Direction-sensitive flow-rate indicator
US4890489A · kind A · utility
6Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 16, 1988 |
| Grant date | Jan 2, 1990 |
| Priority date | — |
| Expiry date | Sep 16, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P13/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A direction-sensitive flow velocity meter in which at least first and second thermocouples of the Seebeck type are arranged in a symmetrical layout in a common semiconductor substrate. The configuration is such that imaginary lines joining the junction ends of the thermocouples each extend parallel to perpendicular flow velocity components, with the heating element or electronic circuitry for processing the thermocouple voltages being integrated into the common substrate at surface areas free of the thermocouples.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.