Temperature measurement method based on silver-lithium alloy

A technology of temperature measurement and lithium alloy, which is applied in thermometers, thermometers with physical/chemical changes, measuring devices, etc., to achieve the effect of transmitting signals without connection, free from environmental interference, and wide measurement range
CN112649111AInactive Publication Date: 2021-04-13SOUTHWESTERN INST OF PHYSICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHWESTERN INST OF PHYSICS
Publication Date
2021-04-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of reactor temperature measurement, and particularly relates to a temperature measurement method based on silver-lithium alloy; the method comprises the following steps: determining the range of a target temperature of an environment to be subjected to temperature measurement as [A1, A2]; determining the melting point range of a silver-lithium alloy sample to be [T1, T2]; selecting a melting point value every X DEG C, determining the component proportion of the silver-lithium alloy corresponding to the selected melting point value according to a corresponding silver-lithium alloy phase diagram, and preparing uniform silver-lithium alloy with different melting point values; processing the alloy into silver-lithium alloy samples with the same shape; sequentially putting the processed silver-lithium alloy samples into an environment to be subjected to temperature measurement, and measuring the temperature of the environment to be subjected to temperature measurement; and after the temperature measurement is finished, judging the actual melting states of the silver-lithium alloy samples with different melting point values, and determining the temperature interval of the environment to be subjected to temperature measurement. The method provided by the invention can accurately measure the temperature of the environment to be measured under high radiation or other extreme environments.
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Description

technical field

[0001] The invention belongs to the technical field of reactor temperature measurement, and in particular relates to a temperature measurement method based on silver-lithium alloy. Background technique

[0002] Conventional temperature measurement generally uses mechanical thermometers, liquid thermometers, infrared rays or thermocouples, etc. for measurement.

[0003] However, in high-radiation environments such as reactor cores or other extreme environments, these conventional temperature measurement methods may not be applicable due to space constraints, environmental influences, electromagnetic interference, inability to connect leads and transmit signals. Therefore, it is necessary to develop a new measurement method to measure and monitor the temperature in high-radiation environments such as reactor cores or other extreme environments.

[0004] Silver-lithium alloy is a kind of homogeneous crystal alloy. Compared with other eutectic or homogeneous all...

Claims

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