Kevin M Flanagan

US Patent:

20210364433, Nov 25, 2021

Filed:

May 19, 2021

Appl. No.:

17/324423

Inventors:

- Yellow Springs OH, US
Kevin FLANAGAN - Yellow Springs OH, US

International Classification:

G01N 21/64
G01N 33/18

Abstract:

A swept frequency fluorometer having a signal processor or processing module configured to:receive signaling containing information about reflected light off one or more fluorescence species-of-interest in a liquid sample that is swept with light having a variable frequency range, the information including a characteristic optical frequency corresponding to a fluorescence species-of-interest in the liquid, and a characteristic/lifetime optical frequency corresponding to a distinct fluorescence lifetime in which the fluorescence species-of-interest remains in an excited state; andprovide corresponding signaling containing information about an identity of the fluorescence species-of-interest detected and distinguished from overlapping fluorescence species in the liquid using the characteristic/lifetime optical frequency, based upon the signaling received

US Patent:

20210364438, Nov 25, 2021

Filed:

May 19, 2021

Appl. No.:

17/324475

Inventors:

- Yellow Springs OH, US
Kevin FLANAGAN - Yellow Springs OH, US

International Classification:

G01N 21/64

Abstract:

A spatial gradient-based fluorometer featuring a signal processor or processing module configured to: receive signaling containing information about light reflected off fluorophores in a liquid and sensed by a linear sensor array having a length and rows and columns of optical elements; and determine corresponding signaling containing information about a fluorophore concentration of the liquid a fluorophore concentration of the liquid that depends on a spatial gradient of the light reflected and sensed along the length of the linear sensor array, based upon the signaling received

US Patent:

20180156730, Jun 7, 2018

Filed:

Nov 22, 2017

Appl. No.:

15/820908

Inventors:

- Yellow Springs OH, US
Kevin Riley Flanagan - Yellow Springs OH, US

International Classification:

G01N 21/64
G01N 21/17
G02B 5/20

Abstract:

A dual function fluorometer-absorbance sensor features an absorbance-based sensor configured to receive one part of an optical signal transmitted through a body of water of interest along an optical beam transmission path, and determine absorbance-based sensor signaling containing information about an absorbance of the optical signal by one or more absorbance species of interest present in the body of water; and a fluorescence-based sensor configured to receive another part of the optical signal transmitted through the body of water of interest along a corresponding optical beam transmission path that is perpendicular to the optical beam transmission path, and determine fluorescence-based sensor signaling containing information about a fluorescence transmitted by one or more fluorophore species of interest present in the body of water.