One-Millimeter Diameter Harmonic Ball Surface Acoustic Wave Gas Sensor with Temperature Compensation by Itself

Autor:	Bryan Maxey, Kazushi Yamanaka, Noritaka Nakaso, Nobuo Takeda, Toshihiro Tsuji, Dongyoun Sim, Naoya Iwata
Rok vydání:	2008
Předmět:	Materials science Physics and Astronomy (miscellaneous) Interdigital transducer Acoustics Harmonics Surface acoustic wave General Engineering Ball (bearing) General Physics and Astronomy Millimeter Surface acoustic wave sensor Fundamental frequency Temperature coefficient
Zdroj:	Japanese Journal of Applied Physics. 47:4070-4075
ISSN:	1347-4065 0021-4922
DOI:	10.1143/jjap.47.4070
Popis:	A newly designed 1-mm diameter harmonic ball surface acoustic wave (SAW) gas sensor has a double-electrode interdigital transducer (IDT) for driving multiple frequencies. The fundamental frequency is 80 MHz. The difference in delay time between a fundamental frequency component and a high harmonics was used to compensate temperature drift. A temperature coefficient of about 0.1 ppm/°C was obtained after compensation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::77eb3b05c136a6ca72339fa415e6a9d2 https://doi.org/10.1143/jjap.47.4070 Zobrazit plný text záznamu