公开(公告)号：US10705112B1

公开(公告)日：2020-07-07

申请号：US16391074

申请日：2019-04-22

申请人： Honeywell International Inc.

发明人： Joshua Dorr ,  Chad Fertig ,  Arthur Savchenko ,  Neil Krueger ,  Steven Tin

IPC分类号： G01P15/00 ,  G01B11/02 ,  H04J14/02 ,  H01S5/00

摘要： An optomechanical device comprising a circuit configured to generate an optical signal using a tuning signal and modulate the optical signal at a frequency corresponding to one quarter of a Full Width at Half Maximum (FWHM) of an optical resonance of the proof mass assembly to generate a partially modulated optical signal. The circuit being further configured to filter the partially modulated optical signal to remove a central carrier from the partially modulated optical signal to generate a filtered optical signal, modulate the filtered optical signal to generate a modulated optical signal driven to the mechanical resonance of the proof mass assembly, and generate the tuning signal using a difference between a DC intensity level of a first optical frequency component in the modulated optical signal and a DC intensity level of a second optical frequency component in the modulated optical signal.

公开(公告)号：US09983225B2

公开(公告)日：2018-05-29

申请号：US14996116

申请日：2016-01-14

申请人： Honeywell International Inc.

发明人： Chad Fertig ,  Arthur Savchenko ,  Steven Tin

IPC分类号： G01P15/093 ,  G01P15/097 ,  G01P21/00 ,  H01S5/00 ,  H01S5/0687

CPC分类号： G01P15/093 ,  G01P15/097 ,  G01P21/00 ,  H01S5/0014 ,  H01S5/0085 ,  H01S5/0687

摘要： Systems, devices, techniques, and methods are disclosed for an opto-mechanical vibrating beam accelerometer. In one example, a system is configured to couple a laser into optical resonance with opto-mechanically active (OMA) anchors suspending a proof mass; lock frequencies of the laser to optical resonances of the OMA anchors, resulting in a modulated laser coupled with the OMA anchors; demodulate a photocurrent that detects the modulated laser coupled with the OMA anchors to detect at least an amplitude or a phase of the modulated laser; lock a frequency of the modulated laser to dynamically track instantaneous resonance frequencies of mechanical modes of the OMA anchors through changes to the amplitude or phase of the modulated laser induced by coupling of the modulated laser to the OMA anchors; and measure an acceleration based on instantaneous resonance frequencies of the OMA anchors through changes to the amplitude or phase of the modulated laser.

公开(公告)号：US20160377647A1

公开(公告)日：2016-12-29

申请号：US14996116

申请日：2016-01-14

申请人： Honeywell International Inc.

发明人： Chad Fertig ,  Arthur Savchenko ,  Steven Tin

IPC分类号： G01P15/093 ,  H01S5/0687 ,  G01P21/00 ,  H01S5/00

CPC分类号： G01P15/093 ,  G01P15/097 ,  G01P21/00 ,  H01S5/0014 ,  H01S5/0085 ,  H01S5/0687

摘要： Systems, devices, techniques, and methods are disclosed for an opto-mechanical vibrating beam accelerometer. In one example, a system is configured to couple a laser into optical resonance with opto-mechanically active (OMA) anchors suspending a proof mass; lock frequencies of the laser to optical resonances of the OMA anchors, resulting in a modulated laser coupled with the OMA anchors; demodulate a photocurrent that detects the modulated laser coupled with the OMA anchors to detect at least an amplitude or a phase of the modulated laser; lock a frequency of the modulated laser to dynamically track instantaneous resonance frequencies of mechanical modes of the OMA anchors through changes to the amplitude or phase of the modulated laser induced by coupling of the modulated laser to the OMA anchors; and measure an acceleration based on instantaneous resonance frequencies of the OMA anchors through changes to the amplitude or phase of the modulated laser.

摘要翻译： 公开了用于光机械振动束加速计的系统，装置，技术和方法。 在一个示例中，系统被配置为将激光器耦合到光学谐振与悬挂证明质量块的光机械活动（OMA）锚点; 将激光器的频率锁定到OMA锚的光学谐振，导致与OMA锚固器耦合的调制激光器; 解调光电流，其检测与OMA锚点耦合的调制激光器以检测调制激光器的至少一个振幅或相位; 锁定调制激光器的频率，通过将调制的激光器与OMA锚固器的耦合引起的调制激光器的振幅或相位的变化来动态跟踪OMA锚点的机械模式的瞬时谐振频率; 并且通过改变调制激光器的振幅或相位来测量基于OM​​A锚点的瞬时谐振频率的加速度。