Laser distance measurement circuit

Abstract

The invention relates to a laser distance measurement circuit comprising a laser generation circuit, a photoelectric sensor, a high speed signal amplification circuit, a peak comparison circuit, a microprocessor and a timing circuit. The laser generation circuit comprises a pulse generation circuit and a laser device. The first output end of the microprocessor is connected with the input end of the pulse generation circuit. The output end of the pulse generation circuit is connected with the driving end of the laser device. The photoelectric sensor detects a laser signal reflected by a target to be measured. The input end of the high speed signal amplification circuit is connected with the output end of the photoelectric sensor. The first output end of the high speed signal amplification circuit is connected with the input end of the peak comparison circuit, and the second output end is connected with the input end of the microprocessor. The output end of the peak comparison circuit is connected with the first input end of the timing circuit. The input and output end of the microprocessor is connected with the input and output end of the timing circuit. The second output end of the microprocessor is connected with the second input end of the timing circuit. The problems of high speed distance measurement and high-precision distance measurement can be solved so that the circuit stability can be greatly enhanced.

Description

technical field [0001] The invention relates to the field of target detection, in particular to a laser ranging circuit. Background technique [0002] Proximity fuze is a kind of fuze, which is mainly composed of target detection device, safety release system and ignition system. According to the classification of target detection devices, target detectors can be divided into radio target detectors, laser target detectors, infrared target detectors, etc. Radio target detectors are traditional target detectors and are widely used at present, with the characteristics of long detection distance , but the radio signal is easily caused by local active electromagnetic interference to cause the fuze to fail or explode early, losing the near-explosion effect; the laser target detector uses the detector to process and judge the received echo signal, and the optical signal has a directional signal, monochromatic Due to its unique characteristics, this type of detector has good anti-i...

AI Technical Summary

Problems solved by technology

According to the classification of target detection devices, target detectors can be divided into radio target detectors, laser target detectors, infrared target detectors, etc. Radio target detectors are traditional target detectors and are widely used at present, with the characteristics of long detection distance , but the radio signal is easily caused by local active electromagnetic interference to cause the fuze to fail or explode early, losing the near-explosion effect; the laser target detector uses the detector to process and judge the received echo signal, and the optical signal has a directional signal, monochromatic Due to its unique characteristics, this type of detector has good anti-interference performance and can achieve the purpose of high-speed ranging. However, there are still major technical problems in the realization of high-dynamic and high-precision ranging for laser target detectors.

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