2.45 GHz passive wireless temperature monitoring system featuring parallel sensor interrogation and resolution evaluation

J. H. Kuypers, Shuji Tanaka, Masayoshi Esashi, D. A. Eisele, L. M. Reindl

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

We report on the development of a TDMA (time division multiple access) based wireless sensor system for temperature monitoring. The transponders consisting of passive surface acoustic wave delay line sensors were designed for operation in the ISM band at 2.45 GHz and for a temperature range from -20 °C to 180 °C. A multi-step evaluation scheme using a combined delay and phase analysis, is introduced. A temperature resolution of 0.19 K (6σ) was achieved at a transmission power of+2 dBm (1.59 mW), when the distance between the transceiver and sensors was about 140 cm. We also report the importance of mounting the sensors during packaging based on experimental results.

Original languageEnglish
Title of host publication2006 5th IEEE Conference on Sensors
Pages773-776
Number of pages4
DOIs
Publication statusPublished - 2006 Dec 1
Event2006 5th IEEE Conference on Sensors - Daegu, Korea, Republic of
Duration: 2006 Oct 222006 Oct 25

Publication series

NameProceedings of IEEE Sensors

Other

Other2006 5th IEEE Conference on Sensors
CountryKorea, Republic of
CityDaegu
Period06/10/2206/10/25

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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