Radio signals for SAW ID tags and sensors in strong electromagnetic interference

Author

Pohl, A. ; Seifert, F. ; Reindl, L. ; Scholl, G. ; Ostertag, T. ; Pietsch, W.

Volume

1

fYear

1994

fDate

Oct. 31 1994-Nov. 3 1994

Firstpage

195

Abstract

The applicability of wirelessly interrogated passive ID-tag type SAW sensors for measurements of the temperature of disc brakes of moving railway cars is shown. Here, a short radio channel allows relatively simple radio impulse processing by phase evaluation. Further, using elastic convolver measurement in large steel works, we discuss the feasibility of passive SAW sensors in a severely obstructed radio channel with interference. For such environments radio signals of the spread spectrum type and a receiver with the corresponding correlative SAW structure or a RAKE receiver are appropriate for remote readout

Keywords

electromagnetic interference; identification; radiotelemetry; remote sensing; spread spectrum communication; surface acoustic wave correlation; surface acoustic wave sensors; temperature measurement; RAKE receiver; SAW ID tags; SAW sensors; correlative SAW structure; disc brake temperature measurement; elastic convolver measurement; electromagnetic interference; industrial applications; moving railway cars; phase evaluation; radio impulse processing; remote readout; severely obstructed radio channel; short radio channel; spread spectrum type; strong EMI; wireless interrogated passive sensors; Electromagnetic interference; Identification; Radio telemetry; Remote sensing; Spread spectrum communication; Surface acoustic wave correlators; Surface acoustic wave detectors; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1994. Proceedings., 1994 IEEE

Conference_Location

Cannes, France

Print_ISBN

0-7803-2012-3

Type

conf

DOI

10.1109/ULTSYM.1994.401578

Filename

401578