Superconducting gravimeter double-temperature refrigerating expander intelligent monitor

Abstract

This invention discloses an intelligent monitoring device for superconducting gravimeter double-temperature refrigeration Expander, relating to a temperature monitoring and recording device. The invention mainly includes the first, second cooling-platinum resistance, ADC, microprocessor, memory, characters display, relay, and RS-232 interface. This invention uses sensors and computer technology with the integration of monitor and control to achieve the display, storage and monitoring of two refrigeration temperatures for double-temperature refrigeration Expander. When the two refrigeration temperatures are beyond the set scope, it can make the sound and light automatic alarm, and at the same time rapidly cut off the power, to protect the Expander and the superconducting gravimeter.

Description

technical field [0001] The invention relates to a temperature monitoring and recording device; in particular, it relates to a superconducting gravimeter dual-temperature refrigeration expander intelligent monitor, which can be applied to measurement, earthquake and other departments. Background technique [0002] The superconducting gravimeter utilizes the inherent stability of superconducting current, and replaces the mechanical spring suspension of the traditional gravimeter with magnetic levitation, so it has extremely high sensitivity and stability, and is one of the most accurate gravimeters in the world today. It can not only be used to detect and study geodynamic phenomena such as tides, free nuclear nutation, free oscillation, rotation change and tectonic movement of the solid earth, but also can be used to study the interaction of various circles such as the atmosphere, ocean and groundwater. The coupling effect of gravity and gravitational field provides observatio...

AI Technical Summary

Problems solved by technology

[0006] 1. It does not have the ability to continuously monitor and display the temperature of its two refrigeration stages in real time, and cannot make necessary data corrections for measurement errors that exceed the allowable accuracy of the instrument caused by temperature changes, so as to ensure the measurement accuracy of the superconducting gravimeter

[0007] 2. When the refrigeration expander breaks down and the refrigeration temperature is abnormal, it cannot automatically cut off its power supply, so that the superconducting gravimeter may break away from the superconducting state, and cannot continue to provide correct gravity data, and may even pollute the superconducting gravimeter body major accident

[0009] 4. The temperature and GPS data of the two refrigeration stages of the refrigeration expander cannot be output to the computer recording system for continuous real-time data and graphic curve display, storage and printing, which is not convenient for data analysis and judgment, and lacks the basis for maintenance

[0010] 5. It does not have the ability to display the GMT date, time and Beijing time in real time, and cannot use GPS time data to synchronize the computer recording system so that it can be accurately synchronized with GMT, which is not conducive to the recording and analysis of observation data

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