发明名称 |
Signal conditioning to provide optimum gain and noise reduction for resonator fiber optic gyroscopes |
摘要 |
A resonator fiber optic gyroscope includes a first light source configured to generate a light signal. A resonator element is configured to generate a optical signal based on the light signal. A photodetector is configured to generate a first electrical signal based on the optical signal. The first electrical signal includes an oscillating signal, a direct-current (DC) signal, an even-harmonic signal including components at even harmonics of the oscillating signal, and an odd-harmonic signal including components at odd harmonics of the oscillating signal. A filtering element is configured to attenuate the DC signal, at least one even-harmonic component, and an odd-harmonic component to produce a second electrical signal. An amplifier is configured to amplify the second electrical signal. An analog-to-digital converter (ADC) is configured to digitize the amplified second electrical signal. |
申请公布号 |
EP2228624(B1) |
申请公布日期 |
2014.02.12 |
申请号 |
EP20090180718 |
申请日期 |
2009.12.23 |
申请人 |
HONEYWELL INTERNATIONAL INC. |
发明人 |
STRANDJORD, LEE;TARLETON, NORMAN GERARD;ENZONE, STEPHAN |
分类号 |
G01C19/72 |
主分类号 |
G01C19/72 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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