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In-situ self-calibration type temperature sensing device

A sensing device and in-situ technology, applied to thermometers, measuring devices, electrical devices, etc., can solve the problems of long calibration process, unfavorable real-time calibration and self-calibration, and high cost

Active Publication Date: 2020-11-24
德州尧鼎光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the national metrology institute to the provincial and municipal metrology institutes, and then to the factory's laboratory, each level of transmission will lose 1 / 3 of the accuracy
This large device and calibration process is complex to operate, and the calibration process is time-consuming and expensive, which is not conducive to real-time calibration and self-calibration

Method used

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  • In-situ self-calibration type temperature sensing device

Examples

Experimental program
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Effect test

Embodiment 1

[0018] The main structure of the in-situ self-calibration temperature sensing device involved in this embodiment includes a package casing 10 , a power module 20 , a control and calibration circuit module 30 , a communication circuit module 35 , a 1×N electronically controlled switch 40 , a wire 50 , and a micro water Triple point bottle 60, miniature gallium triple point bottle 65, miniature water temperature calibration sensor probe 70, miniature gallium temperature calibration sensor probe 75, integrated miniature water triple point bottle device 80, integrated miniature gallium triple point Bottle device 85, temperature measurement sensor probe 90, first refrigerator 100, second refrigerator 150, first sealing plug 110, second sealing plug 160, first conducting wire 120, second conducting wire 170, first alcohol 130, the second alcohol 180, the first outer casing 140, the second outer casing 190; the electrical information communication type combination fixing device of eac...

example example 2

[0024] The in-situ self-calibration temperature sensor prepared in this embodiment is applied to the measurement of the ambient temperature of seawater under the deep sea, and can calibrate the temperature drift caused by the sensor affected by the pressure of the deep sea in-situ. Its temperature parameters are stable and can achieve long-term stability of temperature measurement better than 1mK and above.

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Abstract

The invention belongs to the technical field of sensor design and preparation, and relates to an in-situ self-calibration type temperature sensing device. The main body structure of the device is an integrated sensor composed of a temperature measurement sensing probe, an electrical element packaged in a closed shell and the like. A miniature water three-phase point bottle, a miniature gallium three-phase point bottle, a 1 * N electric switch, a control and calibration circuit module, a communication circuit module, a power supply module and a watertight pressure-resistant shell are integratedinto an integrated sensing device; real-time measurement and real-time calibration of the environment temperature are realized; long-term accurate and stable measurement of the environment temperature is ensured; the temperature sensor has in-situ real-time measurement and real-time calibration functions, and measurement errors caused by performance drifting due to product aging or external environment influence can be eliminated; Compared with the prior art, the device has the advantages of scientific and reliable design principle, reasonable circuit layout, simple structure, stable electrical performance, wide application occasions, long service life, accurate detection and calibration, and wide application range.

Description

Technical field: [0001] The invention belongs to the technical field of sensor design and preparation, and relates to an in-situ self-calibration temperature sensing device. The integrated sensor constitutes the device structure. Background technique: [0002] In social and economic activities, science and technology are the primary productive forces. In various technical projects, the concept and parameters of temperature are widely used. Seawater temperature is an important characteristic of the ocean and the most basic parameter in marine hydrology. At present, even the world's highest-level ocean temperature sensor will have performance drift under deep-sea pressure, which affects the accuracy of the measurement and cannot correctly reflect the temperature change of the ocean under the deep-sea. In addition to the marine environment, in harsh application environments, such as high pressure environments, large changes in the surrounding temperature field will generate s...

Claims

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Application Information

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IPC IPC(8): G01K7/16G01K1/02G01K1/12G01K1/14G08C17/02G08C19/00G08C23/06
CPCG01K7/16G01K1/024G01K1/12G01K1/14G08C17/02G08C19/00G08C23/06Y02A90/30
Inventor 吴锜刘海玲高莉媛
Owner 德州尧鼎光电科技有限公司
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