A measurement and analysis implementation system and method of beam quality factor based on labview

Abstract

The invention discloses a labview-based beam quality factor measurement and analysis realization system, comprising: an initialization module; a serial port receiving cycle module; a UI event processing cycle module; an execution cycle module; a cycle configuration module and a program interface module. The invention also provides a method for realizing the measurement and analysis of the beam quality factor based on labview. The present invention conducts secondary development on the basis of the existing beam analysis program, provides a high-efficiency serial port communication mode, and provides support for M 2 The flexible control of the guide rail movement of the tester realizes the measurement of the quality factor of the laser beam.

Description

technical field [0001] The present invention relates to the computer implementation of methods and devices for industrial process control, in particular to a laser beam quality M 2 The method for detecting and realizing the factor is specifically a labview-based system and method for measuring and analyzing the beam quality factor. Background technique [0002] The beam quality is an important parameter of the laser, which has a great relationship with various errors in the application of the laser, such as imaging and processing, so the measurement of this characteristic is of great significance. An ideal laser should emit plane waves and be collimated into a beam that is completely equivalent to a cylinder, and its longitudinal section is a standard rectangle. However, the actual beam will always have a certain deviation. It is a Gaussian beam and has a hyperbolic cross section. The hyperbola can be described by the following formula: [0003] W(z) 2 =W 0 2 +Θ 2 (z-Z...

AI Technical Summary

Problems solved by technology

[0015] At present, there are two main ways to use Labview for serial communication. One is to continuously query the number of bytes in the buffer, and read the data when the number of bytes is not 0. In order to improve the real-time performance of reading, the cycle delay needs to be shortened. When there is no data transmission, it will continue to execute empty loops, wasting a lot of resources; the other is to use Active X technology, which can only return serial port data through callback functions when there is data uploading

Although this method can reduce resource occupation, the Active X execution is unstable, and the functions are complicated and the names are abstract, which is not conducive to development; and for non-Active X programming, the existing serial communication mostly uses the send-receive mode, and only when sending serial commands Read the serial port, and when there is a problem with the serial port response, it will also cause the program to get stuck or cause an error to exit, which is inflexible to use, such as the early patent CN201410246988

At the same time, there are M 2 The movement of the guide rail of the tester is only controlled by the input coordinates, which is troublesome to operate

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