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What is the principle of laser sensor

  • Categories:INDUSTRY NEWS
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  • Time of issue:2021-11-30 16:03
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(Summary description)Laser sensor is a sensor that uses laser technology for measurement. It consists of a laser, a laser detector and a measuring circuit. Laser sensor is a new type of measuring instrument.

What is the principle of laser sensor

(Summary description)Laser sensor is a sensor that uses laser technology for measurement. It consists of a laser, a laser detector and a measuring circuit. Laser sensor is a new type of measuring instrument.

  • Categories:INDUSTRY NEWS
  • Author:
  • Origin:
  • Time of issue:2021-11-30 16:03
  • Views:
Information

Laser sensor is a sensor that uses laser technology for measurement. It consists of a laser, a laser detector and a measuring circuit. Laser sensor is a new type of measuring instrument. Its advantages are that it can realize non-contact long-distance measurement, fast speed, high precision, large range, strong anti-light and electrical interference ability.

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When the laser sensor is working, the laser emitting diode is first aimed at the target to emit laser pulses. The laser light is scattered in all directions after being reflected by the target. Part of the scattered light returns to the sensor receiver and is imaged on the avalanche photodiode after being received by the optical system. The laser sensor manufacturer tells you that the avalanche photodiode is an optical sensor with an internal amplification function, so it can detect extremely weak light signals and convert them into corresponding electrical signals. The most common one is a laser ranging sensor, which can determine the target distance by recording and processing the time from when a light pulse is sent to when it is received. The laser sensor must measure the transmission time extremely accurately, because the speed of light is too fast.
The main function of the laser sensor is to use the laser's high directivity, high monochromaticity and high brightness to achieve non-contact long-distance measurement. The laser sensor is often used for the measurement of physical quantities such as length, distance, vibration, speed, and orientation. It can also be used for flaw detection and monitoring of atmospheric pollutants.

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