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Photoelectric weak signal processing system

A technology for processing systems and weak signals, applied to electrical components, using electrical devices, using electromagnetic means, etc., can solve problems such as inability to accurately obtain displacement data, small output signal magnitude of PSD displacement sensors, etc., and achieve the effect of ensuring adaptability

Active Publication Date: 2014-09-24
BEIJING INST OF SPACE LAUNCH TECH +1
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Problems solved by technology

[0005] The purpose of the present invention is to provide a photoelectric weak signal processing system to solve the technical problem that the output signal level of the PSD displacement sensor is too small and the displacement data cannot be accurately obtained

Method used

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  • Photoelectric weak signal processing system
  • Photoelectric weak signal processing system
  • Photoelectric weak signal processing system

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Embodiment Construction

[0025] Such as figure 1 As shown, the photoelectric conversion signal source in this embodiment is a PSD displacement sensor 01 with two signal output terminals, and each signal output terminal of the PSD displacement sensor 01 is respectively sequentially connected to a signal acquisition circuit 02, a signal filter circuit 03 and a rectification circuit 04, the current output terminals of the two rectification circuits 04 are respectively connected to a signal input terminal of the differential amplifier circuit 05, the signal output terminal of the differential amplifier circuit 05 is connected to the signal input terminal of the constant current source drive circuit 06, and the constant current source drive circuit The signal output terminal of 06 is connected to one end of the long-distance signal cable, where:

[0026] The signal acquisition circuit 02 is used to acquire a μA weak signal at a signal output terminal, filter high-frequency harmonic components, and amplify ...

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Abstract

A photoelectric weak signal processing system comprises a PSD displacement sensor, wherein each signal output end of the PSD displacement sensor is respectively and sequentially connected with a signal acquisition circuit, a signal filter circuit and a rectifying circuit, the current output ends of two rectifying circuits are respectively connected with a signal input end of a differential amplifier circuit, the signal output end of the differential amplifier circuit is connected with the signal input end of a constant current source driving circuit, the signal output end of the constant current source driving circuit is connected with one end of a long-distance signal cable, and the real orientation change situation of a target can be effectively and reliably indicated. The adaptive capacity to the complicated working conditions of a collimation device is ensured through effective and reliable transmission of photoelectric weak signals, and a basis is laid for remote slant collimation.

Description

technical field [0001] The invention relates to a signal processing system, in particular to a photoelectric conversion signal processing system. Background technique [0002] Aiming equipment In the process of photoelectric self-collimation and aiming, the receiving part of the light source is responsible for sending the change of the target azimuth in real time and transmitting the information to the control system through the processing circuit, so the signal processing of the receiving part is a key technology. [0003] In the equipment that uses the photosensitive triode as the receiving part, in order to realize the displacement measurement, two triodes have to be installed and debugged together, which brings a certain system error to the aiming device. The interference of environmental factors such as light and power supply will affect the reliability of signal acquisition to a certain extent. [0004] In order to solve the above problems, the PSD displacement sensor...

Claims

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Application Information

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IPC IPC(8): G01B7/02H03F3/45H03H5/00F41G1/00
Inventor 范毅丁爽李金梅宋小艳李发动王宇冯凤雪黄瑷怡
Owner BEIJING INST OF SPACE LAUNCH TECH
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