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.

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Differential photoelectric sensor

Cloth Weight Sensor

Capacitance Type Electronic Gauge

Infrared remote sensing technology

Photosensitive fire sensor

The difference between lightweight electric power-assisted bicycles and traditional electric vehicles

Metal detector