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Electric worm type laser radar echo spectrum separator

A lidar and separator technology, applied in the field of spectral separators, can solve the problems affecting lidar detection accuracy, large appearance size, loss of echo signals, etc., to facilitate photoelectric conversion and data sampling, fast spectral separation, and reduced The effect of hardware cost

Inactive Publication Date: 2015-12-09
贾洪涛
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this technology, firstly, has a large appearance size, which is not conducive to the portability of the laser radar for field measurement, and secondly, it requires extremely high stepping accuracy of the stepping motor. Well, it is easy to cause the loss of the echo signal and affect the detection accuracy of the lidar
In addition, if there is a mechanical failure, the corresponding optical filter cannot be picked up and measured, which may easily lead to wrong measurement

Method used

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  • Electric worm type laser radar echo spectrum separator
  • Electric worm type laser radar echo spectrum separator

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Embodiment Construction

[0025] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0026] As shown in the figure, an electric worm-type laser radar echo spectrum splitter includes a filter 1 and a splitter housing 2, and several filter guide grooves 3 and optical filters are arranged in the splitter housing. Bracket 4, the filter can be moved up and down in the guide groove of the filter; the separator housing is also provided with an electric worm reducer 5 that drives the filter to move up and down, and the electric worm The worm wheel output shaft of the speed reducer is connected with a rotating lead screw 6, and the rotating screw rod is arranged on the optical filter holder, and the moving screw nut 7 that drives the optical filter to move up a...

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Abstract

The invention discloses an electric worm type laser radar echo spectrum separator comprising filters and a separator casing. A plurality of filter guide slots and filter holders are arranged inside the separator casing. The filters can be arranged in the filter guide slots in an up-and-down movement mode. Electric worm-gear reducers for driving the filters to move up and down are arranged on the separator casing. A worm gear output shaft of each electric worm-gear reducer is connected with a rotary screw, and the rotary screw is arranged on the corresponding filter holder. Each rotary screw is equipped with a mobile nut for driving the corresponding filter to move up and down. The hardware cost of a sampling circuit is greatly reduced; at most ten kinds of spectral signals can be separated; spectrum separation is fast and error-free; and two or more filters can be randomly combined to form a band-pass filter within a spectral range in order to meet the requirement of laser radar for special measurement.

Description

technical field [0001] The invention belongs to the field of spectrum separators, in particular to an electric worm type lidar echo spectrum separator. Background technique [0002] With the rapid development of laser and optoelectronic technology, lidar has been used more and more in atmospheric remote sensing. Using the characteristics of good directivity and high resolution of laser detection, remote measurement of the atmosphere, receiving atmospheric scattered light and analyzing and processing, can invert and calculate the parameters of various items of the atmosphere, such as temperature, velocity, gas properties, etc. Because the atmosphere has elastic scattering and inelastic scattering (ie, rotational Raman and vibrational Raman) for the same incident light, and the echo spectra caused by these two kinds of scattering are distributed in different wave bands. In addition, due to the different gas components contained in the atmosphere, the echoes of inelastic scatt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/481
CPCG01S7/4816
Inventor 贾洪涛
Owner 贾洪涛
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