Temperature field measurement and balancing method and device for electronic thermometer calibration

By designing the temperature field measurement and balance device, using multiple thermometer inclined insertion devices to perform temperature field measurement, and maintaining the liquid level stability through the liquid level detection switch and the liquid level correction algorithm, the solution is to affect the temperature measurement accuracy of the constant temperature tank level drop The problem is that high-precision temperature detection and temperature field distribution monitoring are achieved.

CN110631742BActive Publication Date: 2025-02-11CHINA JILIANG UNIV
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Patent Information

Application Number
CN201910963172.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2019-10-11
Publication Date
2025-02-11
Estimated Expiration
2039-10-11

AI Technical Summary

Technical Problem

During the process of verifying the electronic thermometer, the drop in the constant temperature tank liquid level causes the thermometer insertion length to be unstable, affecting the accuracy of temperature measurement, and a single-point temperature measurement cannot accurately represent the temperature distribution of the entire temperature field.

Method used

Design a temperature field measurement and balance device, including a constant temperature sink, a stage, a thermometer inclined insertion device, an L-shaped cylindrical scale rod, a liquid level detection switch and a temperature balance device, and perform temperature field measurement through multiple thermometer inclined insertion devices. , and use the liquid level detection switch and liquid level correction algorithm to maintain the liquid level of the constant temperature tank.

Benefits of technology

It ensures that the thermometer and the electronic thermometer are at the same calibration height, improves the temperature detection accuracy, avoids errors caused by changes in the temperature field environment, and maintains the insertion length of the thermometer through the liquid level correction algorithm to ensure the accuracy of temperature measurement.

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Abstract

The present invention discloses a temperature field measurement and balancing method and device for electronic thermometer calibration. The present invention includes a constant temperature water tank, a loading platform, a thermometer oblique insertion device, an L-shaped cylindrical scale rod, a liquid level detection switch and a temperature measurement balance device. A loading platform is arranged above the constant temperature water tank, and three thermometer oblique insertion devices are symmetrically arranged on the front and rear sides of the loading platform. The liquid level detection switch is fixed to the loading platform through an inverted L-shaped support frame; a linear module is installed on the loading platform, and the top surface of the loading grid is connected to the linear module through a connecting rod. An L-shaped glass cylindrical scale rod is fixed to one side of the loading platform through an inverted L-shaped support frame, and the tail end of the L-shaped glass cylindrical scale rod is connected to the water outlet at the bottom of the constant temperature water tank through a silicone tube. The present invention can ensure that the electronic thermometer and the thermometer are at the same calibration position and height, solve the problem of liquid level drop caused by water evaporation, and improve the temperature measurement accuracy of the thermometer during the calibration of the electronic thermometer.
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Citation Information

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