Question

What type of linear position sensors exist, be sure to identify at least two different mechanisms that can be used to sense linear position besides a linear encoder. A catalog defining products offered by Balluff has been posted separately. When relatively small displacements are to be measured, including displacements of a mass undergoing accelerations used to form an accelerator, the measurement of small displacements can take on a different emphasis.

Answer 1

The linear ppositions sensors available nowadays are :

• Linear Variable Differential transformer- it measures linear displacement using a counterpart called Rotary variable Differential transformer. They have great life and donot use any electronics.
• Ultrasonic position sensor - These are also called ultrasonic transducers which can transmit receive and transceive signals which help determination of position.
• Proximity sensor - Used for detection of nearby objects by an electromagnetic radiation
• Piezoelectric transducer
• hall effect sensor
• potentiometer