Apparatus and method for measuring microscopic object velocities in flow
US10753857B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 24, 2017 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Mar 30, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30024
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for measuring microscopic object velocities in fluid flow in a capillary tube including scanning a microscope focal plane through a fluid filled space for objects, where the scanning follows an interrupted repeating pattern having sub-patterns where the sub-patterns position the microscope focus plane beginning at a selected focus position at a first time and ending at the selected focus position at a later second time. A sensor registers images in image frames during the scanning. A first object image is registered in a first image frame at the selected focus position and a second object image is registered in a second image frame at the selected focus position. The object in the first object image and the second object image are identified as the same object. A processor determines a velocity for the identified object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.