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Development and application of waterstop size detection
Abstract: Waterstops are divided into rubber waterstops (R) according to the manufacturing materials, such as: natural rubber, neoprene, styrene butadiene rubber, etc.; plastic waterstop (P), such as: PVC , polyethylene, etc.; metal waterstop (M), such as: copper, stainless steel, carbon steel and so on. For the inspection of the outer dimensions of the waterstop, it can be detected by a width gauge, a thickness gauge, a length gauge, and the like. This article describes the dimensions of the waterstop.
1, width measurement
The width detection can be measured online using the photoelectric type width meter, and the measurement accuracy is high, which is suitable for measuring the water stop width of various specifications. The measurement has good real-time performance, and the water stop tape width gauge is suitable for dynamic detection, and is installed in the water stop belt production line for high-precision online detection.
An LED point light source is disposed in the two emitting lenses, and the light emitted by the point source is converted into a parallel beam by the lens and directed to the two receiving lenses. The parallel beam is imaged on the photoelectric conversion element CCD chip by receiving the lens in the lens (note: one emitting lens and one receiving lens form a group of photoelectric probes). When the object to be measured passes through the field of view composed of two parallel beams, a virtual shadow appears on the image of the photoelectric conversion element, and the widths thereof are L1 and L2, respectively. After the electrical signal processing and calculation of the photoelectric conversion element, the dimensions B1 and B2 corresponding to L1 and L2 can be obtained, and B1 plus B2 plus the clear spacing C between the two lenses can be used to obtain the width of the measured object. Size A. When changing specifications, enter the control command.
The laser displacement sensor 1 and the laser displacement sensor 2 are arranged at a fixed pitch A. During operation, the laser displacement sensor 1 emits a laser beam to illuminate the lower surface of the object to be tested, and the diffuse reflection light of the lower surface spot is returned to the laser displacement sensor through the lens system. On the CCD or CMOS chip in 1 , the actual distance B1 of the laser displacement sensor 1 to the lower surface of the measured object can be obtained by analyzing and calculating the position of the spot on the CCD or CMOS chip; similarly, the laser displacement sensor 2 can be obtained. The distance B2 of the upper surface of the object. The thickness H of the measured object can be obtained by subtracting the distances B1 and B2 of the two sensors from the upper and lower surfaces of the object to be measured by the distance A between the two sensors.
3, length measurement
Length detection uses image detection, and the device uses image processing technology, which is a technology that uses computers to process, analyze, and understand visual information. It is a technology that has evolved with the advent of computer hardware, image acquisition devices, display devices, and the emergence of a variety of high-performance workstations. The mathematical models of image processing technology mainly include orthogonal models, statistical models, and predictive models. The length measuring device of the solution is a typical application for measuring the size of the image using the number of pixels in the orthogonal model.
Conclusion
Width detection, thickness detection, length detection, can be used for the detection of waterstops, and are high-precision online real-time detection equipment, so the water-belt shape size detection provides a huge guarantee, they all have size tolerance alarm function In order to understand the production status in time, it brings great convenience to the measurement.
After reading this article, do you have any thoughts or suggestions on the measurement of the waterstop, even though you leave a message below the article. Jianfeng Company will do its best to share information and experience with everyone. Models that require more rubber waterstops can leave a message below.
Our company specializes in producing various specifications: rubber waterstop, steel edge rubber waterstop, water expansion and waterstop, 651 rubber waterstop, steel putty waterstop, buried rubber waterstop, external sticker Rubber waterstop, rubber waterstop, authoritative price, find water, Jianfeng Engineering Rubber Co., Ltd. 18703187870
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