电子元件与材料2024，Vol.43Issue(5)：612-616,5.DOI:10.14106/j.cnki.1001-2028.2024.1539
基于Chip-on-TEC的高精度晶体振荡器研究
Research on the quartz crystal oscillator with high frequency stability based on Chip-on-TEC method
摘要
Abstract
The primary means of improving frequency stability of a crystal oscillator is to maintain a stable temperature.Based on the constant temperature characteristics of thermoelectric coolers,a high-precision crystal oscillator design was proposed by using the Chip-on-TEC method.By using multi-physics simulation software,a complete finite element multiphysics simulation model was established for a 32.768 kHz quartz tuning fork.The simulation results show that the resonant frequency of the quartz crystal is exactly the same as that of commercial products.The temperature difference is as low as 0.008 ℃,and the corresponding frequency stability is only 5.4×10-9.The proposed method provides a direction for designing high stability crystal oscillators using low-precision cut type quartz crystals,which addresses the difficulty in obtaining high-precision cut-type crystal materials.关键词
石英晶体/音叉谐振器/谐振频率/有限元/多物理场仿真Key words
quartz crystal/tuning fork resonator/resonant frequency/FEM/multiphysics simulation分类
信息技术与安全科学引用本文复制引用
刘文林,宋玉琢,魏文菲,吕强,徐建,陈明祥,黄大勇..基于Chip-on-TEC的高精度晶体振荡器研究[J].电子元件与材料,2024,43(5):612-616,5.基金项目
国家自然科学基金(61404095) （61404095）
湖北省重点研发计划(2021BAA213) （2021BAA213）
