ArticleSensors (Basel, Switzerland)2017
A New Scale Factor Adjustment Method for Magnetic Force Feedback Accelerometer.
Article in Sensors (Basel, Switzerland), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Kuhn-Munkres Algorithm-Based Matching Method and Automatic Device for Tiny Magnetic Steel Pair.Micromachines · 2021Article
- Design of a Carrier Wave for Capacitive Transducer with Large Dynamic Range.Sensors (Basel, Switzerland) · 2020Article
- The Dead Time Characterization Method of Quartz Flexure Accelerometers Using Monotonicity Number.Sensors (Basel, Switzerland) · 2019Article
- Study on Misalignment Angle Compensation during Scale Factor Matching for Two Pairs of Accelerometers in a Gravity Gradient Instrument.Sensors (Basel, Switzerland) · 2018Article
- Tuning the Stiffness Balance Using Characteristic Frequencies as a Criterion for a Superconducting Gravity Gradiometer.Sensors (Basel, Switzerland) · 2018Article
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Authors and funding
6 authors.
Funding
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Abstract
A new and simple method to adjust the scale factor of a magnetic force feedback accelerometer is presented, which could be used in developing a rotating accelerometer gravity gradient instrument (GGI). Adjusting and matching the acceleration-to-current transfer function of the four accelerometers automatically is one of the basic and necessary technologies for rejecting the common mode accelerations in the development of GGI. In order to adjust the scale factor of the magnetic force rebalance accelerometer, an external current is injected and combined with the normal feedback current; they are then applied together to the torque coil of the magnetic actuator. The injected current could be varied proportionally according to the external adjustment needs, and the change in the acceleration-to-current transfer function then realized dynamically. The new adjustment method has the advantages of no extra assembly and ease of operation. Changes in the scale factors range from 33% smaller to 100% larger are verified experimentally by adjusting the different external coefficients. The static noise of the used accelerometer is compared under conditions with and without the injecting current, and the experimental results find no change at the current noise level, which further confirms the validity of the presented method.
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Registered trials
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