公开(公告)号：US4012941A

公开(公告)日：1977-03-22

申请号：US648817

申请日：1976-01-13

申请人： Erich Jucker ,  Yvan Greiner ,  Andre Lehmann

发明人： Erich Jucker ,  Yvan Greiner ,  Andre Lehmann

IPC分类号： G04D7/12

CPC分类号： G04D7/1207

摘要： A method of and apparatus for measuring the amplitude of oscillation of the balance of a timepiece movement having an escapement adapted for disengagement and engagement, successively, the balance having a predetermined angle of lift. The time intervals between successive disengagement and engagement are measured, as are the durations of vibration of the balance. The number of pulses of a first frequency which are produced during at least one of the measured time intervals is counted. The number of pulses of a second frequency produced during at least one of the vibration durations also is counted. The first and second frequencies have a predetermined relationship with respect to each other. The number of counted pulses of the second frequency is divided by the number of counted pulses of the first frequency to thereby attain a quotient which is equal to the amplitude of oscillation.

摘要翻译： 一种用于测量具有适于脱离和接合的擒纵机构的钟表机芯的平衡振动的振幅的方法和装置，依次具有预定的提升角度的平衡。 测量连续分离和接合之间的时间间隔以及天平的振动持续时间。 对在测量的时间间隔中的至少一个期间产生的第一频率的脉冲数进行计数。 在至少一个振动持续时间期间产生的第二频率的脉冲数也被计数。 第一和第二频率相对于彼此具有预定的关系。 将第二频率的计数脉冲数除以第一频率的计数脉冲数，从而得到等于振荡幅度的商。