UNSPECIFIED (2004) Towards a wireless microsystem for liquid analysis. In: IEEE Sensors 2004 Conference, OCT 24-27, 2004, Vienna Univ Technol, Vienna, AUSTRIA.

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Abstract

This paper describes both semi-wireless and wireless (433 MHz) liquid sensing systems based upon dual shear horizontal surface acoustic wave (SH-SAW) devices and introduces a novel design concept and a novel principle of detection. Each system comprises an uncoated passive SH-SAW device, a liquid microcell, a device antenna and an associated signal processing unit. The LiTaO3-based SH-SAW sensors have dual delay line configurations with different path lengths and the principle of detection being the attenuation and time delay between the signals. The sensors have no bio-chemical selective layer making them non-specific but create a robust/durable and low-cost system. This sensing system may be applied in the food/beverage industry, medical applications; a functionalized coating can be added for more specific biological application.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Series Name:	IEEE Sensors
Journal or Publication Title:	PROCEEDINGS OF THE IEEE SENSORS 2004, VOLS 1-3
Publisher:	IEEE
ISBN:	0-7803-8692-2
ISSN:	1930-0395
Editor:	Rocha, D and Sarro, PM and Vellekoop, MJ
Date:	2004
Number of Pages:	4
Page Range:	pp. 919-922
Publication Status:	Published
Title of Event:	IEEE Sensors 2004 Conference
Location of Event:	Vienna Univ Technol, Vienna, AUSTRIA
Date(s) of Event:	OCT 24-27, 2004
URI:	http://wrap.warwick.ac.uk/id/eprint/34209

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