UNSPECIFIED. (2003) Radiated fields of capacitive micromachined ultrasonic transducers in air. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 114 (3). pp. 1435-1449. ISSN 0001-4966

Full text not available from this repository.

Abstract

This paper presents a study of the radiated ultrasonic fields of capacitive micromachined ultrasonic transducers (often referred to as cMUTs) in air. These fields were modeled theoretically and then compared to the experimental near-field amplitude variations and directivity patterns of square cMUTs. The good agreement between theory and experiment indicates that the devices can be approximated to plane piston radiators. The fields of multiple elements driven in phase on the same silicon substrate are presented, where again comparison is made to theory. The results indicate that individual elements are unaffected by radiation through the silicon substrate from adjacent devices. It will also be demonstrated that it is possible to use the knowledge of these fields to develop air-coupled ultrasonic surface imaging systems. (C) 2003 Acoustical Society of America.

Item Type:	Journal Article
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Journal or Publication Title:	JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
Publisher:	ACOUSTICAL SOC AMER AMER INST PHYSICS
ISSN:	0001-4966
Date:	September 2003
Volume:	114
Number:	3
Number of Pages:	15
Page Range:	pp. 1435-1449
Identification Number:	10.1121/1.1604120
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/9325

Data sourced from Thomson Reuters' Web of Knowledge

Request changes to a record

Actions (login required)

View Item