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近年来,常采用压电陶瓷作为精密微调机构的传动源.它在导弹、激光频率调谐等方面都有广泛的应用.目前用在激光器上的压电陶瓷有国盘、园筒、园盘叠堆和园形弯板等几种.无论采用哪一种形式的压电陶瓷,器件工作者最关心的是压电常数,位移线性度和位移平行度.由于压电陶瓷的制造工艺复杂,质量很难严格控制.即使采用相同配方,相同工艺的产品,也很难保证这些参数完全相同.又由于老化等不稳定因素,因此,在使用前必须逐个挑选.本文就压电常数,位移线性度和位移平行度的测试,提供一种简单而实用的测试手段,可供工厂成批产品检验使用.
In recent years, the piezoelectric ceramic is often used as the transmission source of the fine tuning mechanism, which has a wide range of applications in the fields of missiles and laser frequency tuning, etc. The piezoelectric ceramics currently used in lasers include the national disk, Heap and garden curved plate, etc. No matter which type of piezoelectric ceramic is used, the most concern of the device workers is the piezoelectric constant, displacement linearity and displacement parallelism.Because the manufacturing process of the piezoelectric ceramic is complex, the quality It is difficult to strictly control even with the same formula, the same process products, it is difficult to ensure that these parameters are exactly the same, but also because of aging and other unstable factors, therefore, must be selected before use one by one.In this paper, the piezoelectric constant, displacement linearity And displacement parallelism test to provide a simple and practical test means for the factory batch product inspection.