论文信息 - Wireless, passive, resonant-circuit, inductively coupled, inductive strain sensor

Wireless, passive, resonant-circuit, inductively coupled, inductive strain sensor

This paper presents a non-contact, wireless, passive, inductively coupled strain sensor. The sensor itself is a parallel-connected LC tank circuit. Small geometric changes in a stressed solenoidal inductor were predicted to affect its inductance and as a consequence the resonant frequency of the LC circuit. Using a gate dip meter as a sensitive detector, this was experimentally confirmed. There was found to be a consistent relationship between relative strain with shifted resonant frequency independent of whether the sensor was embedded or not.

[1] William B. Spillman,et al. Noncontact power/interrogation system for smart structures , 1994, Smart Structures.

[2] Jerzy Weremczuk,et al. A non-contact passive electromagnetic transmitter to any capacitive sensor — design, theory, and model tests , 2000 .

[3] Craig A. Grimes,et al. Design and application of a wireless, passive, resonant-circuit environmental monitoring sensor , 2001 .

[4] D. K. Das-Gupta,et al. Modeling of dielectric relaxation spectra of polymers in the condensed phase , 1999 .

[5] K G Ong,et al. Monitoring of bacteria growth using a wireless, remote query resonant-circuit sensor: application to environmental sensing. , 2001, Biosensors & bioelectronics.

[6] K. Najafi,et al. A passive humidity monitoring system for in-situ remote wireless testing of micropackages , 2000, Proceedings IEEE Thirteenth Annual International Conference on Micro Electro Mechanical Systems (Cat. No.00CH36308).