Pulsed laser range finding detector APD adjustment circuit

Abstract

The invention discloses a pulsed laser range finding detector APD adjustment circuit, which is composed of a high-voltage circuit, a detection circuit, a signal feedback circuit, a data processing circuit and a positive temperature compensation circuit, wherein the data processing circuit is connected with the high-voltage circuit, amplifying circuits are each connected with the detection circuit and the signal feedback circuit, and the signal feedback circuit is connected with the positive temperature compensation circuit. Compared with the traditional bias-voltage APD adjustment circuits, the pulsed laser range finding detector APD adjustment circuit has the advantages of wide application range of ambient working temperature, large self-voltage adjustment range, simple circuit structure, high automation degree of rapid circuit adjustment along with temperature and noise as well as accurate adjustment value, and further has the temperature consumption, noise feedback and program-controlled adjustment functions, thereby greatly improving the operating adaptability, stability and flexibility of the bias-voltage APD adjustment circuit.

Description

technical field [0001] The invention relates to an APD adjustment circuit of a pulse laser ranging detector, which belongs to the technical field of photoelectric detection. Background technique [0002] The pulsed laser rangefinder is a complex, high-tech product that combines optoelectronics and electromechanics. With the help of sighting equipment, the target measurement within the range can be achieved. The pulsed laser rangefinder avalanche detector bias voltage APD adjustment circuit is a pulsed laser. An avalanche detector bias voltage APD adjustment circuit necessary for rangefinders. The performance of the adjustment circuit directly determines the overall performance of the pulsed laser rangefinder. Therefore, in the currently used pulsed laser rangefinders, All are equipped with a bias voltage APD adjustment circuit, but the currently used bias voltage APD adjustment circuit is relatively responsible for its structure, and has a relatively narrow temperature adapt...

AI Technical Summary

Problems solved by technology

[0002] The pulse laser range finder is a complex, high-tech product that combines optics, electromechanics and electronics. With the aid of sight and sight equipment, it can achieve target measurement within the range of the range. The pulse laser range finder avalanche detector bias APD adjustment circuit is a pulse laser An avalanche detector bias APD adjustment circuit is necessary for the range finder. The performance of the adjustment circuit directly determines the overall performance of the pulse laser range finder. Therefore, in all kinds of pulse laser range finders currently used, All of them are equipped with a bias APD adjustment circuit, but the structure of the currently used bias APD adjustment circuit is relatively responsible, and the temperature adaptability to the surrounding working environment is relatively narrow, and its own voltage adjustment range is relatively small. The ability to quickly and automatically adjust temperature and noise is also relatively poor, the disadvantages of single function and insufficient work flexibility, which greatly limit the working performance of the pulsed laser rangefinder, so it is urgent to develop a new type of bias APD adjustment circuit

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