Potentiometer device for determination of valve positions
US6990967B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 26, 2004 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Oct 10, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/165
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A potentiometer device, for detecting valve positions, wherein a voltage signal Us is sendable to a control unit having an A/D converter, including a carrier element on which at least one slider track, having a slider element in contact therewith, is disposed; wherein the slider track switches between supply voltage Uv of the control unit and ground, and the slider element is connected with the control unit with a protection resistance over an output, wherein the control unit includes a resistance for detecting a cable disconnect, which is a pull-down resistance between voltage signal Us and ground, or a pull-up resistance between supply voltage Uv and voltage signal Us, wherein a resistance is provided at output, that is, in a first embodiment, a pull-up resistance between supply voltage Uv and voltage signal Us, and, in a second embodiment, a pull-down resistance between voltage signal Us and ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.