Sensor, system and method for determining Z-directional properti

Details Sensor, system and method for determining Z-directional properti Sensor, system and method for determining Z-directional properti

1993-04-12

1994-03-22

Cosimano, Edward R.

Boots, shoes, and leggings

73159, 162198, 324229, G01B 710

Patent

active

052970620

ABSTRACT:
A sensor, system and method for determining the various Z-directional properties of a sheet by measuring the caliper of a moving sheet of material at a plurality of pressures. The invention employs a caliper gauge and a set of pressure transducers that can measure and send signals indicative of the caliper as well as pressures exerted on the sheet. The signals are then digitized by an analog-to-digital converter and sent to a computer. The computer uses the compressibility data to construct a compression stress-strain diagram where the slope of the curve in the linear region of the curve is defined as the compression modulus of elasticity which can be empirically correlated to the tensile modulus of elasticity for various grades of paper. The tensile modulus of elasticity can be then used in various formulas to determine other Z-directional physical properties of the sheet, such as tensile strength, extensional stiffness and Scott bonding.

REFERENCES:
patent: 3621259 (1971-11-01), Boissevain
patent: 3828248 (1974-08-01), Wennerberg
patent: 4134211 (1979-01-01), Typpo et al.
patent: 4866984 (1989-09-01), Houghton
patent: 4901445 (1990-02-01), Boissevain et al.
patent: 5104488 (1992-04-01), Chase
patent: 5132619 (1992-07-01), Typpo
patent: 5226239 (1993-07-01), Boissevain et al.
patent: 5233727 (1993-08-01), Boechler
Hall: "On-Line Ultrasonic Measurement of Paper Strength"; Sensors; Jun. 1990; pp. 13, 14, 16, 18-20.

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