发明名称 |
Synchronous radiation-hardened fiber optic gyroscope |
摘要 |
<p>A synchronous fiber optic gyroscope includes a light source, an optical coupler in optical communication with the light source, an optical modulator in optical communication with the coupler, and a fiber optic coil in optical communication with the modulator. A detector is configured to receive an optical signal from the coupler and convert the optical signal to an electrical signal. A loop closure signal processor has a first input configured to receive the electrical signal from the detector. A phase lock loop has an output operatively connected to a second input of the processor. A direct digital synthesizer is operatively coupled to an input of the phase lock loop, with the synthesizer configured to generate a low-frequency signal that is transmitted to the phase lock loop. The phase lock loop converts the low-frequency signal to a high-frequency signal that is transmitted to the second input of the processor, and the phase lock loop provides signal modulation that is synchronous with signal demodulation.</p> |
申请公布号 |
EP2351984(B1) |
申请公布日期 |
2014.12.17 |
申请号 |
EP20100187299 |
申请日期 |
2010.10.12 |
申请人 |
HONEYWELL INTERNATIONAL INC. |
发明人 |
TARLETON, NORMAN GERARD;ENZONE, STEPHAN;DOHENY, DAVID A.;MEAD, DEREK |
分类号 |
G01C19/72 |
主分类号 |
G01C19/72 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|