Supply length measuring displacement measurement

Currently in precision machining and precision grating displacement measurement is often used as a measuring sensor, its direct access to the back of the second instrument, or CNC system for displacement measurement. Accuracy of the measurement sensor accuracy are determined. As electronic technology and microprocessor technology, Grating Sensors in displacement measuring system will be more widely used, and gradually to the intelligent direction of transformation. The measuring system moving grating moire generated combination of the electronic circuit to perform the automatic measurement of the displacement, the moving direction of the grating having a discriminant, the preset initial value, automatic positioning control and over-limit alarm, self-test and swap Power protection and error correction capabilities. Grating works by Moore stripe grating principle, through the photoelectric conversion to digitally represent a linear displacement precision displacement sensor. GBC Series grating is determined by reading the header, the main scale and interface components. Glass grating light evenly and small translucent engraved lines, gate lines 50 line pairs / mm, its grating pitch of 0.02mm, using four segments obtained after resolution of 5μm count pulses. Bu Generally, the number of lines according to the measurement accuracy of engraving, to determine the moving direction, the lines are carved on the phase difference of 90 ° in two. When the reading head movement, the interface circuit of the photoelectric receiver is the A-phase and B-phase two channel phase difference of 90 ° pulse the output signal is then processed through the digital display system breakdown, the resolution is the grating period divided by the signal segments number, through the electronic signal processing resolution for subdivision or 1um 5um grating's field of application: processing equipment: lathes, milling, boring, grinding, drilling, EDM machines, wire cutting and other measuring instruments used: Projector , video measuring instrument, tools, microscopes etc. can also be right on the CNC machine tool motion errors from the compensation connected with the PLC, for various types of automated mechanism displacement measurement.