Self-checking temperature sensor

By integrating a self-test module and processor in the temperature sensor, self-test and correction of the temperature sensing element is achieved, and the problem of component damage of the temperature sensor in high or low temperature environments is solved, ensuring the accuracy and stability of the temperature sensor.

CN222671263UActive Publication Date: 2025-03-25XIAMEN ZHONGMAI AUTOMATION ENG CO LTD
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Patent Information

Application Number
CN202420438055.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-07
Publication Date
2025-03-25
Estimated Expiration
2034-03-07

AI Technical Summary

Technical Problem

When existing temperature sensors are used in high or low temperature environments, internal components are easily damaged due to temperature changes, and are inconvenient to discover immediately, affecting the use effect.

Method used

A self-test temperature sensor is designed, including a temperature sensing element, a processor and a self-test module. Through the self-test module, the known temperature source of the temperature sensing element is periodically self-calibrated, and the temperature signal is processed through the processor to realize self-test and correction of internal components.

Benefits of technology

The self-test function of the temperature sensor body is realized to ensure the accuracy of the output temperature value, avoid misreading caused by component damage, and ensure stability and accuracy during long-term use through sound and light alarms and emergency power supplies.

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Abstract

The self-checking temperature sensor comprises a temperature sensor main body, the top end of the temperature sensor main body is provided with an installation groove used for installing internal elements of the temperature sensor main body, and the opening of the upper end of the installation groove is fixedly provided with a connecting ring. The outer end of the connecting ring is in threaded connection with a protective top cover for protecting the mounting groove, and a temperature sensing element, a processor and a self-checking module are fixedly mounted in the mounting groove, so that a temperature signal of the temperature sensing element and a self-checking signal of the self-checking module are processed through the processor; the temperature sensing element is used for sensing the temperature change of the use environment of the internal elements of the temperature sensor main body, and the processor is used for processing the temperature signal sensed by the temperature sensing element. According to the utility model, self-inspection of the temperature sensor main body is realized, and self-inspection values can be displayed and acousto-optic alarm can be carried out at the same time.
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