Measuring and testing – Sheet – woven fabric or fiber
Patent
1995-07-25
1998-09-29
Biegel, Ronald L.
Measuring and testing
Sheet, woven fabric or fiber
73838, 73 1213, G01N 330
Patent
active
058132775
ABSTRACT:
An apparatus for measuring the tensile strength of a textile fabric comprises a measuring system having electromagnet, a mass capable of being held in place by the electromagnet, a piezoelectric force sensor connected to said mass, and a rounded-off impact body. By de-energizing the electromagnet, the impact body free-falls onto the textile fabric, which is held in place beneath the impact body under tension. The impact force detected by the sensor is converted to a form with which a computer can compute the tensile strength of the fabric. A series of measurements can be made of a length of fabric advanced through the apparatus in successive stages.
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Spangler, R.D. and E.B. Cooper, Equipment to measure the energy absorption of films at high strain rates, Jour. App. Phys., vol. 28, p. 329, Mar. 1957.
Schmidt Klaus
Schmitt Peter
Biegel Ronald L.
Firma Carl Freudenberg
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