Inspection and calibration device and method for monocoil vibrating wire instrument

Abstract

The invention relates to an inspection and calibration device and method for a monocoil vibrating wire instrument. The device comprises a monocoil vibrating wire instrument physical quantity electric generation table, a monocoil vibrating wire instrument signal collecting and processing circuit and an upper computer; the monocoil vibrating wire instrument physical quantity electric generation table comprises a controller and a servo mechanism which are connected with each other, and the servo mechanism is connected with the induction end of the monocoil vibrating wire instrument; the monocoil vibrating wire instrument signal collecting and processing circuit comprises an vibration exciting circuit, a vibration picking circuit, a vibration exciting and vibration picking switching circuit and a master control MCU, the vibration exciting circuit, the vibration picking circuit and the vibration exciting and vibration picking switching circuit are all connected with the master control MCU, the vibration exciting and vibration picking switching circuit is connected with the vibration exciting circuit and the vibration picking circuit, the outgoing cable of the monocoil vibrating wire instrument is connected with the vibration exciting and vibration picking switching circuit, and the upper computer is connected with the controller and the master control MCU. The inspection and calibration device for the monocoil vibrating wire instrument has the advantages of achieving the automation of the inspection and calibration process, and improving the efficiency of the inspection and calibration.

Description

technical field [0001] The invention relates to the technical field of health monitoring of geotechnical engineering, in particular to a device and method for checking and calibrating a single-coil vibrating wire instrument used in safety monitoring instruments of geotechnical engineering. Background technique [0002] In the safety monitoring of geotechnical engineering, safety monitoring instruments such as vibrating wire (or steel string) instruments are usually used to monitor physical quantities such as stress and strain, temperature, joint opening, leakage and deformation of geotechnical engineering. To analyze and judge the safety of geotechnical engineering. Vibrating wire instruments (or vibrating wire transducers) consist of a homogeneous steel string fixed at both ends. The length of the steel string is L. When sensing the external force F (which can be the stress and strain of geotechnical engineering, temperature, joint opening, leakage and deformation, etc.), ...

AI Technical Summary

Problems solved by technology

[0008] The present invention aims at the problem that the inspection and calibration scheme of the existing single-coil vibrating wire instrument before leaving the factory relies on the low efficiency of the operator's manual operation and the poor accuracy of the inspection and calibration due to the operator's own ...

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