Measured properties of doubly rotated dilithium tetraborate (Li/sub 2/B/sub 4/BO/sub 7/) resonators and transducers

Author

Kosinski, John A. ; Ballato, Arthur ; Lu, Yicheng

Author_Institution

US Army LABCOM, Ft. Monmouth, NJ, USA

Volume

40

Issue

2

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

154

Lastpage

161

Abstract

Dilithium tetraborate plates, cut to the nominal angles of cut of (YXwl)40 degrees /33 degrees (TA-cut) and (YXwl)19 degrees /56 degrees (TC-cut), have been supplied by a crystal grower and have been processed into plate resonators. The mode spectra and electrical circuit parameters of the resonators have been examined for the fundamental, third, and fifth harmonics for all three thickness modes of the resonators. The observed values of frequency constants and piezoelectric coupling are in good agreement with the predicted values. The frequency-temperature behavior of the zero-temperature coefficient cuts has also been measured.<>

Keywords

crystal resonators; lithium compounds; piezoelectric transducers; ultrasonic transducers; TA-cut; TC-cut; doubly rotated Li/sub 2/B/sub 4/O/sub 7/; electrical circuit parameters; fifth harmonics; frequency constants; frequency-temperature behavior; mode spectra; piezoelectric coupling; plate resonators; thickness modes; third harmonics; transducers; zero-temperature coefficient cuts; Coupling circuits; Frequency measurement; Optical resonators; Piezoelectric transducers; Rotation measurement; Stability; Tellurium; Temperature measurement; Thermal expansion; Velocity measurement;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/58.212564

Filename

212564