Optical sensors and instruments are measured according to optical principles. They have many advantages, such as non-contact and non-destructive measurement, almost no interference, high-speed transmission, and telemetry, remote control, etc., mainly including general optical metrology instruments, laser interferometers. Optical sensors and instruments such as gratings, encoders, and fiber optics. Designed to detect the presence of targets, or to perform motion detection in a variety of industrial, automotive, electronics, and retail automation. 3.2v12-30Ah Lithium Battery Cells 3.2v12-30Ah Lithium Battery Cells,3.2v12-30Ah Lithium Battery Cells price,3.2v12-30Ah Lithium Battery Cells product Jiangsu Zhitai New Energy Technology Co.,Ltd , https://www.zt-tek.com
In recent decades, electrical sensors have been used as standard equipment for measuring physical and mechanical phenomena. Although they are ubiquitous in test and measurement, they are inherently flawed as electrified devices, such as losses during signal transmission, and are susceptible to electromagnetic noise. These defects can make the use of electrical sensors quite challenging or even completely unsuitable in some special applications. Fiber optic sensors are an excellent solution to these applications, using a beam instead of current and a standard fiber instead of copper as the transmission medium.
Over the past two decades, the development of optoelectronics and the vast array of innovations in the fiber optic communications industry have dramatically reduced the price and quality of optical devices. By adjusting the economic scale of the optical device industry, fiber optic sensors and fiber optic instruments have been extended from laboratory test research to field applications, such as building structural health monitoring applications.
* Optical sensors are mainly laser, infrared, illuminance, visible light, and image sensors. They use the inherent characteristics of light to rapidly develop sensing technology. For example, the advent of lasers has made radio technology and optical technology soar, interpenetrating and complementary. Nowadays, many sensors have been made using lasers, which solve many technical problems that could not be solved before, making it suitable for dangerous and flammable places such as coal, oil and natural gas storage. There is also an optical fiber sensor made of laser, which can measure the parameters of crude oil injection and cracking of large oil cans. In the actual measurement location, it is not necessary to supply power, which is especially suitable for the petrochemical equipment group where the safety explosion-proof measures are very strict. It can also be used to realize the optical telemetry technology in some aspects of large steel plants. *
Principle: The LED illuminates the sampling surface, and the image to be sampled with strong contrast is imaged on the CMOS through the lens. The CMOS converts the optical image into a matrix electrical signal and transmits it to the DSP. The DSP then images the image signal and the image stored in the previous sampling period. Perform a comparative analysis and then send a displacement distance signal to the interface circuit. The interface circuit integrates the displacement signals sent by the DSP, and the displacement signals that have been transmitted into the computer are further processed by the driver, and finally the displacement of the cursor is formed in the system.