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

Magnetic sensor
November 11, 2024Magnetic sensorThere are many kinds of magnetic sensors made by usingvarious physical phenomena. The magnetic needle is an early magnetic sensorused by the compass to detect the direction. In recent y...view
Depth Sounder
September 15, 2024Depth SounderAn instrument used tomeasure the depth of the seabed. Its working principle is that the transmittertransmits a sound pulse to the seabed, and the sound pulse is reflected by theseabed and...view
Digital displacement sensor
March 12, 2025Digital displacement sensorA sensor that directlyconverts linear displacement or angular displacement into a digital electricalsignal output corresponding to it.It has advantages of highaccuracy, larg...view
Integrated Sensors
November 1, 2024IntegratedSensorsA sensor that usesmicroelectronic technology to manufacture sensitive components together withsignal processing electronic circuits on a semiconductor chip.view
Gauge Pressure Sensor
February 5, 2025Gauge Pressure SensorA pressure sensor thatdetects gauge pressure. The surface to be detected of the diaphragm ordiaphragm box of the pressure-bearing element is open to atmospheric pressure,and the d...view
Hydrophone
October 7, 2024HydrophoneAn acoustic-electric sensor that responds tounderwater sound waves and emits electric waves that are actually equivalent tosound waves. It is mainly used to detect the approach of submarines...view

Differential photoelectric sensor

Magnetic sensor

Depth Sounder

Digital displacement sensor

Integrated Sensors

Gauge Pressure Sensor

Hydrophone