公开(公告)号：CA2871072C

公开(公告)日：2020-07-14

申请号：CA2871072

申请日：2013-03-15

Applicant: ZOLO TECH INC

Inventor： HOWELL JIM ,  MASTERSON BERNARD PATRICK ,  HARRIS ROD ,  GILTNER DAVID ,  JOBSON ATILIO ,  ESTES MICHAEL JOHN ,  SAPPEY ANDREW D

IPC: G01N21/31 ,  F23N5/00 ,  F24H9/00 ,  G01N21/39

Abstract: A method of monitoring combustion properties in an interior of a furnace is described. A beam of light is projected through a pitch optic including a pitch collimating lens residing outside the boiler interior. The pitch collimating lens projects the beam through a penetration into the boiler interior. The beam of light projected by the pitch collimating lens is reflected from at least one in-furnace retro-reflector, and received with a catch optic substantially identical to the pitch optic residing outside the boiler interior. The pitch optic and the catch optic may be embodied in the same pitch/catch optic. The pitch collimating lens may also be steered toward another of the at least one in-furnace retro-reflectors. Combustion properties may be calculated for each retro-reflector or based on retro-reflector zones within the furnace.

公开(公告)号：CA2748793C

公开(公告)日：2016-06-07

申请号：CA2748793

申请日：2010-01-07

Applicant: ZOLO TECH INC

Inventor： ESTES MICHAEL JOHN ,  SAPPEY ANDREW D ,  HOFVANDER HENRIK ,  MOLITORIS ALLEN ,  MASTERSON BERNARD PATRICK ,  HUANG PEI

IPC: F22B37/38 ,  F22B17/16 ,  F23M11/04 ,  F23N5/08 ,  F24H9/20 ,  G01N21/39

Abstract: A method of monitoring com-bustion properties in an interior of a boiler of the type having walls comprising a plurality of parallel steam tubes separated by a metal membrane. First and second penetrations are provided in the metal membrane between ad-jacent tubes on opposite sides of the boiler. A beam of light is projected through a pitch op-tic comprising a pitch collimating lens and a pitch relay lens, both residing outside the boiler interior. The pitch relay lens projects the beam through a penetration into the boiler interior. The beam of light is received with a catch optic substantially identical to the pitch optic residing outside the boiler interior. The strength of the collimated received beam of light is determined. At least one of the pitch collimating lens and the catch collimating lens may then be aligned to maximize the strength of the collimated received beam.

公开(公告)号：CA2934271A1

公开(公告)日：2015-06-25

申请号：CA2934271

申请日：2014-12-22

Applicant: ZOLO TECH INC

Inventor： MASTERSON BERNARD P ,  ESTES MICHAEL JOHN ,  SAPPEY ANDREW D

IPC: F23N5/08

Abstract: A method of monitoring blockage of a sight tube attached to a wall of a process chamber, the sight tube being operatively associated with a TDLAS optical head with a window between the sight tube and the TDLAS optical head. The method includes the steps of providing a photo sensor in the TDLAS optical head, the photo sensor being positioned to receive light emitted by a light emitting process within the process chamber. An emission signal produced by light emitted by the light emitting process within the process chamber being received by the photo sensor is monitored. A determination is made if the emission signal is degrading.

公开(公告)号：CA2934271C

公开(公告)日：2022-05-31

申请号：CA2934271

申请日：2014-12-22

Applicant: ZOLO TECH INC

Inventor： MASTERSON BERNARD P ,  ESTES MICHAEL JOHN ,  SAPPEY ANDREW D

IPC: G01N21/39 ,  F23N5/08

Abstract: A method of monitoring blockage of a sight tube attached to a wall of a process chamber, the sight tube being operatively associated with a TDLAS optical head with a window between the sight tube and the TDLAS optical head. The method includes the steps of providing a photo sensor in the TDLAS optical head, the photo sensor being positioned to receive light emitted by a light emitting process within the process chamber. An emission signal produced by light emitted by the light emitting process within the process chamber being received by the photo sensor is monitored. A determination is made if the emission signal is degrading.

公开(公告)号：ES2644601T3

公开(公告)日：2017-11-29

申请号：ES13779007

申请日：2013-03-15

Applicant: ZOLO TECH INC

Inventor： HOWELL JIM ,  MASTERSON BERNARD PATRICK ,  HARRIS ROD ,  GILTNER DAVID ,  JOBSON ATILIO ,  ESTES MICHAEL JOHN ,  SAPPEY ANDREW D

IPC: G01N21/39 ,  F23M11/04 ,  F23M20/00 ,  F23N5/00 ,  F23N5/08 ,  F24H9/00 ,  G01J3/02 ,  G01J3/42 ,  G01N21/84 ,  G02B5/122

公开(公告)号：CA2972253A1

公开(公告)日：2016-06-30

申请号：CA2972253

申请日：2015-11-18

Applicant: ZOLO TECH INC

Inventor： SAPPEY ANDREW D ,  MASTERSON BERNARD PATRICK

IPC: G02B6/00

Abstract: A system for widely spaced wavelength tunable diode laser absorption spectroscopy includes at least a first and second tunable diode laser generating laser light at a first and second wavelength, wherein laser light of the first and second wavelengths cannot co-propagate efficiently on the same single-mode fiber. A first fiber may be configured to carry light in the first wavelength, and a second fiber configured to carry light in the second wavelength. A fiber bundle may be formed from the distal ends of the first and second fibers stripped of their respective coatings, and arranged with their claddings adjacent to each other. One or more pitch heads are configured to project respective beams of laser light from the fiber bundle through a measurement zone. One or more catch heads located across the measurement zone receive the respective beams and direct the respective beams onto at least one sensor.

公开(公告)号：EP2569663A4

公开(公告)日：2017-11-15

申请号：EP11781158

申请日：2011-05-10

Applicant: ZOLO TECH INC

Inventor： HOFVANDER HENRIK ,  MASTERSON BERNARD P ,  SAPPEY ANDREW D ,  HOWELL JAMES ,  OWENBY DAVID ,  SUTHERLAND LEE ,  ESTES MICHAEL J

IPC: G02B6/00 ,  G01J1/42 ,  G01J3/433 ,  G01J5/00 ,  G01J5/60 ,  G01L23/16 ,  G01N21/39

CPC classification number: G01J5/0014 ,  G01J3/4338 ,  G01J5/601 ,  G01J2001/4242 ,  G01L23/16 ,  G01N21/39 ,  G01N2021/399