Detection technology is one of the key factors in the quality assurance of modern industrial products. The anti-war testing technology reflects the technological level of a country in a low degree. At present, with the rapid development of modern industrial production technology, the requirements for measurement accuracy, measurement efficiency, and measurement automation of industrial products are increasing. Detection technology of modern industrial production has changed from low-efficiency and low-accuracy manual inspection to high-precision, high-efficiency, real-time online and non-contact detection. Advanced measurement technology can achieve full control of the production process, improve production efficiency and product pass rate.
With the continuous improvement of processing and manufacturing technology and the continuous improvement of the processing technology, it is required that the detection means have the corresponding measurement accuracy and fast online measurement speed. However, existing detection methods (such as vernier calipers, micrometers, gauges, profilers, coordinate measuring machines, etc.) do not have the disadvantages of low accuracy and large errors, such as high labor intensity and low detection efficiency, and it is difficult to balance both speed and accuracy. The contradiction between them cannot achieve the automation and high precision requirements of the test. Increasingly emerging computer vision technology can better solve this contradiction.
The purpose of computer vision is to give the machine the unique ability of visual information processing similar to living organisms. Computer vision is used in the field of adorable testing to form a specialized technology—computer vision inspection technology. As an application of computer vision, visual inspection not only consists of visual perception, cognition and pattern recognition, but also focuses on accurate detection and positioning of spatial geometric dimensions. The detection system based on computer vision refers to a detection system that uses CCD or the like as an image sensor and comprehensively uses techniques such as image processing and precision measurement to perform non-contact two-dimensional coordinate measurement. As a new type of detection method. Visual inspection has its unique advantages, such as large range, non-contact, intuitive, fast, and high detection accuracy.
The detection system is a detection system based on surface scan image acquisition, and is fixed by an area array CCD. The product to be tested is scanned relative to the CCD to capture images. First, the detection software initializes the motion control card when it starts up, and the mechanical displacement is returned to the zero position each time the software is started. After that, the mechanical displacement stage is positioned in front of the CCD camera to prepare the scanning surface acquisition position.
After starting the inspection, the software system will control the servo motor according to the position of the movement distance required by the mechanical movement stage through the motion control card in the industrial control computer to control the servo motor, make the mechanical displacement table move horizontally, and return the displacement detection through the grating ruler. signal. At the same time, the area array CCD is set to capture the image in the external synchronization signal trigger mode, so as to ensure the synchronization of the image capturing and the movement. After image acquisition, do image processing analysis. Finally, the detection result obtained by the detection is determined, and a classification signal is output according to the determination result.
Compared with the traditional size measurement technology, this technology has the ability of on-line detection, real-time analysis, and test control, as well as the advantages of high efficiency, economy, and flexibility. This technology has more obvious advantages in the measurement of micro-size, large size, complex structure size and special-shaped curved surface size. At the same time, it can detect whether the product has bending deformation, automatic position correction function, can solve the left and right offset of the product placement position; and can detect multiple products at the same time (requires dual cameras).
Yuhai company develop and produce various plate & block sizes, electrode and metallisation configurations.This range is fabricated from 33 available Piezoelectric Material formulations for the applications of high power, sensitivity, stability needs.
Features
- Eectrode type on request
- Evaporated and chemically deposited metallisation's available
- Shear vibration plate available on request
- Thickness frequency tuning available on request
- Wide choice of PZT formulations.
Applications include
· • 1-3 Composites material available on request
· • Megasonic cleaning
· • NDT transducers
· • Pressure sensors
· • Ultrasonic sensors
• Linear ultrasonic motors
• Low frequency hydrophones
Yuhai's piezoelectric block has been utilized continuously in low frequency hydrophones in more than 30 years.
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Plates |
Length: 1-200mm |
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Width: 1-200mm |
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Thickness: 0.2-25mm |
Piezoelectric Plate,Piezo Plate,Pzt Plate,Piezo Ceramic Plate
Zibo Yuhai Electronic Ceramic Co., Ltd. , https://www.yhpiezo.com