Title :
Properties of Bleustein-Gulyaev waves in Li2B4O7 crystal
Author :
Soluch, Waldemar
Author_Institution :
Inst. of Electron. Mater. Technol., Warsaw
fDate :
31 Oct-3 Nov 1993
Abstract :
Properties of Bleustein-Gulyaev waves (BGW) in Li2B4O7 crystal were determined from the measured parameters of a delay line with double electrode interdigital parameters, and from the measured center frequency and insertion loss at the third harmonic, the BGW free surface velocity and the square of the electromechanical coupling coefficient were determined as 4921 m/s and 0.0027, respectively. The BGW in Li2B4 O7 crystal are very promising for high frequency filters and chemical sensor applications
Keywords :
lithium compounds; piezoelectric materials; piezoelectric oscillations; surface acoustic waves; ultrasonic velocity; Bleustein-Gulyaev waves; Li2B4O7; Li2B4O7 crystal; chemical sensor applications; delay line; double electrode interdigital parameters; electromechanical coupling coefficient; free surface velocity; high frequency filters; insertion loss; third harmonic; Chemical sensors; Crystals; Delay lines; Electrodes; Filters; Frequency; Metallization; Surface waves; Transducers; Velocity measurement;
Conference_Titel :
Ultrasonics Symposium, 1993. Proceedings., IEEE 1993
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-2012-3
DOI :
10.1109/ULTSYM.1993.339580
