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What methods can the 2.5-dimensional image measuring instrument measure height?

信息来源于:互联网 发布于:2022-04-15

The video measuring instrument has a powerful detection function, which can detect multiple complex parameters of the workpiece, thereby providing quality assurance for production. In the process of inspecting some workpieces, sometimes it is necessary to use a 2.5-dimensional image measuring instrument to measure the height of the workpiece. What methods can the 2.5-dimensional image measuring instrument measure the height?
     Under normal circumstances, when we use the video measuring instrument to measure the height of the workpiece, we need to destroy the parts. Next, Jiateng will explain to you two methods of measuring the height of parts with a 2.5-dimensional measuring instrument without destroying the parts.

     1. Contact height measurement; install probes on the Z axis; directly measure the results by contact method, this method also has to add modules to the software of the two-dimensional imager.

     2. Image altimetry; add an altimetry module to the 2.5-dimensional image measuring instrument software, and use the focal length to adjust a plane clearly; then find another plane; the difference between the two planes is the height to be detected. The systematic error can be controlled within 5 microns.

     If it is simply to measure the relative height, it is recommended to consider adding any of the above two methods to the image measuring instrument; if it is necessary to detect the spatial size and composite size, it is recommended to consider the three-coordinate measuring instrument.

     The main measurement function of the 2.5-dimensional image measuring instrument is to measure the two-dimensional data of the workpiece, and cannot measure complex height data. In terms of measuring the height data of the workpiece, the CMM has a more powerful measurement function than the image measuring instrument.

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