Study of LGS crystal micro-resonators using flexure mode: Temperature-compensated cuts

In this paper, new experiments have been carried out on LGS crystal to highlight the existence of temperature compensated cuts for flexure vibration. The micro-resonators are square cross section tuning forks whose arms are vibrating in flexure-mode with clamped-free boundary conditions. Frequency versus temperature behaviors have been measured for several cut angles. The results of our experiments show that there is a first order temperature-compensated cut for Langasite crystal resonators vibrating in flexion at room temperature.