Title :
Determination of the piezoelectric constants of LGN, LGS, and LGT
Author :
Smythe, Robert C. ; Hague, G. Eric
Author_Institution :
Piezo Technol. Inc., Orlando, FL, USA
Abstract :
The piezoelectric constants of LGN (langanite, La3Ga 5.5Nb0.5O14), LGS (langasite, La3 Ga5SiO14) and LGT (langatate, La3Ga5.5Ta0.5O14) have been determined over a temperature range of -55°C to +125°C from measurements of the equivalent circuit parameters of suitably oriented plano-convex resonators. Apart from the piezoelectric temperature coefficients for LGT, which appear to be the first reported, the new values are compared with values previously reported
Keywords :
crystal resonators; gallium compounds; lanthanum compounds; piezoelectric materials; vibrations; -55 to 125 C; 3D model; La3Ga5.5Nb0.5O14; La3Ga5.5Ta0.5O14; La3Ga5SiO14; equivalent circuit parameters; langanite; langasite; langatate; motional capacitance; oriented plano-convex resonators; piezoelectric constants; piezoelectric temperature coefficient; sensitivity analysis; Capacitance measurement; Crystalline materials; Equations; Equivalent circuits; Frequency measurement; Harmonic analysis; Laboratories; Photonic crystals; Piezoelectric materials; Temperature distribution;
Conference_Titel :
Frequency Control Symposium and Exhibition, 2000. Proceedings of the 2000 IEEE/EIA International
Conference_Location :
Kansas City, MO
Print_ISBN :
0-7803-5838-4
DOI :
10.1109/FREQ.2000.887352
