Importance

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Abstract

A method of making a force sensor, the force sensor being particularly sensitive the axial component of a force applied along a predetermined axis, of the type including a force-receiving membrane deformable by an applied force to be sensed, the method comprising: providing the force sensor with a body of a liquid, and with a second membrane separated from said force-receiving membrane by the body of liquid; applying the force to be sensed to the center of the force-receiving membrane to thereby pressurize the liquid according to the magnitude and axis of the force applied to the force-receiving membrane; and measuring the deformation of the second membrane; wherein the force-receiving membrane is of a non-undulating configuration in its normal condition and is deformable, by a force applied to its center at an oblique angle to its surface, into an undulating configuration, to include an inwardly-bowed section on one side of its center, and an outwardly-bulged section on the opposite side of its center, such that the liquid body is pressurized by the applied force only according to the axial component of the applied force.

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First Claim