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Tri-axial accelerometers

  • US 4,941,354 A
  • Filed: 12/05/1988
  • Issued: 07/17/1990
  • Est. Priority Date: 12/04/1987
  • Status: Expired due to Term
First Claim
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1. A tri-axial moving magnet accelerometer comprising a housing, a magnet mounted within the housing so as to be displaceable with respect to three mutually transverse measurement axes in response to an applied force, said magnet being mounted on a support member which is coupled to the housing by a planar diaphragm so as to allow for pivoting of said support member in the directions of two of said measurement axes by flexing of said diaphragm and so as to permit linear displacement of said support member in the direction of the third of said measurement axes by deformation of said diaphragm perpendicularly to the plane of said diaphragm, and sensing means for sensing displacement of said magnet and for providing a respective output signal proportional to the component of the applied force along each of said three measurement axes.

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