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Composite vibratory in-plane accelerometer

  • US 10,234,477 B2
  • Filed: 09/23/2016
  • Issued: 03/19/2019
  • Est. Priority Date: 07/27/2016
  • Status: Active Grant
First Claim
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1. A composite mass system, comprising:

  • a sense mass, wherein the sense mass responds to an inertial parameter in a first direction at a first frequency in the first direction;

    a drive mass flexibly coupled to the sense mass, wherein the drive mass is driven in the first direction at a second frequency;

    a first time-domain switch configured to generate an output voltage based on a first current generated in part by the sense mass moving relative to a support structure; and

    logic circuitry in signal communication with the first time-domain switch and configured to;

    determine a time interval based on the output voltage; and

    calculate the inertial parameter based on the time interval.

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