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

High-frequency response double-thread thermocouple

A thermocouple, high-frequency response technology, applied in the direction of measuring heat, using thermometers with electrical/magnetic components directly sensitive to heat, using electrical devices, etc., can solve problems such as the inability to meet the needs of dynamic temperature measurement

Inactive Publication Date: 2009-05-13
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In a turbulent flame, the frequency of temperature fluctuations can reach up to 10 3 ~10 4 Hz, so most thermocouples (maximum response frequency 20-100Hz) cannot meet the needs of dynamic 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
  • High-frequency response double-thread thermocouple
  • High-frequency response double-thread thermocouple
  • High-frequency response double-thread thermocouple

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] In order to accurately measure the dynamic temperature of the turbulent flame, the invention provides a double-wire thermocouple, which compensates the dynamic error by using the correction method of the time constant, so that the average temperature and the fluctuating temperature of the flame flow field can be accurately measured.

[0017] Fig. 1 and Fig. 2 are respectively the overall structure schematic diagrams of two structural forms (straight type and curved type) of the high-response double-wire thermocouple of the present invention. Referring to FIG. 1 , it can be seen that the present invention mainly includes two sections of parallel even wires, wherein each section of even wires is composed of thin even wires 2 and thick even wires 3 . The thin wires 2 of different materials are butt-welded to form a hot junction 1, and the two ends of the butt-welded thin wires 2 are respectively welded to the thick wires 3 of the same material. The thick even wire 3 is mad...

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 relates to a high-frequency response double-wire thermocouple, in particular to the double-wire thermocouple capable of accurately measuring fluctuating temperature. Two temperature voltage signals can be output simultaneously by two parallel butt-welded thermocouple wire structures made of different materials. Time constants of temperature measurement points of the two thermocouple wires can be accurately obtained by the maximum correlation analysis on the two signals or the minimization analysis on a difference value between the two signals. Then, an energy balance equation of the temperature measurement points is directly solved by the time constants, thus obtaining the real dynamic temperature of a measured media.

Description

technical field [0001] The invention relates to the technical field of temperature measurement, and is a high-frequency response temperature measurement element for turbulent flame pulsation temperature measurement, and a double-wire thermocouple capable of dynamically compensating temperature measurement signals to accurately measure pulsation temperature. Background technique [0002] Thermocouples are currently the most commonly used and most widely used temperature measurement components for temperature measurement in scientific research and production processes in various countries. Since the hot junction of the thermocouple has a certain heat capacity, after the hot junction absorbs heat from the medium, it takes a certain amount of time to heat itself to increase the temperature to a stable value, and it always lags behind the change of the temperature of the measured medium in time, that is, the measured The indicated temperature always lags behind the actual tempera...

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): G01K7/02H01L35/32H10N10/17
Inventor 穆克进张哲巅惠鑫王岳肖云汉
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com