotary encoder * Potentiometer * Proximity sensor (optical) * String potentiometer (also known as a string encoder or cable position transducer) * Ultrasonic sensor
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Discussion questions
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