Grating digital display device with remote triggering function

Abstract

The invention discloses a grating digital display device with a remote triggering function, and belongs to the field of displacement measurement. The output end of a front-end signal processing moduleis connected with the input end of a CPLD processing module of a complex programmable logic device, the output end of a remote triggering input interface is connected with the input end of the CPLD processing module of the complex programmable logic device, the input end of a serial port communication module is connected with the output end of the CPLD processing module of the complex programmable logic device, the CPLD processing module of the complex programmable logic device is connected with a single-chip microcomputer control module, and the single-chip microcomputer control module is further connected with a nixie tube display module. In order to reduce noise interference, the remote triggering input signal of the remote triggering input interface is processed by increasing a pull-up resistor and a filtering capacitor. According to the grating digital display device with the remote triggering function, a remote synchronous triggering hardware interface is provided for the grating digital display device, the remote real-time dynamic calibration of the tested object is realized by synchronously triggering the hardware interface, the working process of the tested object is notinfluenced, and then the working efficiency of the calibration is improved.

Description

Technical field [0001] The invention relates to the calibration field of the axis motion system of a numerical control machine tool or a coordinate measuring machine based on grating feedback, in particular to a grating digital display device with a remote trigger function, belonging to the field of displacement measurement. Background technique [0002] At present, the geometric parameter calibration of the axis motion system of CNC machine tools or coordinate measuring machines with grating as feedback is only fixed-point static calibration, and these motion test systems or equipment often perform low-frequency reciprocating motion, so dynamic calibration is closer Based on actual needs. The usual grating digital display devices generally do not have the synchronous trigger input / output function, that is, there is no Sync_In / Sync_Out interface. During the product development process of the domestic instrument and meter manufacturers, due to the low requirements for the measurab...

AI Technical Summary

Problems solved by technology

However, ordinary grating digital display devices generally do not have synchronous trigger input / output functions, that is, no Sync_In / Sync_Out interface. During the product development process, domestic instrumentation manufacturers design and produce There is almost no synchronous trigger input / output function in the grating digital display device, which makes it difficult to carry out routine verification work on the grating digital display device in the later stage, especially for dynamic calibration.

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