Sensor mat configuration enabling actual resistance values of force-dependent resistors of a sensor mat to be determined
US6657445B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2002 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Apr 21, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L1/205
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor mat configuration includes a sensor mat having row lines, column lines, and a plurality of force-dependent resistors connected between the row lines and the column lines to form a matrix having rows and columns. The sensor mat configuration includes a printed circuit board having a plurality of fixed resistors. The first terminal of each one of the plurality of the fixed resistors is connected to a respective one of the column lines, and the second terminal of each one of the plurality of the fixed resistors are connected together, thereby forming an additional row of the matrix. The resistances of the plurality of the fixed resistors are known within a narrow tolerance range, which enables these resistors to be used in measurements for accurately determining the resistances of the force-dependent resistors of the sensor mat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.