公开(公告)号：US06324909B1

公开(公告)日：2001-12-04

申请号：US09431311

申请日：1999-11-02

Applicant: Stanley F. Wyse ,  Daniel A. Tazartes ,  Juergen K. P. Flamm ,  Charles A. Lee

Inventor： Stanley F. Wyse ,  Daniel A. Tazartes ,  Juergen K. P. Flamm ,  Charles A. Lee

IPC: G01P904

CPC classification number: G01C19/5705 ,  G01C19/5776

Abstract: A dithered Coriolis acceleration sensor system has a proof mass that is free of feedback in the accelerometer servo loop at the dither frequency by totally notching out all feedback torque at this frequency. The proof mass relative motion is then a direct measure of the rate because there is no feedback torque to alter the proof mass response to the acceleration. The feedback modulation system according to the invention captures the Coriolis-sensor output such that the phase and gain of the signal generated from the sensor are of no concern in maintaining good scale factor.

Abstract translation: 抖动的科里奥利加速度传感器系统具有通过在该频率下完全切断所有反馈转矩，以抖动频率在加速度计伺服回路中无反馈的证明质量。 因此，质量相对运动的质量是直接测量速率，因为没有反馈转矩来改变对加速度的质量响应。 根据本发明的反馈调制系统捕获科里奥利传感器输出，使得从传感器产生的信号的相位和增益在保持良好的比例因子方面是不必要的。

公开(公告)号：US5576534A

公开(公告)日：1996-11-19

申请号：US282754

申请日：1994-07-29

Applicant: Juergen K. P. Flamm ,  Daniel A. Tazartes

Inventor： Juergen K. P. Flamm ,  Daniel A. Tazartes

IPC: G01C19/72 ,  G01B9/02

CPC classification number: G01C19/728

Abstract: A digital controller produces control data signals for application to each of three fiber optic rotation sensors in a triaxial rotation sensing system. The digital controller also produces strobe signals corresponding to each fiber optic rotation sensor. The digital controller sequentially provides first, second and third strobe signals that activate the analog converters sequentially to apply modulating signals to the three fiber optic rotation sensors. The system further includes apparatus for providing modulation cycles to keep all three fiber optic rotation sensors active simultaneously. Sampling apparatus samples each sensor sequentially during a .tau. period and feedback modulation control data signals are applied sequentially to the three sensors during the .tau. period for each sensor when the sensor was sampled. Feedback modulation control data signals are isolated from each fiber optic rotation sensor except for the .tau. periods in which it is sampled.

Abstract translation: 数字控制器产生用于应用于三轴旋转感测系统中的三个光纤旋转传感器中的每一个的控制数据信号。 数字控制器还产生对应于每个光纤旋转传感器的选通信号。 数字控制器顺序提供第一，第二和第三选通信号，其顺序地激活模拟转换器以将调制信号施加到三个光纤旋转传感器。 该系统还包括用于提供调制周期以保持所有三个光纤旋转传感器同时有效的装置。 采样设备在tau周期期间依次对每个传感器进行采样，并且在传感器被采样时，每个传感器的τ周期期间，反馈调制控制数据信号被顺序地应用于三个传感器。 反馈调制控制数据信号与每个光纤旋转传感器隔离，除了其采样的τT周期。

公开(公告)号：US5983718A

公开(公告)日：1999-11-16

申请号：US892252

申请日：1997-07-14

Applicant: Stanley F. Wyse ,  Daniel A. Tazartes ,  Juergen K. P. Flamm ,  Charles A. Lee

Inventor： Stanley F. Wyse ,  Daniel A. Tazartes ,  Juergen K. P. Flamm ,  Charles A. Lee

IPC: G01C19/5705 ,  G01C19/5776 ,  G01P9/04

CPC classification number: G01C19/5705 ,  G01C19/5776

Abstract: A dithered Coriolis acceleration sensor system has a proof mass that is free of feedback in the accelerometer servo loop at the dither frequency by totally notching out all feedback torque at this frequency. The proof mass relative motion is then a direct measure of the rate because there is no feedback torque to alter the proof mass response to the acceleration. The feedback modulation system according to the invention captures the Coriolis-sensor output such that the phase and gain of the signal generated from the sensor are of no concern in maintaining good scale factor.

Abstract translation: 抖动的科里奥利加速度传感器系统具有通过在该频率下完全切断所有反馈转矩，以抖动频率在加速度计伺服回路中无反馈的证明质量。 因此，质量相对运动的质量是直接测量速率，因为没有反馈转矩来改变对加速度的质量响应。 根据本发明的反馈调制系统捕获科里奥利传感器输出，使得从传感器产生的信号的相位和增益在保持良好的比例因子方面是不必要的。

公开(公告)号：US5521555A

公开(公告)日：1996-05-28

申请号：US279509

申请日：1994-07-25

Applicant: Daniel A. Tazartes ,  John E. Higbee ,  Jacque A. Tazartes ,  Juergen K. P. Flamm ,  John G. Mark

Inventor： Daniel A. Tazartes ,  John E. Higbee ,  Jacque A. Tazartes ,  Juergen K. P. Flamm ,  John G. Mark

IPC: G01C19/72 ,  G01J1/44 ,  H03F3/08

CPC classification number: G01J1/44 ,  G01C19/721 ,  H03F3/082

Abstract: An amplifier topology for receiving signals output from a fiber optic rotation sensor and producing voltages that may be processed to determine the rotation rate includes a photodiode for receiving an optical signal and producing a corresponding electrical photodiode output signal. An ultra low noise and ultra low capacitance differential input stage is connected to receive the photodiode output signal. An operational amplifier having low noise and ultra-wide bandwidth is connected to the ultra low capacitance differential input stage to receive the output signal therefrom as a driving signal and to produce a low noise output signal. The differential input stage comprises a first amplifier circuit that includes a first transistor connected to the photodetector to act as a first buffer having low noise, low capacitance and unity gain. The first amplifier circuit also includes a second transistor configured as a first voltage follower connected between the output of the first buffer and the operational amplifier to isolate the output of the first buffer from parasitic capacitive loading from a biasing network. The differential input stage further comprises a second a second amplifier circuit that includes a third transistor having an input connected to a reference potential, the third transistor acting as a second buffer having low noise, low capacitance and unity gain. The second amplifier circuit also includes a fourth transistor configured as a second voltage follower connected between the output of the second buffer and the operational amplifier.

Abstract translation: 用于接收从光纤旋转传感器输出的信号并产生可被处理以确定旋转速率的电压的放大器拓扑包括用于接收光学信号并产生相应的光电二极管输出信号的光电二极管。 连接超低噪声和超低电容差分输入级，以接收光电二极管的输出信号。 具有低噪声和超宽带宽的运算放大器连接到超低电容差分输入级，以将其输出信号作为驱动信号接收并产生低噪声输出信号。 差分输入级包括第一放大器电路，其包括连接到光电检测器的第一晶体管，以充当具有低噪声，低电容和单位增益的第一缓冲器。 第一放大器电路还包括被配置为连接在第一缓冲器的输出端和运算放大器之间的第一电压跟随器的第二晶体管，以将第一缓冲器的输出与偏置网络的寄生电容负载隔离开来。 差分输入级还包括第二个第二放大器电路，其包括具有连接到参考电位的输入的第三晶体管，第三晶体管用作具有低噪声，低电容和单位增益的第二缓冲器。 第二放大器电路还包括被配置为连接在第二缓冲器的输出端和运算放大器之间的第二电压跟随器的第四晶体管。