Fluid evaluation apparatus and method, computer program, and recording medium
US11529078B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 5, 2016 |
| Grant date | Dec 20, 2022 |
| Priority date | — |
| Expiry date | Mar 11, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/49
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This fluid evaluation device is provided with an irradiation unit for irradiating a fluid with light, a light reception unit for receiving scattered light from the fluid and outputting a light reception signal, and an estimation unit for estimating at least one from among flow rate and density by mapping input points, which are on a first plane defined by flow rate and frequency and are expressed by light amount information indicating the amount of scattered light included in the light reception signal and frequency information indicating a frequency for a beat signal resulting from the Doppler shifting of the light included in the light reception signal, onto a second plane defined by fluid flow rate and fluid density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.