Academic Journals Database
Disseminating quality controlled scientific knowledge

Acoustic sensor for remote measuring of pressure

Author(s): Karapetyan G. Ya. | Bagdasaryan A. S. | Kataev V. F. | Kataeva O. V.

Journal: Tekhnologiya i Konstruirovanie v Elektronnoi Apparature
ISSN 2225-5818

Issue: 2;
Start page: 31;
Date: 2008;
Original page

Keywords: surface acoustic waves | interdigital transducer | delay line | pressure sensors

The paper deals with sensors based on delay lines on surface acoustic waves (SAW), having a receiving-emitting and a reflective interdigital transducers (IDT). The dependence of the reflection coefficient of SAW on type and intensity of the load was studied. The authors propose a composite delay line in which the phase of the reflection coefficient depends on the pressure. Pressure leads to a shift of the reflective IDT relative to the transceiver, because they are located on different substrates. The paper also presents functional diagrams of the interrogator.
Affiliate Program      Why do you need a reservation system?