Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Temperature measurement system and method

A technology of measuring device and equipment to be measured, applied in the field of temperature measurement system, can solve the problems of inaccurate temperature measurement, difference, affecting the accuracy of cold end temperature, etc., to achieve the effect of improving utilization rate and ensuring sampling accuracy

Inactive Publication Date: 2017-08-29
SHENZHEN HUICHUAN CONTROL TECH
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the device under test is far away from the measuring device, the actual cold junction temperature T1 of the thermocouple (the end of the thermocouple connected to the measuring device through a lead wire) and the cold junction temperature T2 of the measuring device (that is, the thermoelectricity of the signal processing circuit of the measuring device) Even signal input terminal) is different
At this time, if calculated according to T2, it will lead to the problem of inaccurate temperature measurement.
In addition, if the temperature sensor is set on the input terminal of the thermocouple signal, a temperature measurement channel needs to be occupied; if the temperature sensor is placed on the PCB board inside the measuring device, the temperature rise on the board will affect the accuracy of the cold junction temperature. Sex, also lead to inaccurate temperature measurement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Temperature measurement system and method
  • Temperature measurement system and method
  • Temperature measurement system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0051] figure 1 Shown is a schematic diagram of a temperature measurement system provided by an embodiment of the present invention. Such as figure 1 As shown, the temperature measurement system of the present invention includes a thermocouple sampling module 10, a thermal resistance sampling module 20, a measuring device 30, and a temperature sensor 40.

[0052] In an embodiment of the present invention, the thermocouple sampling module 1...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a temperature measurement system and method. The system comprises a thermocouple sampling module, a thermal resistance sampling module, a measurement device and a temperature sensor. The thermocouple sampling module is used for collecting a thermocouple voltage signal of detected equipment. The thermal resistance sampling module is used for collecting a thermal resistance voltage signal of a cold end of the thermocouple sampling module. The temperature sensor is used for collecting the internal cold end temperature signal of the measurement device. The measurement device is used for selecting a cold end temperature compensation mode, and calculates the temperature of the detected equipment in the selected cold end temperature compensation mode. The invention also provides a temperature measurement method. The remote sampling employs the external compensation for guaranteeing the sampling precision. The short-distance sampling employs the internal compensation, thereby releasing one more sampling channel.

Description

Technical field [0001] The invention relates to the technical field of temperature measurement, in particular to a temperature measurement system and method. Background technique [0002] In the field of industrial control, many electrical control equipment need to detect temperature signals in order to realize the functions of monitoring, protection and control adjustment of the equipment. At present, the most widely used temperature detection element is a thermocouple. A thermocouple is a temperature sensor made of the junction of two different metal conductors. It is a device that converts temperature into voltage and can be used to measure physical quantities such as temperature. The measurable temperature range is large. As a sensor with high accuracy, simple structure, wide temperature measurement range, and small inertia, thermocouples are widely used. [0003] A thermocouple includes a hot end and a cold end. The hot end is also called the measurement end, which is the en...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/13G01K7/16
CPCG01K7/13G01K7/16
Inventor 姜洪宇
Owner SHENZHEN HUICHUAN CONTROL TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products