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US5932803A Counterbalanced triaxial multisensor with resonant accelerometers 失效
具有谐振加速度计的平衡三轴多传感器

Counterbalanced triaxial multisensor with resonant accelerometers
摘要:
A multisensor of the type that employs counteroscillating rotor-mounted accelerometers to measure both linear and Coriolis accelerations operates open loop to sense linear acceleration and closed loop to sense the Coriolis acceleration from angular rate inputs. Accelerometers mounted to arms of the counteroscillating rotors are designed so that the natural frequency of the proofmass with respect to the accelerometer frame closely approximates the resonant frequency .omega..sub.D of the driven rotor pair. A robust hinge design permits open loop operation for low frequency linear acceleration inputs without saturation. Low voltage closed-loop operation is made possible by the highly compliant nature of the resonant structure in responding to the much higher frequency Coriolis accelerations generated by angular rate inputs.
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