公开(公告)号：US09817016B1

公开(公告)日：2017-11-14

申请号：US15672587

申请日：2017-08-09

Applicant: Bio-Rad Laboratories, Inc.

Inventor： David H. Tracy ,  Aaron Weber ,  Peter Stokes

IPC: G01P5/20 ,  B01L3/00 ,  G01N15/14 ,  G01N15/02 ,  G01F1/708 ,  G01P5/00 ,  G01F22/00 ,  G01N15/10 ,  G01N35/08

CPC classification number: G01P5/20 ,  B01L3/502715 ,  B01L3/502784 ,  B01L2200/143 ,  B01L2400/0487 ,  B01L2400/082 ,  G01F1/7086 ,  G01F22/00 ,  G01N15/0227 ,  G01N15/1434 ,  G01N15/1459 ,  G01N15/1463 ,  G01N15/1484 ,  G01N35/08 ,  G01N2015/1075 ,  G01N2015/1493 ,  G01P5/001

Abstract: Systems and methods are provided for determining a velocity or an inflation rate of a droplet in a microfluidic channel. The droplet is exposed to two or more temporally separated flashes of light, each flash including light of one wavelength band, and imaged using a detector configured to distinguish light in the wavelength bands. Two or more images of the droplet are acquired, each corresponding to one of the flashes, and all within a single video frame or photographic exposure. The images can be processed separately and the position or size of the droplet in each image is calculated. A velocity or inflation rate is then determined by dividing the change in position or size by the amount of time allowed to pass between the flashes.

公开(公告)号：US10962563B2

公开(公告)日：2021-03-30

申请号：US16246298

申请日：2019-01-11

Applicant: Bio-Rad Laboratories, Inc.

Inventor： Aaron Weber ,  Tony Hung ,  Sepehr Kiani

IPC: G01P5/18 ,  G01P5/20 ,  G01P5/26

Abstract: Methods and systems are provided for measuring a velocity of a droplet passing through a microfluidic channel.

公开(公告)号：US10215771B2

公开(公告)日：2019-02-26

申请号：US14932537

申请日：2015-11-04

Applicant: Bio-Rad Laboratories, Inc.

Inventor： Aaron Weber ,  Tony Hung ,  Sepehr Kiani

IPC: G01P5/18 ,  G01P5/20 ,  G01P5/26

Abstract: Methods and systems are provided for measuring a velocity of a droplet passing through a microfluidic channel.