Sensor and transducer apparatus
First Claim
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1. A pressure sensor apparatus comprising:
- at least one pad means for holding a quantity of fluid, said pad means being compressible in response to the application of pressure to said pad means for displacing said fluid;
at least one first diaphragm means operatively connected to said pad means for deflection in response to displacement of fluid in response to compression of said pad means by an amount reflective of the pressure applied to said pad means;
fluid contained in said pad means;
transducer diaphragm means operatively associated with said first diaphragm means;
at least one displaceable deflection transfer means interconnecting said first diaphragm means and said transducer diaphragm means; and
fluid container means operatively associated with said first diaphragm means and with said transducer diaphragm means;
wherein said displaceable deflection transfer means comprises fluid in said container, said fluid being displaceable in response to the deflection of said first diaphragm means for deflecting said transducer diaphragm means.
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Abstract
Pressure sensor apparatus comprising fluid filled pads which are compressible in response to pressure for deflecting diaphragms to effect electrical signals reflective of the pressure.
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Citations
25 Claims
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1. A pressure sensor apparatus comprising:
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at least one pad means for holding a quantity of fluid, said pad means being compressible in response to the application of pressure to said pad means for displacing said fluid; at least one first diaphragm means operatively connected to said pad means for deflection in response to displacement of fluid in response to compression of said pad means by an amount reflective of the pressure applied to said pad means; fluid contained in said pad means; transducer diaphragm means operatively associated with said first diaphragm means; at least one displaceable deflection transfer means interconnecting said first diaphragm means and said transducer diaphragm means; and fluid container means operatively associated with said first diaphragm means and with said transducer diaphragm means; wherein said displaceable deflection transfer means comprises fluid in said container, said fluid being displaceable in response to the deflection of said first diaphragm means for deflecting said transducer diaphragm means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A pressure sensor apparatus comprising:
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at least one pad means for holding a quantity of fluid, said pad means being of a unitary construction having a flexible wall structure and compressible in response to the application of pressure to said pad means for displacing said fluid; at least one first diaphragm means operatively connected to said pad means; fluid contained in said pad means; said fluid being displaced in response to the compression of said pad means to deflect said diaphragm means by an amount reflective of the pressure applied to said pad means; transducer diaphragm means operatively associated with said first diaphragm means; and
,at least one displaceable deflection transfer means interconnecting said at least one first diaphragm means and said transducer diaphragm means; said transducer diaphragm means deflecting in response to the displacement of said deflection transfer means for deflecting said transducer diaphragm means according to the deflections of said first diaphragm means. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. The apparatus according to claim 31 wherein said electrical signal generating means is a capacitive device having relatively movable plates, said movable means being one of said plates.
Specification