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High-precision temperature sensor test rectifier box

A temperature sensor and high-precision technology, which is applied in thermometer testing/calibration, thermometers, instruments, etc., can solve the problems of lower test efficiency and slow change of fairing temperature, and achieve the effect of improving test efficiency and ensuring stability

Pending Publication Date: 2020-12-22
山东华科半导体研究院有限公司
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AI Technical Summary

Problems solved by technology

The method of adding a fairing to the high and low temperature box can make the temperature stability better, but the temperature inside the fairing changes slowly, which will reduce the test efficiency

Method used

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  • High-precision temperature sensor test rectifier box

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Embodiment Construction

[0015] see figure 2 and image 3 , the present invention is for figure 2 The fairing shown is improved, and the fairing box of the present invention can also be called a fairing, and its effect is the same as figure 2 Similar to the fairing of the fairing, both provide a test environment for the temperature sensor in the fairing.

[0016] The rectifier box of the present invention includes a heat-insulating box body, and the heat-insulating box body is provided with a ventilating window that can be closed through the box wall, and the ventilating window realizes the opening and isolation of the inner cavity of the box body and the outside of the box body through a controllable isolation structure, and the controllable isolation The control unit of the structure is provided with a communication interface.

[0017] see Figure 4 , As an embodiment, the controllable isolation structure is a louver-type isolation structure, and the rectifier box is provided with a louver-ty...

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Abstract

A high-precision temperature sensor test rectifier box relates to the temperature sensor test technology. The high-precision temperature sensor test rectifier box comprises a heat insulation box body,the heat insulation box body is provided with a closable ventilation window penetrating through the box wall, the ventilation window achieves opening and isolation of an inner cavity of the box bodyand the exterior of the box body through a controllable isolation structure, and a control unit of the controllable isolation structure is provided with a communication interface. According to the invention, a quick-response temperature change environment can be provided for the test of the temperature sensor, so that the test efficiency is improved, and meanwhile, the stability of the test environment temperature is ensured.

Description

technical field [0001] The invention relates to temperature sensor testing technology. Background technique [0002] The general calibration method for temperature sensors is to put the sensor and platinum resistance thermometer together in a high and low temperature box, take the temperature measurement result of platinum resistance thermometer as the standard ambient temperature, and then calibrate the temperature sensor with reference to this standard ambient temperature. This calibration method does not have high requirements for the accuracy of the ambient temperature, but has high requirements for the stability of the ambient temperature and the temperature consistency of different locations. [0003] As the first existing technology, the structure of common high and low temperature box is as follows: figure 1 As shown, it is mainly composed of heating / cooling equipment, fans, and a test chamber. The hot / cold air generated by the heating / cooling equipment is blown int...

Claims

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Application Information

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IPC IPC(8): G01K15/00
CPCG01K15/002G01K15/007
Inventor 赵正超李文昌洪婷管娟娟
Owner 山东华科半导体研究院有限公司
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