公开(公告)号：US3721973A

公开(公告)日：1973-03-20

申请号：US3721973D

申请日：1969-12-15

Applicant: HONEYWELL INC

Inventor： SUNDBERT G ,  SWENSON E

IPC: G01P1/10 ,  G01P3/56 ,  G08B21/00

CPC classification number: G01P1/10 ,  G01P1/103 ,  G01P3/565

Abstract: The arrangement provides a novel method of selectively monitoring the hunt frequency of the synchronous spin motors of several gyros to determine the proper operation of the selected gyro. Two signals are used from each gyro for such monitoring action: (1) the phased winding voltage, and (2) the spin motor excitation voltage, of the split phase or two phase motor that drives the gyro rotor. Summing of the phased winding voltage and the excitation voltage for the line winding produces an amplitude modulated carrier wave, modulated proportional to the hunt phase shift of the rotor. The resultant modulation envelope is detected, filtered, band pass amplified and thereafter converted to a threshold logic voltage for an indication that the gyro spin motors are at synchronous speed.

Abstract translation: 该装置提供了一种选择性地监测几个陀螺仪的同步旋转马达的寻线频率以确定所选陀螺仪的正确操作的新颖方法。 从每个陀螺仪使用两个信号进行这种监测动作：（1）驱动陀螺转子的分相或两相电动机的相控绕组电压和（2）旋转电动机励磁电压。 相绕组电压和线绕组的激励电压的求和产生调幅载波，其调制成与转子的寻线相移成正比。 所得到的调制包络被检测，滤波，带通放大，然后转换成阈值逻辑电压，用于指示陀螺旋转电机处于同步速度。