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An in-situ self-calibrating temperature sensor device

A sensing device and in-situ technology, applied in thermometers, measuring devices, electrical devices, etc., can solve problems such as unfavorable real-time calibration and self-calibration, long calibration process time, loss of accuracy, etc., to achieve scientific and reliable design principles , Stable electrical performance and long service life

Active Publication Date: 2022-05-17
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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  • An in-situ self-calibrating temperature sensor device
  • An in-situ self-calibrating temperature sensor device
  • An in-situ self-calibrating temperature sensor device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The main structure of the in-situ self-calibration temperature sensing device involved in this embodiment includes a packaging case 10, a power supply module 20, a control and calibration circuit module 30, a communication circuit module 35, a 1xN electric control switch 40, a wire 50, a micro water Triple point vial 60, miniature gallium triple point vial 65, miniature water temperature calibration sensing probe 70, miniature gallium temperature calibration sensing probe 75, integrated miniature water triple point vial 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, and the second outer casing 190; each component is electrically connected and fixed in the packaging casing 10 with a water...

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 in the deep sea, and can in-situ calibrate the temperature drift caused by the sensor affected by the deep sea pressure. 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 temperature sensing device. Water triple point bottle, miniature gallium triple point bottle, 1xN electric switch, control and calibration circuit module, communication circuit module, power module and watertight pressure-resistant housing are integrated into a sensor device with an integrated structure to realize the monitoring of ambient temperature. Real-time measurement and real-time calibration to ensure long-term accurate and stable measurement of ambient temperature. Temperature sensors with in-situ real-time measurement and real-time calibration functions can eliminate measurement errors caused by performance drift caused by product aging or external environmental influences. Compared with existing technologies, its design principle is scientific and reliable, the circuit layout is reasonable, the structure is simple, the electrical performance is stable, the application occasions are wide, the service life is long, the detection and calibration is accurate, and the use range is wide.

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 main structure of the device is composed of a temperature measurement sensing probe, electrical components and control circuits packaged in a closed casing. An integrated sensor forms the structure of the device. 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 ocean hydrographic measurements. At present, even the world's highest-level ocean temperature sensor will experience performance drift under deep-sea pressure, which will affect the accuracy of measurement, and thus cannot correctly reflect the temperature changes of the deep-sea ocean...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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