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1. 发明授权

US3992664A Method for measuring parameters of quartz crystal unit and a non-reactive constant resistance element for carrying out the same 失效
标题翻译：用于测量石英晶体单元的参数的方法和用于执行其的无功恒定电阻元件
公开(公告)号：US3992664A
公开(公告)日：1976-11-16
申请号：US638914
申请日：1975-12-08
申请人： Issac Koga , Isao Okamoto , Shigeo Kobayashi
发明人： Issac Koga , Isao Okamoto , Shigeo Kobayashi
IPC分类号： G01R29/22 , G01R23/00
CPC分类号： G01R29/22
摘要： The present invention discloses a method of constructing a non-reactive high frequency constant resistance unit to be used for measuring parameters of quartz crystal units described in U.S. Pat. No. 3,832,631 and U.S. Pat. No. 3,872,385. First, a non-reactive frequency of a crystal unit A is determined, a radio-frequency current is supplied to the series circuit A+ B composed of said crystal unit A and a circuit B which is adjustable to non-reactiveness, and the circuit B is adjusted so that the phase of the terminal voltage across said series circuit A+B coincides with the phase of the terminal voltage across the circuit B. Next, said crystal unit A is replaced by an element A, whose construction is similar to the said circuit B, and is adjustable to non-reactiveness, and the element A is adjusted so that the phase of the terminal voltage across said series circuit A+B coincides with the phase of the terminal voltage across the circuit B. Lastly, the construction of A is fixed, whereby said element A is always available as a substitute for A, for checking the non-reactiveness of the circuit B.
摘要翻译：本发明公开了一种构成非反应性高频恒定电阻单元的方法，该单元用于测量美国专利No. 美国专利3,832,631和美国专利 3,872,385。首先，确定晶体单元A的非反应频率，将射频电流提供给由所述晶体单元A构成的串联电路A + B和可调整为非反应性的电路B，并且电路B 被调整为使得串联电路A + B两端的端子电压的相位与电路B两端的端子电压的相位一致。接下来，所述晶体单元A被元件A代替，元件A的结构类似于所述电路B，并且可调整为非反应性，并且调节元件A，使得跨过串联电路A + B的端子电压的相位与电路B两端的端子电压的相位一致。最后， A固定，由此所述元件A始终可用作A的替代物，用于检查电路B的非反应性。

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