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Zemax simulation method of laser tracking system based on dual-wavelength method to compensate air refractive index

A technology of air compensation and laser tracking, applied in design optimization/simulation, optical devices, instruments, etc., can solve the problems that the measurement accuracy affects the air refractive index measurement accuracy, the sensor accuracy is insufficient, and the laser tracking measurement accuracy is difficult to further improve. To achieve the effect of model optimization

Active Publication Date: 2020-04-03
BEIJING UNIV OF TECH
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Problems solved by technology

The measurement accuracy of the sensor directly affects the measurement accuracy of the air refractive index, and the sensor has the problem of insufficient accuracy, which makes it difficult to further improve the accuracy of laser tracking measurement

Method used

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  • Zemax simulation method of laser tracking system based on dual-wavelength method to compensate air refractive index
  • Zemax simulation method of laser tracking system based on dual-wavelength method to compensate air refractive index
  • Zemax simulation method of laser tracking system based on dual-wavelength method to compensate air refractive index

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Embodiment Construction

[0046] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. image 3 It is a flow chart of system simulation using ZEMAX software, and its specific implementation process and result analysis process are as follows:

[0047] Step 1: Set the optical system parameters for laser tracking measurement, namely wavelength and aperture. According to the system requirements, the wavelengths are respectively selected as 532nm and 1064nm, and the aperture is selected as 20mm.

[0048] Step 2: Use the Jones matrix to analyze the first polarizer P 1 and the second analyzer P 2 Do a simulation. P 1 and P 2 The relationship between the incident light and the transmitted light is expressed in a matrix as follows:

[0049]

[0050] Among them: A 1 , B 1 , A 2 , B 2 Indicates that the incident light vector and the outgoing light vector are in figure 2 The corresponding two components on the x-axis a...

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Abstract

The invention discloses a ZEMAX simulation method for a laser tracking system based on a dual-wavelength method for compensating an air refractive index, and is used for analyzing the influence of non-ideality of each optical element in an optical system on system energy; based on an optical system principle of the laser tracking measurement system that compensates the air refractive index based on the dual-wavelength method, according to structures between various optical elements, parameters of multiple structures are set, then the parameters are sequentially adjusted, and a model of the laser tracking measurement system based on the double-wavelength method for compensating the air refractive index is established. Parameters of various optical elements are set, the interference signal stripe contrast is analyzed, the optimal parameter setting of the optical system is achieved, and the purpose of improving the measurement precision of the laser tracking measurement system is achieved, thus the ZEMAX simulation method provided by the invention has guiding significance for the design of the laser tracking measurement optical system and the selection of the optical elements.

Description

technical field [0001] The invention relates to a ZEMAX simulation method, in particular to a ZEMAX simulation method for a laser tracking measurement system based on a dual-wavelength method for compensating air refractive index, and belongs to the field of precision measurement. Background technique [0002] Laser tracker is a high-precision measuring instrument in the field of industrial measurement. It uses high-resolution laser interferometry to achieve high-precision measurement. It is widely used in aviation, aerospace, ships, automobiles and other fields. The refractive index of air is an important parameter that affects the accuracy of laser interferometry, especially in large-scale measurements. The key to improving the accuracy of laser tracking measurement is to compensate the air refractive index of the system. At present, the compensation of air refractive index has been in the bottleneck stage in the high-precision laser tracking measurement system. [0003]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00G06F30/20
CPCG01B11/00G06F30/20
Inventor 陈洪芳汤亮石照耀戴成睿宋辉旭孙衍强
Owner BEIJING UNIV OF TECH
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