This paper shows that first order temperature compensated cut exists in Langasite rectangular cross-section beam vibrating in length extensional mode. Theoretical and experimental investigations of frequency-temperature effects are given.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1109/TUFFC.2007.599 | DOI Listing |
Micromachines (Basel)
April 2022
State Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, China.
In the harsh environment of high temperature and high rotation, a single parameter is difficult to satisfy the multi-parameter test requirements of aerospace metallurgy. Therefore, a multi-parameter coplanar integrated surface acoustic wave (SAW) sensor based on Langasite (LGS) is proposed. In this paper, the optimal cut for different measurement parameters is analyzed, and the optimal cut to temperature, pressure and vibration are obtained.
View Article and Find Full Text PDFRev Sci Instrum
July 2012
Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan.
A method for measuring elastic constants of piezoelectric materials at high temperature up to 1224 K is proposed. It determines all independent elastic constants by measuring resonance frequencies of a rectangular parallelepiped piezoelectric specimen contactlessly using its own piezoelectricity with an antenna. Without using conventional contacting piezoelectric transducers, vibrational sources are excited directly in the specimen by the oscillating electric field.
View Article and Find Full Text PDFIEEE Trans Ultrason Ferroelectr Freq Control
December 2007
This paper shows that first order temperature compensated cut exists in Langasite rectangular cross-section beam vibrating in length extensional mode. Theoretical and experimental investigations of frequency-temperature effects are given.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!