A proximity sensor uses an electromagnetic field to measure changes in the distance to an object. As a gear moves past the sensor, it measures a variation in distance; close (tooth) and far (notch). The rotation speed can be determined based on the time between these events.
The experimental setup helps to study the angular speed of a rotating wheel using Magnetic pick up Proximity sensor. Also verified by Contact type Digital Tachometer and Non – contact type Digital Tachometer.
The experimental setup consists of the following specifications :
- Teeth wheel fitted on a motor shaft.
- Motor speed controller.
- Magnetic pick up proximity sensor.
- Power supply.
- Digital Counter.
- Contact Type Digital Tachometer.
- Non-Contact Type Digital Tachometer.