Differential photoelectric sensor

A sensor that uses two or more photodetectors and uses the difference in light input response as the output signal.

It can be used to detect the displacement of the beam point. When the beam hits the junction of the two detectors, since the displacement output changes in opposite phases, taking their difference can obtain a signal inversely proportional to the displacement.

Related News

Depth Sensor
September 14, 2024Depth SensorA sensor used to detect thedepth of seas and lakes. Ultrasonic waves are emitted from the ship to thebottom of the water , and the water depth is calculated by the time required toreceive ...view
Current Sensor
September 2, 2024Current SensorSensors that detect AC andDC currents. For example, a toroidal core is used to wind the primary andsecondary coils around the core. The primary current can be detected by thedetected sec...view
Coin sensor
August 27, 2024Coin sensorSensors used in vendingmachines to identify coin types. They identify coins based on their diameter,weight, whether they have a hole in the center, and patterns. Sensors thatanalyze the com...view
Fire alarm sensor
October 18, 2024Fire alarm sensorA device that converts a physical quantitythat characterizes a fire alarm condition into another physical quantity.According to the nature of the working effect , it can usually be di...view
Image Processing Sensor
November 4, 2024Image Processing SensorThe process of transforming images, extracting usefulinformation from them, and identifying and displaying them is called imageinformation processing. The sensor used in image p...view
Drift Measuring Instrument
March 17, 2025Drift Measuring InstrumentAn instrument used tomeasure the drift of a vessel or drifting object on the water relative to thegeographical location of a selected reference point due to wind direction,cu...view

Differential photoelectric sensor

Depth Sensor

Current Sensor

Coin sensor

Fire alarm sensor

Image Processing Sensor

Drift Measuring Instrument