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。