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

Capacitive Displacement Sensor
July 31, 2024Capacitive Displacement SensorA displacement sensor inwhich the capacitance between two electrode plates varies with the distancebetween the plates or the area of overlap between the plates. Sensors t...view
Moisture Sensor
February 28, 2025Moisture SensorA sensor that convertssensed moisture into a usable output signal.The detection methodsinclude infrared absorption, microwave method and resistance method. Theinfrared method and microw...view
Density Sensors
September 12, 2024Density SensorsA device that uses vibration to directlydetect the density of a liquid. It is to set a vibrator in the liquid, or toplace the liquid inside the vibrator , and use the change of the natu...view
Oil film sensor
February 25, 2025Oil film sensorThe sensor detects the oilfilm formed on the water surface due to oil outflow. The principles ofdetecting the oil film on the water surface include using the change of lightreflectivity...view
Ion fire sensor
February 10, 2025GaugePressure SensorA pressure sensor that detects gauge pressure. The surface tobe detected of the diaphragm or diaphragm box of the pressure-bearing elementis open to atmospheric pressure, and the d...view
Minimum parameters
July 12, 2024Minimum resistance value1. The zero-power resistance value of the lowest point on the resistance-temperature characteristic curve of a positive temperature coefficient thermistor (PTC thermistor).2. T...view

Differential photoelectric sensor

Capacitive Displacement Sensor

Moisture Sensor

Density Sensors

Oil film sensor

Ion fire sensor

Minimum parameters