Method and laminated member for measuring gap dimension

Details Method and laminated member for measuring gap dimension Method and laminated member for measuring gap dimension

2000-01-14

2000-09-12

Gutierrez, Diego

Geometrical instruments

Gauge

Internal

33543, G01B 300, G01B 5004, G01B 501

Patent

active

061159301

ABSTRACT:
A method and a laminated member for measuring the dimension of a gap for passing a card therethrough are provided. A pressure measuring film is superposed on an elastic mat that gradually becomes thinner in the card-inserting direction, and passed through the gap so as to determine the dimension of the gap from the position where the pressure measuring film has started to develop a color. As the elastic mat, one that has a thickness changing in steps may be used. An alternative embodiment uses a pressure measuring board in place of the pressure measuring film, the pressure measuring board having plural pressure sensors for electrically detecting pressures applied in the direction of width. The data on the pressures detected by the pressure sensors is temporarily stored in a memory provided on the pressure measuring board, and after the passage through the gap, the contents of the memory are transferred to an external host computer via a wiring cable or in a contactless fashion via an antenna, and the pressure distribution is analyzed by the external host computer.

REFERENCES:
patent: 2114936 (1938-04-01), Pilnick
patent: 2846772 (1958-08-01), Strausser
patent: 4015465 (1977-04-01), Scott
patent: 4112355 (1978-09-01), Gibson, Jr. et al.
patent: 5174030 (1992-12-01), Clot et al.
patent: 5285684 (1994-02-01), Uesugi et al.
patent: 5698796 (1997-12-01), Hirano
patent: 5768794 (1998-06-01), Kelly

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