发明名称 |
FAULT DETECTION USING SKEWED TRANSDUCERS |
摘要 |
A vibratory gyroscope is provided comprising a plurality of secondary pickoff transducers which are each sensitive to the secondary response mode, wherein: at least two of the secondary pickoff transducers comprise skew transducers designed to be sensitive to the primary mode which produce an induced quadrature signal in response thereto. A method of using the gyroscope is provided comprising the steps of arranging electrical connections between the secondary pickoff transducers and a pickoff amplifier so that in use the induced quadrature signal is substantially rejected by the amplifier in the absence of a fault condition, and the amplifier outputs an induced quadrature signal when a fault condition disconnects one of the skew transducers from the amplifier, and a comparator compares the quadrature output from the pickoff amplifier with a predetermined threshold value and provides a fault indication when the predetermined threshold is exceeded. |
申请公布号 |
US2014338449(A1) |
申请公布日期 |
2014.11.20 |
申请号 |
US201214361437 |
申请日期 |
2012.11.27 |
申请人 |
Atlantic Inertial Systems Limited ;Sumitomo Precision Products Company Limited |
发明人 |
Durston Michael;Moriguchi Takafumi;Araki Ryuta |
分类号 |
G01C19/5684 |
主分类号 |
G01C19/5684 |
代理机构 |
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代理人 |
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主权项 |
1. A vibratory gyroscope comprising a plurality of secondary pickoff transducers which are each sensitive to the secondary response mode, wherein:
at least two of the secondary pickoff transducers comprise skew transducers designed to be sensitive to the primary mode which produce an induced quadrature signal in response thereto. |
地址 |
Plymouth GB |