Automated linear displacement sensor calibration device

Abstract

The invention discloses an automated linear displacement sensor calibration device which mainly comprises a substrate, and dual linear guide rails, a grating ruler, a servo motor and a vertical lifting device which are fixed on the substrate; a roller screw rod is connected with the servo motor by a coupler; a horizontal regulation device, a universal clamp and a locking nut are clamped with one another and are connected with the vertical lifting device; a sliding laser reflection mirror support frame, a sliding laser interferoscope support frame and a sliding dual-frequency laser interferometer support frame are fixed on the linear guide rails; a fixed pull rod, a laser reflection mirror and a grating ruler reading sensor are fixed on the sliding reflection mirror support frame; a laser interferoscope is fixed on the sliding interferoscope support frame; a dual-frequency laser interferometer is fixed on the dual-frequency laser interferometer support frame. The calibration precision can be ensured by the arrangement of the laser calibration mechanism, manpower and time cost are greatly reduced, and the calibration work efficiency is enhanced.

Description

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AI Technical Summary

Benefits of technology

This patented technology simplifies its construction process while improving efficiency for calibrating optical devices with high-accuracy measurements. It also reduces the effort required during testing without any issues that may affect their performance or reliability. Overall, this innovation makes it easier and more efficient than previous methods.

Problems solved by technology

This patented technology describes how current linear displacements (LVDs) have limitations such as being difficult to measure accurately at different stages during manufacture processes because they require multiple measurements over several hours per day. Current solutions involve manually testing each LVD individually before it goes live outdoors but these tests may be prone to human mistakes caused by factors like variations in temperature conditions. There has been research done about improving the efficiency and effectiveness of automatic calibration systems based on optically detectable markers attached to the surface of the LVD's moving parts. However, existing devices still lack precise control capabilities needed for accurate and reliable operation.

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