Georgia Tech Research Corporation

The Coca-cola Company

Sangamo Weston, Inc.

Lumense, Inc.

Daniel P Campbell

Thomas R Mohs

Srinivas Somayajula

Jayme Caspall

Jim Suggs

Kenneth E Johnson

Robert E Jones

Janet Cobb-Sullivan

Michael Slawson

Mark Rule

James W Larsen

Jeffrey L Moore

Charlene W Bayer

Ruoya Wang

Bonnie Bobzin

Larry Starr

Amy L Cook

Victor R DeJesus

Robert J Hendry

Kenneth Johnson

Michael R Slawson

A system and method for the monitoring of carbon dioxide (CO2) for chemical contaminants. The carbon dioxide monitoring system includes a contaminant sensor that is configured to detect trace amounts of contaminants in CO2 that is pumped through it in real time. The contaminant sensor includes an interferometer configured to track the amount of contaminants.

Sensor for continuous, real-time monitoring of carbon dioxide for chemical contaminants

A system and method for the monitoring of ammonia in a fluid. The ammonia monitoring system includes an ammonia sensor that is configured to detect trace amounts of ammonia (NH) in a fluid (i.e., gas or liquid) that is pumped through it in real time. The real time ammonia sensor includes an interferometer configured to track the amount of ammonia that is pumped into the real time ammonia sensor. The ammonia monitoring system, via the real time ammonia sensor, is further configured to detect ammonia levels in industrial poultry houses and provide electronic feedback to the building's ventilation control system.

System and method for sensing ammonia

Filters for removing particulate and gaseous organic and inorganic materials from a fluid stream are disclosed. The filter may contain a polymer matrix and optional sequestering agents. Methods of making the filters are also disclosed. Methods of using the filters to remove one or more materials from a fluid stream, such as an air stream, are also disclosed.

Filters and methods of making and using the same

Filters for removing particulate and gaseous organic and inorganic materials from a fluid stream are disclosed. The filters may contain a polymer matrix and optional sequestering agents. Methods of making filters are also disclosed. Methods of using filters to remove one or more materials from a fluid stream, such as an air stream, are also disclosed.

A method of determining the diffusion rate of a given analyte into a polymer film using an optical waveguide interferometer is disclosed. A method of forming a filter media by selecting a polymer for the sorbent system of the filter media based on the diffusion rate of a given analyte into a given polymer as measured by an optical waveguide interferometer is further disclosed.

Methods of measuring the diffusion rate and partition coefficient of an analyte into a polymer and methods of forming a filter media

A Hall device is formed from a generally rectangular body of material exhibiting the Hall effect, with two excitation electrodes disposed along opposite edges of the device. Two Hall output voltage electrodes are disposed along one of the remaining edges of the main body and at least one additional output electrode is disposed on the edge of the main body opposite the first pair of electrodes. At least two of the output electrodes are offset from a centerline drawn through the electrical midpoint of the main body. By deliberately offsetting the Hall voltage output electrodes from the centerline the first and second order voltage offsets due to inhomogeneities of the Hall material and mask misalignment are eliminated or easily compensated.

Structure for Hall device for compensation of first and second order

Growing community of inventors

Atlanta, GA, United States of America

Daniel P Campbell