Automatic calibration method of standard platinum resistance thermometer

Abstract

The invention discloses an automatic calibration method for a standard platinum resistance thermometer. The standard platinum resistance thermometer comprises a computer, a precise temperature measurement bridge, a change-over switch, a flexible grabbing device, an annealing furnace, a metal fixed point device, a water three-phase point bottle and a standard platinum resistance thermometer body. During working, thermometers to be detected are arranged in a waiting area according to a numbering sequence, and terminals of the thermometers to be detected are respectively connected with channels of the change-over switch, when verification is started, the computer controls the flexible grabbing device to take out the thermometer from the waiting area and put the thermometer into the fixed point device for temperature measurement, the computer controls the precise temperature measurement bridge to start measurement, judges whether a reading condition is met or not according to a preset judgment criterion and performs automatic reading, and after measurement is completed, the computer controls the flexible grabbing device to take out the thermometer from the fixed point device and send the thermometer to a next waiting area, the operation is repeated till all the measurement work is completed, the acquired data are analyzed and processed by the computer, and a verification original record is automatically generated. The standard platinum resistance thermometer is advantaged in that the whole data collection process is automatic, and manpower is saved.

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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