Flow sensor
US10539444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2017 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Jul 17, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/505
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A flow sensor comprises a flow restriction disposed within a passage such that a fluid passing through the passage must pass through the flow restriction. The flow sensor also has an upstream pressure sensor coupled to the passage at a point upstream of the flow restriction and configured to measure and provide an upstream pressure of the fluid within the passage, a downstream pressure sensor coupled to the passage at a point downstream of the flow restriction and configured to measure and provide a downstream pressure of the fluid within the passage, and a temperature sensor coupled to the passage and configured to measure and provide a temperature of the fluid within the passage. The flow sensor also includes a flow sensor processor coupled to the upstream and downstream pressure sensors and the temperature sensor and configured to accept measurements therefrom and calculate a compensated flow rate based at least in part on the measured pressures and temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.