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Non-contact temperature sensor

A temperature sensor, non-contact technology, used in instruments, scientific instruments, radiation pyrometry, etc., can solve the problems of poor sensor yield and errors, and achieve the effect of stable quality and the shape will not become larger

Active Publication Date: 2012-09-12
TATEYAMA KAGAKU KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] The infrared detector of Patent Document 1 has the following problems: errors occur in temperature detection due to variations in the external dimensions of the housing, etc., and the yield rate at the time of sensor manufacturing is poor.

Method used

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Examples

Experimental program
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Embodiment Construction

[0065] Next, an embodiment of the present invention will be described with reference to the drawings. The non-contact temperature sensor 10 of the present embodiment is a sensing module that receives infrared rays radiated from an object to be measured, and converts the energy of the infrared rays into electric signal. like figure 1 As shown, the non-contact temperature sensor 10 has: a flexible printed circuit board 12, a frame body 14 for accommodating the flexible printed circuit board 12, a wire 16 for taking out electrical signals from the flexible printed circuit board 12 to the outside of the frame body 14, a sliding Formula sensitivity adjustment component 18. Furthermore, on the flexible printed circuit board 12, the temperature-sensitive element 20a for infrared detections and the temperature-sensitive element 20b for temperature compensation which are not shown in figure are mounted.

[0066] The flexible printed circuit board 12 is made of a resin film that func...

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PUM

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Abstract

Disclosed is a non-contact temperature sensor which comprises a casing (14) having a top panel portion (34) constituting a shielding surface (34a) that shields infrared rays and a light guiding portion (40) that is formed by opening a part of the top panel portion (34) and that guides infrared rays into the casing. The non-contact temperature sensor further comprises a flexible printed circuit board (12) having a thermo-sensitive element (20a) for infrared detection and a thermo-sensitive element (20b) for temperature compensation and a sensitivity adjusting member (18) having an infrared shielding portion (18b) and capable of adjusting the position of the infrared shielding portion (18b) with respect to that of the thermo-sensitive element (20a) for infrared detection. The infrared shielding portion (18b) is positioned so as to face the thermo-sensitive element (20a) for infrared detection within an inner region of an open region (42) of the light guiding portion (40) except for an end portion in the moving directions of the sensitivity adjusting member (18). The sensitivity of the thermo-sensitive element (20a) for infrared detection can be adjusted by adjusting the position of the infrared shielding portion (18b) while the viewing angle of the thermo-sensitive element (20a) for infrared detection and the open area of the open region (42) are fixed.

Description

technical field [0001] The invention relates to a non-contact temperature sensor, which has a temperature sensing element for infrared detection and a temperature compensation temperature sensing element, detects infrared rays and measures temperature. Background technique [0002] The temperature sensor that measures the temperature of the object to be measured by the contact method is generally easy to wear the contact part, and the heat capacity of the heat sensitive element itself that is in contact with the object to be measured causes measurement errors. In addition, it is difficult to install a temperature sensor when the object to be measured is rotating or the like. Therefore, there is an increased demand for easy-to-use non-contact temperature sensors. [0003] As a method of non-contact temperature detection, the following method is used: the infrared rays emitted by the object to be measured are absorbed by an infrared absorber and converted into energy, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/02G01J5/04
CPCG01J5/02G01J5/0265G01J5/04G01J5/06G01J5/08G01J5/0831G01J5/0843G01J5/064
Inventor 竹内道雄木下正之
Owner TATEYAMA KAGAKU KOGYO KK