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Closed-loop liquid floated accelerometer

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Speedometer works: When the instrument housing along the input shaft for accelerated motion detection quality due to inertia around the output shaft, the sensing element is converted into an electrical signal to the corner, after amplification is fed into the closed loop torque control . Feedback moment and testing the quality of the moment of inertia moment being generated equilibrium. Torque is delivered to the electrical signal (the current size or the number of pulses per unit time) was used to measure the magnitude and direction of acceleration. Pendulum assembly on a float, float buoyancy resulting liquid components can be placed on removable float jewel bearing loads, reducing bearing friction torque, improved meter accuracy. Floating liquid can not play the role of a fixed axis, so the precision pendulum accelerometer, the method also uses magnetic levitation unloading buoy has been placed in the center of the suspension assembly, it is supported out of contact with the further eliminate the friction torque. Viscous floating liquid component of pendulum damping effect, can reduce the dynamic error and improve resistance to vibration and impact. Bellows to compensate for volume changes caused by temperature floating in liquid. In order to make the proportion of floating liquid viscosity remained unchanged to ensure the stability of the instrument's performance, generally require strict temperature control device.
Want to know more information about the speedometer, you are welcome to inquire.

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