Temperature on-line monitoring system of switchgear based on surface acoustic wave
GUO Jinchao
HE Chaofan
CAO Hong
ZHAO Zhongting
Abstract：Aiming at the problems of the traditional electric switchgear including the severe disturbance of the temperature measurement system by electromagnetic interference,the difficulty of lying line and the inconven-ience of energy supply,etc.,a temperature on-line monitoring system was built based on surface acoustic wave measurement technique. The system used planar inverted-F antenna alternative helical monopole antenna to optimize the structure of the antenna. It broke through the limitations of the short transmission distance of the original antenna of the data concentrator. The actual installation location of the sensor was adjusted to avoid signal cross interference to the greatest extent. The actual operation showed that the system worked stably with good results,effectively solving the problem of strong electromagnetic interference,meeting the accuracy re-quirements of on-line temperature monitoring of the switchgear.
Keywords：temperature on-line monitoringsurface acoustic wavewireless sensing distanceanti-interference
Publication Date：2018-03-02
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 70-75 )