Operator control unit for a measuring instrument for process or automation engineering, and measuring instrument having an operator control unit of this kind
US12136916B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2020 |
| Grant date | Nov 5, 2024 |
| Priority date | — |
| Expiry date | Jan 25, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10151
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to an operator control unit for a measuring instrument for process or automation engineering, the operator control unit consisting of at least two adjacently arranged control panels (10a), the control panels (10a) being operated by pressing on a respective shape-variable or elastic housing region (2a) having a respective capacitive sensor element (11) disposed thereunder. The sensor elements (11) each have a first electrode (11a) as a lower plate capacitor and a counter-electrode (11b) arranged in parallel thereabove as an upper plate capacitor, and pressing on one of the housing regions (2a) causes the respective upper plate capacitor (11b) to approach the respective lower plate capacitor (11a), thus changing the capacitance. The first electrode (11a) is attached to a first carrier material (12) and the counter-electrode (11b) is attached to a second carrier material (13). According to the invention, the housing regions (2a) are arranged adjacently to one another in an uninterrupted manner, and the sensor elements (11) are parts of a multi-layered composite printed circuit board (100), which bears against the inner sides of the housing regions (2a), wherein t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.