An Automatic Verification Method for Standard Platinum Resistance Thermometer

Abstract

The invention discloses an automatic verification method for a standard platinum resistance thermometer, which comprises a computer, a precision temperature measuring electric bridge, a transfer switch, a flexible grabbing device, an annealing furnace, a metal fixed point device, a water triple point bottle and a standard platinum resistance thermometer When working, the thermometers to be tested are arranged in the waiting area according to the sequence of numbers, and their terminals are respectively connected to each channel of the transfer switch; when starting the verification, the computer controls the flexible grabbing device to take the thermometer out of the waiting area and put it into the fixed point device for testing. The temperature is in the middle; the computer controls the precision temperature measuring bridge to start measuring, and judges whether the reading conditions are met through the preset judgment criteria and automatically reads. After the measurement is completed, the computer controls the flexible grabbing device to move the thermometer from the fixed point device to the measuring device. Take it out from the warmer and send it to the next waiting area; repeat the operation until all the measurement work is completed, the computer will analyze and process the collected data, and automatically generate the original verification record. Data collection is fully automated, saving manpower.

Description

technical field [0001] The invention relates to an automatic verification method for a standard platinum resistance thermometer. Background technique [0002] At present, the verification of standard platinum resistance thermometers still relies on manual operation. In 1989, Wu Fang and Tang Zenghui of the No. 304 Institute published the paper "Automatic Calibration System for Standard Platinum Resistance Thermometer" in "Measurement Technology", which only realized the metal fixed point reproduction process and standard platinum resistance thermometer according to the conditions of the equipment at that time. Partial automation of the data collection process of the resistance thermometer, the induction of solidification in the process of reappearing the metal fixed point still requires manual operation, and there is a human-computer interaction process in the data collection process, especially the insertion / extraction of the standard platinum resistance thermometer for tem...

AI Technical Summary

Problems solved by technology

In 1989, Wu Fang and Tang Zenghui of the No. 304 Institute published a paper "Automatic Verification System for Standard Platinum Resistance Thermometers" in "Measurement Technology", which only realized the metal fixed point reappearance process and the standard platinum resistance thermometer according to the conditions of the equipment at that time. Partial automation of the data collection process of the resistance thermometer, the induction of solidification in the process of reappearing the metal fixed point still requires manual operation, and there is a human-computer interaction process in the data collection process, especially the insertion / extraction of the standard platinum resistance thermometer for temperature measurement of the fixed point device still relies on personnel operation, there is inevitably a certain risk of damage to the platinum resistance thermometer and the fixed point

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