Single-body dual-chip Orthogonal sensing transit-time flow device
US6901812B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2002 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Dec 30, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/667
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic sensor having a pair of ultrasound transducers adapted to be inserted in and being able to perform at a single site of introduction into a duct. The ultrasonic sensor measures a forward ultrasonic path transit time and a second reverse ultrasonic path transit time of ultrasound signals propagating in a fluid. The arrangement being such that a comparison of the signal associated with ultrasound travel in one direction with that of the signal associated with ultrasound travel in the opposite direction enables the flow rate of the fluid in the duct to be determined. The ultrasonic sensor may utilize a reflecting surface on the duct and a reflective surface of an ultrasonic sensor end cap to provide forward and reverse ultrasonic W-shaped paths. In addition, the ultrasonic sensor may also be used to measure the temperature, viscosity, and cavitation effects of a fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.