Apparatus, methods and articles of manufacture to calibrate valve-mounted instruments
US10120392B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2015 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Nov 10, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8359
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Example methods, apparatus and articles of manufacture to calibrate valve-mounted instruments, such as a position controllers and/or a position transmitter, are described. An example tangible computer-readable medium comprises instructions that, when executed, cause a machine to receive a first value representative of a current position of a valve, receive a second value representative of a sensitivity of a position sensor, compute a first estimated value corresponding to an expected fully-open position of the valve based on the received first and second values, compute a second estimated value corresponding to an expected fully-closed position of the valve based on the received first and second values, receive a control signal representative of a desired position of the valve, and in response to the received control signal, position the valve at substantially the desired position based on the first and second estimated values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.