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Infrared ear thermometer calibration device and method based on three-cavity blackbody radiation source

A technology of blackbody radiation source and infrared ear thermometer, which is applied in the field of three-cavity blackbody radiation source device for infrared ear thermometer calibration, which can solve the problems of inflexible temperature change and long time

Inactive Publication Date: 2016-06-15
CHINA JILIANG UNIV
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Problems solved by technology

In this way, it takes a long time to calibrate an infrared ear thermometer, and the temperature change is not flexible

Method used

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  • Infrared ear thermometer calibration device and method based on three-cavity blackbody radiation source
  • Infrared ear thermometer calibration device and method based on three-cavity blackbody radiation source
  • Infrared ear thermometer calibration device and method based on three-cavity blackbody radiation source

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Embodiment Construction

[0042] Such as figure 1 As shown, an infrared ear thermometer calibration device based on a three-cavity blackbody radiation source includes: a single-chip microcomputer main control module, a temperature display module, a temperature setting module, a first blackbody radiation source, a second blackbody radiation source and a third blackbody Radiation source; The model adopted by the single-chip main control module is AT89C52;

[0043] The three blackbody radiation sources are identical in structure, and each blackbody radiation source includes a thyristor 3, an A / D conversion circuit 9, a protection circuit 8, a thermal insulation module 4, a heating module 6, a temperature sensor module 7 and a blackbody cavity 5;

[0044] The signal output port of the thyristor 3 is connected to the input end of the protection circuit 8, and the output end of the protection circuit 8 is connected to the signal input port of the heating module 6. The heating module is arranged outside the ...

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Abstract

The invention discloses an infrared ear thermometer calibration device and method based on a three-cavity blackbody radiation source. The device includes a single-chip microcomputer main control module, a temperature display module, a temperature setting module, a first blackbody radiation source, and a second blackbody radiation source and the third blackbody radiation source; the three blackbody radiation sources are identical in structure, and each blackbody radiation source includes a thyristor, an A / D conversion circuit, a protection circuit, a thermal insulation module, a heating module, a temperature sensor module and a blackbody space cavity. The invention uses a relatively simple calibration device, which is easy to operate, makes the calibration of the infrared ear thermometer more convenient and fast, the operation process is simpler, and the cost performance is high, providing corresponding technical guarantee for the calibration of the infrared ear thermometer.

Description

technical field [0001] The invention relates to the fields of electronic circuit technology and thermodynamics technology, in particular to a special three-cavity blackbody radiation source device and method for calibrating an infrared ear thermometer. Background technique [0002] Body temperature is an important basic physiological indicator of the human body and one of the important basis for clinical disease diagnosis and life status judgment. Especially in the prevention and control of large-scale epidemics such as severe acute respiratory syndrome and avian flu, the rapid and accurate measurement of body temperature Particularly important. Infrared ear thermometers have the advantages of fast measurement speed, no direct contact between the ear thermometer itself and the measured person, and no pollution to the environment, and are widely used. my country already has a certain production capacity of ear thermometers, and has also established a stable and reliable ear ...

Claims

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Application Information

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IPC IPC(8): G01J5/00
CPCG01J5/0011
Inventor 崔巍舒心薛生虎
Owner CHINA JILIANG UNIV
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