Small-volume and high-precision temperature measurement module

A temperature measurement module, high-precision technology, applied in thermometers, measuring devices, measuring heat, etc., can solve problems such as limiting the temperature measurement accuracy of thermal resistance measuring instruments, reduce labor costs and time costs, small size, and good consistency Effect

Inactive Publication Date: 2018-05-22
GUIZHOU AEROSPACE ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This greatly limits the temperature measurement accuracy of the thermal resistance measuring instrument, as well as the application environment

Method used

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  • Small-volume and high-precision temperature measurement module
  • Small-volume and high-precision temperature measurement module
  • Small-volume and high-precision temperature measurement module

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Embodiment Construction

[0023] The technical solution of the present invention is further described below, but the scope of protection is not limited to the description.

[0024] like figure 2 , image 3 The present invention shown is composed of a cavity 1 , a cover plate 2 , a quick-lock connector 3 , a first printed board assembly 4 , a wall-through cable 5 and a second printed board assembly 6 .

[0025] The first printed board assembly 4 and the second printed board assembly 6 are fixed in different cavities in the cavity 1 by screws, and the first printed board assembly 4 and the second printed board assembly 6 are connected by a through-wall cable 5 Make electrical connections. The first printed board assembly 4 supplies power through the quick-lock connector 3 and provides temperature measurement voltage value output. The quick-lock connector 3 is fixed on the cavity 1 through a lock nut. The cover plate 2 is fixed on the top of the cavity by screws to prevent external extraneous matter ...

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PUM

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Abstract

The invention provides a small-volume and high-precision temperature measurement module, which comprises a cavity body, a cover plate, a fast locking-type connector, a first printed circuit board assembly, a through-wall cable and a second printed circuit board assembly, wherein the first printed circuit board assembly and the second printed circuit board assembly are fixed in different cavities in the cavity body through screws; the first printed circuit board assembly and the second printed circuit board assembly are electrically connected through the through-wall cable; according to the first printed circuit board assembly, power is supplied through the fast locking-type connector, and a temperature measurement voltage value is provided for being outputted; the fast locking-type connector is fixed on the cavity body through a fastening nut; the cover plate is fixed at the top part of the cavity body through a screw, thereby preventing an external reminder from entering the temperature measurement module; and four mounting holes are distributed around the cavity body. The small-volume and high-precision temperature measurement module is free of debugging, the labor cost and the time cost are greatly reduced, the volume is small, mounting and use are facilitated, the amplitude and the slope of outputted temperature-voltage signals are adjustable, the driving ability is strong,and the small-volume and high-precision temperature measurement module can be directly used by a temperature control system chip such as a PLC and a single chip microcomputer.

Description

technical field [0001] The invention relates to a small volume and high precision temperature measuring module. Background technique [0002] At present, the temperature measuring equipment with a wide temperature range is usually a thermal resistance measuring instrument, and its temperature sensor is usually a platinum resistance. The temperature rises and increases at a constant speed. Due to the poor accuracy of the two-wire system for measuring the resistance of platinum resistance, thermal resistance measuring instruments often use a three-wire measurement method, such as figure 1 As shown, R△ is the resistance value of the platinum resistor, Ra, Rb, and Rc are the resistance values ​​of the three wires connected to the platinum resistor, and R1, R2, R3, and R4 form a bridge. Ue is the power supply voltage. By detecting the voltage value of Uo, the resistance value of the platinum resistor R△ can be calculated, and then the ambient temperature can be calculated. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/16
CPCG01K7/16G01K2007/163
Inventor 张辉
Owner GUIZHOU AEROSPACE ELECTRONICS TECH CO LTD
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