Crossflow vorticity sensor
US4727751A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1987 |
| Grant date | Mar 1, 1988 |
| Priority date | — |
| Expiry date | Jan 15, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P5/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A crossflow vorticity sensor is provided for the detection of crossflow vorticity characteristics. The crossflow vorticity sensor is comprised of crossflow sensors (10) which are non-invasively adhered to swept wing laminar surface (12) either singularly, in multi-element strips (11), in polar patterns (40), or orthogonal patterns (41). These crossflow sensors (10) are comprised of hot-film sensor elements (18) which operate as a constant temperature anemometer circuit to detect heat transfer rate changes. Accordingly, crossflow vorticity characteristics are determined via cross-correlation. In addition, the crossflow sensors (10) have a thickness which does not exceed a maximum value h in order to avoid contamination of downstream crossflow sensors (10).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.