| 摘要 |
PROBLEM TO BE SOLVED: To provide a measuring method that at low cost and readily measures contact pressure, such as, compression of clothes and the body pressure of a chair or bed at two or more places with one pressure gauge having one built-in pressure sensor, and intermittently measures the changes due to passage of time, without disturbing routine movements. SOLUTION: The contact pressure measuring method includes a pressure sensing sensor that senses the contact pressure and where a tube 2 is attached to a bag 1 made of a soft film of non-elasticity; a cylinder 8 that has an exhaust hole 14 in a cylindrical side surface of volume A and where a piston valve 9 operated with a compression spring 12 is while blocking the opening of the hollow tube 7; and a pressure gauge 6 for measuring the differential pressure from the atmosphere. The cylinder 8, the pressure gauge 6, and a connection hole 5 for connecting the tube 2 are interconnected through piping. When the tube 2 of the bag 1 between a measuring surface D and a non-measuring object C is connected to the connection hole 5, a cock 13 is pulled; the cock is released; the piston valve 9 presses out the air of volume A; and the pressure is measured by the pressure gauge 6. COPYRIGHT: (C)2011,JPO&INPIT |
