Fluid flow measuring and proportional fluid flow control device
US7447600B2 · kind B2 · utility
3Cited by
12References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2007 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Aug 31, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N7/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments disclosed herein provide restrictive-flow flow measurement devices, valve improvements and signal control devices and processes that control the flow of liquids, including control processes for single-liquid calibration. In some embodiments, a valve can be adjusted by application of fuzzy logic which involves quantizing input variables into the degree to which a small set of logical values is true. In one embodiment, variables related to flow rate and change in flow rate over time can be compared to membership functions to generate fuzzy inputs, based upon which fuzzy outputs can be generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.