A high temperature sensor for use with an induced vibration dynamic touch sensor system comprising a pad element adapted for sliding contact with an object so as to induce vibrations in the pad, a mechanical coupling means comprising a stiff, substantially straight member for coupling the pad to a transducer assembly, the transducer assembly for converting the vibrations into electrical signals. The electrical signals are processed to produce a normalized spectral signature characteristic of the size and shape of the object, and the sizes and shapes and nature of its surface features. A pattern vector is extracted from the spectral signature and subjected to discriminant analysis to classify and recognize the object.
A micromechanical resonator including a motion arresting mechanism to rapidly damp the vibration of a resonator beginning at any given moment in time to remove vibration caused by previous events. An electrostatic clamp uses a bias voltage between an electrode and the resonator to damp the resonator and return it to its equilibrium position. A mechanical clamp includes an actuator that forces the mechanical clamp to contact the resonator. These micromechanical resonators facilitate condition based monitoring of complex electromechanical machines and components by allowing signature analysis in multiple temporal and frequency domains.
A device for endless coiling of strip material has a support and two coil drums which are spaced from one another and move synchronously along the support in opposite directions. The first and second coil drums are displaced alternately to an initial position, wherein each of these drums rotates to receive a leading edge of a respective coil of strip material. Thereafter, each of the coil drums is displaced to a respective finish position where the coil drums each receive the remainder of a respective coil. The finish positions are spaced from the initial positions in opposite directions. The first and second coil drums are displaced alternately to a coil removal position, at which a respective wound coil of strip material is removed from each of the coil drums.
The invention sets forth a method for determining the hand quality of a fabric or other material. The invention establishes a new constant value to be applied to this determination. The constant value is referred to as the Quality Energy Value (hereinafter the "QE value") of a material. The QE value takes into account the reciprocatory motion actually used when rubbing a piece of cloth with a finger to subjectively determine the hand quality of a fabric. The invention utilizes a testing apparatus which simulates this sliding motion of finger on fabric. The QE value also advantageously takes into account the velocity at which the frictional properties of the fabric are measured. It has been found that the lower the QE value, the better the quality of the fabrics. Accordingly, using the method of the invention, a range of QE values may be established for a variety of fabrics, and, thereby, the relative hand qualities of the fabrics may be compared.
