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

Capacitance Type Electronic Gauge
July 17, 2024Capacitance Type Electronic GaugeAn electric micrometerusing a capacitive sensor is used to measure small changes in length. It ismainly used for precision comparison measurement, vibration amplitudem...view
Working principle of lightweight electric power-assisted bicycle - rear axle hook sensor
August 5, 2024Working principle of lightweight electricpower-assisted bicycle - rear axle hook sensorThe gray component in the figure is the "rear axle hook sensor",which is installed at the junction of the rear se...view
Infrared Detectors
October 12, 2024Infrared DetectorsA device that is sensitive to infraredradiation and can convert infrared radiation into electrical energy or otherphysical quantities that are easy to measure. The spectral character...view
Medical Sensors
January 18, 2025Medical SensorsA general term for sensorsused in medical research and clinical practice. Bioinformation in the medicalfield involves many aspects, so there are many medical sensors. For example, elect...view
ECG Sensor （Electrocardiogram Sensor）
September 27, 2024ECG Sensor （ElectrocardiogramSensor）Sensors that sense the action potentialwaveforms of cells in different areas of the heart and convert them into usableoutput signals.view
Fiber Optic Displacement Sensor
September 18, 2024Fiber Optic DisplacementSensorOptical fiber sensors thatcan detect displacement are divided into two categories according to theirstructure : one is a sensor that uses optical fiber to transmit light ...view

Differential photoelectric sensor

Capacitance Type Electronic Gauge

Working principle of lightweight electric power-assisted bicycle - rear axle hook sensor

Infrared Detectors

Medical Sensors

ECG Sensor （Electrocardiogram Sensor）

Fiber Optic Displacement Sensor