Single-lens laser trigonometry thickness measuring instrument

A technology of laser triangulation and thickness measurement, which is applied in the field of thickness measurement and single-lens laser triangulation thickness measuring instrument, can solve the problems such as difficult synchronization of the system, and achieve the effect of good real-time performance, high precision and guaranteed synchronization
CN102679892AInactive Publication Date: 2012-09-19HUAZHONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Publication Date
2012-09-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of geometric size measurement, and discloses a single-lens laser trigonometry thickness measuring instrument. The measuring instrument comprises laser devices, an aperture diaphragm, planar glass, a combined lens, an image detector, an image processor and certain auxiliary fine adjusting devices. When the measuring instrument works, the upper and lower laser devices aligned coaxially emit two beams of collimated rays, the rays are focused to the surface of a measured object by the lens in front of the laser devices, the diffuse reflectance rays on the surface of the measured object pass through the aperture diaphragm and the planar glass and then are gathered to the image detector through the combined imaging lens, image data are transmitted to the image processor for image processing, the actual thickness of the measured object is calculated according to the distance between two light spots, and the measurement thickness is finally displayed. By inheriting the advantages of a laser triangle thickness measuring method, improving the structure of a light path and optimizing the design, the problems that upper and lower independent measuring systems are difficult to synchronize and the precision is difficult to ensure because a double-path laser trigonometry thickness measuring instrument is affected by vibration of the measured object are well solved.
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Description

technical field

[0001] The invention belongs to the technical field of geometric dimension measurement, and in particular relates to a single-lens laser triangulation thickness measuring instrument, which is especially suitable for measuring the thickness of non-transparent plates and films such as steel plates, battery pole pieces, cow felt and the like. Background technique

[0002] Ultra-thin plates and films such as colored steel plates, polyethylene films, and battery carbon negative electrode films are widely used in actual production. With the advancement of processing technology, the precision of material processing is getting higher and higher. Detection accuracy also puts forward higher requirements.

[0003] Online thickness measurement of non-transparent films and plates can control the thickness of finished products, improve product quality, increase yield, reduce waste of raw materials, and improve the market competitiveness of enterprises. At the same time, a...

Claims

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