Shock sensor and devices to which the latter is applied
First Claim
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1. A shock sensor for attachment to a structure and having a fundamental resonant frequency, said sensor comprising:
- a rod having a first end, a second end and a longitudinal axis, said first end being attachable to said structure;
a weight attached to said second end;
acceleration detection means attached to said weight for detecting vibrations along an axis perpendicular to said longitudinal axis; and
means to remove a plurality of harmonics of said fundamental resonant frequency from said vibrations.
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Abstract
Shock or impact sensor which can be fixed to a structure (14) comprising, along a longitudinal axis (AL) perpendicular to the structure (14), a rod (12) which can be joined to the structure (14) by a first end (16), a weight or counterweight (24) joined to a second end of the rod (12) and acceleration detection fixed to weight or counterweight (24) to detect acceleration along an axis perpendicular to the longitudinal axis of the sensor.
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Citations
11 Claims
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1. A shock sensor for attachment to a structure and having a fundamental resonant frequency, said sensor comprising:
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a rod having a first end, a second end and a longitudinal axis, said first end being attachable to said structure; a weight attached to said second end; acceleration detection means attached to said weight for detecting vibrations along an axis perpendicular to said longitudinal axis; and means to remove a plurality of harmonics of said fundamental resonant frequency from said vibrations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A gyrometer for measuring a rotation, comprising:
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a support; a first and a second sensor, each sensor having a fundamental resonant frequency and including; a rod having a first end, a second end and a longitudinal axis, said first end being attached to said support and said rod having a groove near said first end; a weight attached to said second end; and acceleration detection means attached to said weight for detecting vibrations along an axis perpendicular to said longitudinal axis;
said first and second sensor first ends being spaced apart; andmeans for measuring a velocity for each sensor first end and combining said velocities to provide a measure of said rotation.
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Specification