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Miniature laser two-dimension scanning survey system

A two-dimensional scanning and measurement system technology, applied in radio wave measurement systems, measurement devices, optics, etc., can solve the problems of complex control, low scanning frequency, large volume and power consumption, and achieve small size, high integration, The effect of low power consumption

Inactive Publication Date: 2009-01-14
TSINGHUA UNIV
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Problems solved by technology

However, the scanning drive circuit of the galvanometer adopts a servo system, the control is more complicated, the scanning frequency is low, and the volume and power consumption are relatively large.

Method used

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  • Miniature laser two-dimension scanning survey system
  • Miniature laser two-dimension scanning survey system
  • Miniature laser two-dimension scanning survey system

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Experimental program
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Embodiment Construction

[0029] The principle and design of each part of the present invention will be specifically described below.

[0030] 1. System working principle and optical path design

[0031] The emission and reception of the laser beam are realized through the design of the optical path, such as figure 2shown. The laser is started to work by the control module. The output beam of the laser is first divided into two parts by the beam splitter 2, and the transmitted part is received by the photoelectric sensor A after passing through the reflector 3 to form an inner optical path. The reflective part passes through the miniature two-dimensional scanning mirror 1 to perform two-dimensional scanning on the measured target, and the light beam reflected by the target object is reflected by the miniature two-dimensional scanning mirror 1 again, and after passing through the beam splitter 2, it is received by the photoelectric sensor B to form A system in which the probe beam exits and returns c...

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Abstract

A minitype laser two-dimensional scanning measurement system belongs to the laser measurement technique field and is characterized in that the minitype laser two-dimensional scanning system used for measuring the distance, azimuth and pitch angle of an measured object is formed by a laser, a minitype two-dimensional scanning mirror, a range module, an angle measurement module and a controller on the basis of the minitype two-dimensional scanning mirror and has the advantages that the volume is small; the power cost is low; the scanning speed is high and the measurement accuracy is high with the maximal measurement distance of 10km, a measurement accuracy of 3m, an angle-measurement scope of 20 degree multiplied by 20 degree and an angle-measurement accuracy of 0.1 degree.

Description

technical field [0001] The invention relates to a micro-laser two-dimensional scanning measurement system, which belongs to the field of opto-mechanical-electrical integration technology and MEMS technology (Micro-Electro-Mechanical System). Background technique [0002] Autonomous scanning is a key technology for space target detection. It is mainly used to scan and detect target spacecraft in a certain area of ​​space, and measure their relative distance and relative orientation. Autonomous scanning technology can be divided into satellite body scanning, pod tracking scanning, and mirror two-dimensional space scanning, among which satellite body scanning increases the complexity of satellite attitude control, and pod tracking scanning is more difficult in terms of weight, power consumption, and volume. Relatively large, and mirror two-dimensional space scanning is more suitable for the use of micro-satellites. [0003] The traditional mirror scanning methods include rotat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/06G02B26/10
Inventor 尤政张弛张高飞齐炜胤
Owner TSINGHUA UNIV
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