Measuring scale curtains parameters and principles

Measuring light curtain is invisible infrared light emitter is emitted, the receiver receives, forming a section of invisible infrared light, how many there are that many pieces spot-beam infrared beam, and each beam line with another beam the distance between the lines is the optical axis pitch axis pitch smaller, more dense beam line; the higher the precision; when an object is detected by the light curtain, they will block the beam, so that the presence or absence of the block which beams converted into an electrical signal to the control and enforcement system. Measuring light curtain consists of a light emitter and a receiver components, light emitted from the light emitter to direct the light receiving device; when the object through measuring light curtains region, according to the infrared can not pass through opaque objects using modulated light scanned by an infrared receiver is sensitive to changes in light, reflecting the outer contour of the object, the use of serial communications hardware, to achieve control of the hardware, data processing and other functions to draw contours. Practice has proved that this method has better accuracy and real-time test results simple and intuitive. Measuring light curtains, as a precision linear optical sensor, dimensions of the object to be detected can achieve non-contact measurement, has been successfully used to detect and measure product size shape, hole detection, spraying control testing, nondestructive testing, classification detection, location tracking applications; ● Dimensions: 35 mm × 42 mm ● High resolution: minimum axis spacing of only 1.25mm, 1.25mm minimum width of the object can be detected; ● main signal outputs are: Analog output ( 1-5VDC output or 4-20mA or 1-10VDC output), RS485 communication output. ● Scan mode: parallel scan (default); Interlace; ● fast response time, every spot beam only 0.072ms