Valery A Sheverev

US Patent:

7701586, Apr 20, 2010

Filed:

Oct 29, 2007

Appl. No.:

11/926793

Inventors:

Volkan Otugen - Dallas TX, US
Valery Sheverev - West Orange NJ, US

Assignee:

Polytechnic Institute of New York University - Brooklyn NY

International Classification:

G01B 9/02

US Classification:

356480, 356 355, 356481

Abstract:

Stresses and strains on a solid surface subject to a fluid flow are dynamically measured based on a shift of optical resonances of a micro-resonator. The elastic deformation and refractive index change of a micro-resonator due to mechanical stress is exploited. With this approach, mechanical deformations in the order of a nanometer can be detected and related to shear stress.

US Patent:

7770463, Aug 10, 2010

Filed:

Nov 26, 2008

Appl. No.:

12/313922

Inventors:

Valery A. Sheverev - West Orange NJ, US
Vadim Stepaniuk - Bloomfield NJ, US

Assignee:

Lenterra, Inc. - West Orange NJ

International Classification:

G01L 1/24

US Classification:

73800, 73760

Abstract:

A shear stress sensor for measuring the shear force of a fluid flowing along a wall. A floating member, flush with the wall, senses a shear force of the flowing fluid. The floating member is mounted by support means to a base element that is placed in the wall, so that the floating member is flush with the wall and a shear force, sensed by the floating member, is translated via the support means to a micro-resonator. The force acting on the micro-resonator changes the shape and the refractive index of the micro-resonator, thereby changing the resonant frequency of the micro-resonator and causing a shift in the spectrum of wavelengths of light that is introduced to the micro-resonator. This shift in the spectrum of wavelengths is representative of the shear force of the flowing fluid.

US Patent:

8028586, Oct 4, 2011

Filed:

May 12, 2009

Appl. No.:

12/464547

Inventors:

Valery A. Sheverev - West Orange NJ, US
Vadim Stepaniuk - Bloomfield NJ, US

Assignee:

Lenterra, Inc. - West Orange NJ

International Classification:

G01L 1/24

US Classification:

73800

Abstract:

A load cell having an optical micro-resonator in a housing formed of high thermally conductive material. Upon application of a force to a surface of the housing, the micro-resonator is squeezed and changes in shape and refractive index, thereby changing the resonant frequency of the micro-resonator and causing a shift in the spectrum of wavelengths of light that is introduced to the micro-resonator. This shift in the spectrum of wavelengths is representative of the force applied to the housing of the load cell.

US Patent:

8276463, Oct 2, 2012

Filed:

Jun 29, 2010

Appl. No.:

12/825974

Inventors:

Valery A. Sheverev - West Orange NJ, US
Vadim Stepaniuk - Bloomfield NJ, US

Assignee:

Lenterra, Inc. - West Orange NJ

International Classification:

G01L 1/24

US Classification:

73800, 73760

Abstract:

A shear stress sensor for measuring the shear force of a fluid flowing along a wall. A floating member, flush with the wall, senses a shear force of the flowing fluid. The floating member is mounted by support means to a base element that is placed in the wall, so that the floating member is flush with the wall and a shear force, sensed by the floating member, is translated via the support means to a Fiber Bragg Grating. The force acting on the Fiber Bragg Grating changes the shape and the refractive index of the Fiber Bragg Grating, thereby changing the resonant frequency of the Fiber Bragg Grating and causing a shift in the spectrum of wavelengths of light that is introduced to the Fiber Bragg Grating. This shift in the spectrum of wavelengths is representative of the shear force of the flowing fluid.

US Patent:

20070273384, Nov 29, 2007

Filed:

May 10, 2006

Appl. No.:

11/431283

Inventors:

Valery Sheverev - West Orange NJ, US

International Classification:

G01N 27/62

US Classification:

324464000

Abstract:

Gas detection and identification apparatus that receives a flow of a mixture of a carrier gas and an analyte gas and detects and identifies the components of the flowing gas mixture by Penning Ionization Electron Spectroscopy (PIES).

US Patent:

20140116138, May 1, 2014

Filed:

Jun 20, 2012

Appl. No.:

14/126165

Inventors:

Valery A. Sheverev - West Orange NJ, US
Srdjan Nesic - Athens OH, US

Assignee:

OHIO UNIVERSITY - Athens OH

International Classification:

G01N 29/02

US Classification:

73579

Abstract:

A sensor device and method for monitoring interaction between a fluid and a wall includes includes a mechanical oscillator, a housing, and mechanical response sensing system. The mechanical oscillator includes a floating member formed from a first material configured to be susceptible to the fluid and a support member formed from a second material resistant to the fluid. The mechanical oscillator is affixed within the housing that is adaptably fastened to the structural component such that the floating member contacts the fluid. The mechanical response sensing system is configured to measure a mechanical characteristic of the combined floating member and the support member. The mechanical characteristic is configured to be indicative of the interaction between the fluid and the wall.