Non-invasive multi-function sensor system
US7661294B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Sep 21, 2007 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | May 7, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/02466
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An integrated multi-function sensor system has a head having a slot to accept a tube of a deformable material and a plurality of sensor elements mounted in the walls of the head slot to confront a tube in the slot, each sensor element being for affecting sensing of a condition relating to a liquid in the tube. An integrated electronic circuit including a microprocessor operates to determine the various conditions of a liquid flowing in the tube sensed by the sensor elements, which conditions include detection of air bubbles and/or particles by ultrasonic sensing elements, detection of an occlusion in the liquid flow by sensing the deformation of the tube wall by a force sensing element, determining the temperature of the liquid by an infrared temperature sensing element, and determining the color of the liquid by optical elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.