A wireless surface acoustic wave temperature sensor using langasite as substrate material for high-temperature applications

Shou Qi Wang; Jiro Harada; Satoshi Uda

doi:10.1143/jjap.42.6124

A wireless surface acoustic wave temperature sensor using langasite as substrate material for high-temperature applications

Shou Qi Wang, Jiro Harada, Satoshi Uda

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

Abstract

A wireless surface acoustic wave (SAW) temperature sensor was produced using langasite single crystal as a piezoelectric substrate. The properties of both solid-electrode and split-electrode interdigital transducers (IDTs) were studied by fitting the admittance curves. A miniature antenna was used and the impedance matching technique between the antenna and the IDT was investigated. The temperature characteristic in the temperature range of 20-700°C was measured. The results showed that both the SAW chip and the antenna functioned in this temperature range.

Original language	English
Pages (from-to)	6124-6127
Number of pages	4
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	42
Issue number	9 B
DOIs	https://doi.org/10.1143/jjap.42.6124
Publication status	Published - 2003 Sep
Externally published	Yes

Keywords

Langasite
SAW
Sensor
Wireless

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/jjap.42.6124

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A wireless surface acoustic wave temperature sensor using langasite as substrate material for high-temperature applications. / Wang, Shou Qi; Harada, Jiro; Uda, Satoshi.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 42, No. 9 B, 09.2003, p. 6124-6127.

Research output: Contribution to journal › Article › peer-review

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