Online temperature measurement system based on passive wireless sound surface wave sensors

A surface acoustic wave, passive wireless technology, used in thermometers, instruments, thermometers, etc. with physical/chemical changes, can solve the problem of high requirements on insulation and anti-electromagnetic interference, lack of universal adaptability of temperature measurement methods, The operating temperature is not easy to monitor and other problems, to achieve the effect of good insulation and anti-electromagnetic interference, reducing safety hazards and simple structure

Inactive Publication Date: 2015-12-16
NANJING UNIV OF SCI & TECH
View PDF3 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the temperature measurement methods of power equipment can be summarized as: thermocouple, infrared temperature measurement, fiber optic grating, active wireless, which have problems such as various types of power equipment, complex structure, strong electromagnetic interference, etc., resulting in the lack of universal

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
  • Online temperature measurement system based on passive wireless sound surface wave sensors
  • Online temperature measurement system based on passive wireless sound surface wave sensors
  • Online temperature measurement system based on passive wireless sound surface wave sensors

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0014] Combine figure 1 , An online temperature measurement system based on a passive wireless surface acoustic wave sensor of the present invention includes a core control module 2, several identical passive surface acoustic wave sensors 1, a wireless radio frequency transmitting module 3, and a radio frequency receiving module 4, The radio frequency switch 5, the first antenna 6, the second antenna 7, the display 8, the sound and light alarm device 9, and the memory 10, the radio frequency transmitting module 3, the radio frequency receiving module 4, the radio frequency switch 5, the display 8, the sound and light alarm The device 9 and the memory 10 are all connected to the core control module 2. The radio frequency transmitting module 3, the radio frequency receiving module 4 and the first antenna 6 are all connected to the radio frequency switch 5. Each passive surface acoustic wave sensor 1 is connected to the corresponding first antenna. Two antennas 7 are connected;

[0...

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 an online temperature measurement system based on passive wireless sound surface wave sensors. The system comprises a core control module, the passive sound surface wave sensors, a wireless radiofrequency emitting module, a wireless radiofrequency receiving module and a storage display module. The core control module controls the wireless radiofrequency emitting module to generate radiofrequency pulse signals, the signals are emitted through an apparatus antenna, and the passive sound surface wave sensors, after receiving the radiofrequency pulse signals, emit the radio frequency pulse signals comprising inside temperature information of power equipment through sensor antennas. The wireless radiofrequency receiving module receives and modulates the radiofrequency pulse signals to obtain temperature signals, the core control module processes the temperature signals by use of an adaptive filtering algorithm, a result is displayed through a display, and in case of temperature abnormities, an acousto-optic alarm apparatus generates an acousto-optic alarm. Compared to the prior art, the online temperature measurement system has good insulation and anti-electromagnetic interference performance and solves the problem of difficulty in monitoring a contact operation temperature inside such power equipment as a switch cabinet, a transformer and the like.

Description

technical field [0001] The invention belongs to the field of electric passive wireless temperature measurement, in particular to an online temperature measurement system based on a passive surface acoustic wave sensor. Background technique [0002] The safety and operational efficiency of the power system are related to the development of the entire national economy and the stability of people's lives. Condition monitoring of power equipment is the most effective method to ensure safe operation of power grid and optimal utilization of power system resources, and temperature is one of the most important data for condition monitoring of power equipment. An abnormal rise in the local temperature of the power equipment means that a short circuit or insulation aging may occur. By monitoring the temperature of the power equipment, the operation of the power equipment can be understood in real time, and the hidden danger can be found and dealt with as soon as a hidden danger occurs...

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
IPC IPC(8): G01K11/22
Inventor 王艳周健方斌曹浩宋金龙周雪莹孙美玲周炜
Owner NANJING UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap