A2.1 Contributions to Acoustic Loss in Langasite, Langatate, and Catangasite Resonators at High Temperatures
- SMSI 2020
(did not take place because of Covid-19 virus pandemic)
- SMSI 2020 - Sensors and Instrumentation
- A2 Piezoelectric High-temperature Sensors
- W. Johnson - National Institute of Standards and Technology, Boulder (USA)
- 49 - 50
Piezoelectric crystals in the langasite family can serve as a basis for resonant acoustic sensors that operate at temperatures exceeding the range of conventional piezoelectric resonators, but their per-formance is limited by acoustic loss at elevated temperatures. This paper presents an overview of what is currently known and not known about physical contributions to temperature-dependent acous-tic loss in langasite, langatate, and catangasite.