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一、前言各类仪表中使用的弹性元件、频率元件,不仅要求它们具有优良的物理及力学性能,而且还要求其性能具有良好的时间稳定性。时间稳定性是考核仪表或材料的一个主要指标。当前对频率元件性能时间稳定性的研究尚在试验阶段,发展了一系列的老化处理的工艺。如对音叉进行90℃的老化处理;滤波器振子进行冷热循环的老化处理;对Ni_(43)CrTi以及ЭП218振子机加工后进行150℃,16～20h的处理,文献[3]、[4]的作者认为:在居里点温度以下进行低温回火可以提高其性能的稳定性。但是,对于老化处理增加元件性能的时间稳定性的机理以及在探求老化处理对性能影响规律方面,还未充分研究。
First, the preface Various types of instruments used in the elastic components, frequency components, not only requires them to have excellent physical and mechanical properties, but also requires its performance with good time stability. Time stability is one of the main indicators of the instrument or material. At present, the research on the time stability of the performance of frequency components is still in the experimental stage, and a series of aging processes have been developed. For example, the tuning fork is aged at 90 ℃, the filter oscillator is subjected to hot and cold cycle aging treatment, the Ni_ (43) CrTi and ЭП218 oscillator are machined at 150 ℃ for 16 ~ 20h, and the reference [3], [4 ] Author thinks: low temperature tempering below the Curie point temperature can improve the stability of its performance. However, the mechanism of the aging treatment to increase the time stability of the device performance and to explore the law of the aging process on the performance have not been fully studied.