Ultrasonic flowmeter
US7194363B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2003 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Dec 22, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F15/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A low power ultrasonic flowmeter to be powered by a two wire power supply loop is described, comprising: an ultrasonic flow sensor, a signal processing unit for determining a measurement result based on measurements performed by the ultrasonic flow sensor, an input/output unit to be connected to the two wire loop, for controlling a current of the power supplied to represent the measurement result, for receiving power from the power supply loop, and a power management system, for an energy efficient distribution of the power supplied to the flowmeter via the input/output unit, comprising storage means for storing energy during times of low power consumption and resupplying the stored energy during times of high power consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.