Zolo Technologies, Inc.

Onpoint Technologies, LLC

Atilio Jobson

Andrew D Sappey

Bernard Patrick Masterson

Michael John Estes

Rod Harris

David Giltner

Jim Howell

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 based on retro-reflector zones within the furnace.

In-furnace retro-reflectors with steerable tunable diode laser absorption spectrometer

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Boulder, CO, United States of America

Atilio Jobson