Miniaturized swing infrared circuit system

An infrared circuit, infrared technology, applied in the measurement circuit, the use of electric radiation detectors for photometry, photometry and other directions, can solve the problems of lack of anti-interference measures, large weight and occupying space, to solve detection problems, improve The effect of anti-interference performance and high rejection ratio

Active Publication Date: 2017-02-22
BEIJING INST OF CONTROL ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, to provide a miniaturized swing infrared circuit system, whic

Method used

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  • Miniaturized swing infrared circuit system
  • Miniaturized swing infrared circuit system
  • Miniaturized swing infrared circuit system

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Embodiment Construction

[0040] Aiming at the deficiencies of the prior art, the present invention proposes a miniaturized swing infrared circuit system, through the coordinated control of the logic processing unit and the grating encoder control circuit, the control of the swing amplitude of the swing mirror is realized, and the control of the front preamplifier circuit 1. The power supply VCC of the preamplifier circuit is processed by series tracking and filtering of the bias power supply and the filter circuit, which reduces the noise of the power supply. By using a preamplifier based on a JFET-to-tube structure in the preamplifier circuit, further The noise and power consumption are reduced, and a high suppression ratio of interference is realized. The circuit system of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0041] Such as figure 1 A miniaturized oscillating infrared circuit system of the present invention is shown, including an ea...

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Abstract

The invention provides a miniaturized swing infrared circuit system. The miniaturized swing infrared circuit system includes an earth probe assembly, a swing scanning shafting assembly, an analog channel assembly, a bias power supply and motor driving unit, an output interface control unit, a logical processing unit, a grating encoder control circuit, and a special secondary DC/DC power assembly, wherein the bias power supply and motor driving unit includes a bias power supply and filtering line, a motor driving module, a sinusoidal oscillation device and an amplitude control line; and the output interface control unit includes a test interface line and a remote control remote measurement interface driving line. By means of cooperative control of the logical processing unit and the grating encoder control circuit, the miniaturized swing infrared circuit system realizes control of the swing amplitude of a swing mirror. And compared with the prior art, the miniaturized swing infrared circuit system can fully and effectively utilize the swing signal of the swing mirror and the output signal of the earth probe assembly to calculate the attitude information, and is relatively high in applicability.

Description

technical field [0001] The invention relates to control circuit technology, in particular to a miniaturized swing infrared circuit system. Background technique [0002] The infrared earth sensor is an optical measuring instrument that obtains spacecraft attitude information by measuring the difference between the infrared radiation of the earth and the sky. It can generally be divided into conical scanning, swing scanning, boundary tracking and static infrared. The type infrared earth sensor is mainly composed of an optical head, a sensor, a mechanical scanning part and a signal processing part. [0003] The main structure of the traditional swing infrared earth sensor is separated from the power supply, which is heavy and takes up a lot of space. In addition, the circuit system of the traditional swing infrared earth sensor has no anti-interference measures. When the interference noise is large, the weak signal have been greatly affected. Contents of the invention [00...

Claims

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Application Information

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IPC IPC(8): G01J1/44G01J1/04G01J1/02G01C21/02G01C21/24
CPCG01C21/02G01C21/24G01J1/0214G01J1/0403G01J1/44G01J2005/065
Inventor 张崇英彭慧田信灵刘旭力王伟华李丹凤王舒雁张阳孙艳史永敏董超张倩倩李硕苑林种会萱
Owner BEIJING INST OF CONTROL ENG
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