Active cancellation of a pulsating flow with a flow signal noise reference
US10520954B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 24, 2016 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Jul 29, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/41301
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An electronics for active cancellation of a pulsating flow with a flow signal noise reference. The electronics includes a signal processor configured to receive a flow signal from a flow sensor that is configured to measure a flow rate of the pulsating flow, generate a flow rate signal and a noise reference signal from the flow signal, and generate a cancelling signal from the noise reference signal. The electronics also includes a controller coupled to the signal processor and configured to determine a flow rate control signal. The electronics includes a signal generator communicatively coupled to the signal processor and the controller and configured to receive the flow rate control signal, generate a valve signal based on the flow rate control signal and the cancelling signal, and provide the valve signal to a valve to control flow rate and attenuate pulses of the pulsating flow of the fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.