A resonant printed-circuit sensor for remote query monitoring of environmental parameters

被引：82

作者：

Ong, KG ^{[1
]}

Grimes, CA ^{[1
]}

机构：

[1] Univ Kentucky, Dept Elect Engn, Lexington, KY 40506 USA

来源：

SMART MATERIALS & STRUCTURES | 2000年 / 9卷 / 04期

关键词：

Antennas - Atmospheric humidity - Capacitors - Electric inductors - Natural frequencies - Phase transitions - Pressure - Printed circuit boards - Resonant circuits;

D O I：

10.1088/0964-1726/9/4/305

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A new type of remote query sensor for monitoring pressure, relative humidity, and phase-transitions is presented. The sensor consists of a planar inductor-capacitor resonant circuit, the resonant frequency of which changes in response to different environmental parameters. The sensor does not require an internal power source, rather it responds to the interrogation field. A loop antenna is used to monitor the sensor.

引用

页码：421 / 428

页数：8

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