H2scan Corporation

An Trong Nguyen Le

Vikas Lakhotia

G Jordan Maclay

Timothy Wayne Howard

Matthew Robert Phillipps

A method for measuring hydrogen concentration in a gas includes exposing a PdNi alloy thin-film gas sensor to the gas, alternately controlling the temperature of the PdNi alloy thin-film gas sensor between a first temperature for a first period of time and a second temperature for a second period of time while the PdNi alloy thin-film sensor is exposed to the gas, continuously monitoring the resistance of the PdNi alloy thin-film gas sensor during the first and second periods of time, and calculating the hydrogen concentration as a function of a transient in the resistance of the PdNi alloy thin-film sensor measured at a time that the temperature transitions between the first temperature and the second temperature.

Method for measuring gas concentrations based on sensor response times

An apparatus and method for sensing the amount of a gas in a fluid are disclosed. The apparatus may include a gas sensor, a temperature sensor, a first temperature adjusting unit, or a second temperature adjusting unit. The first and second temperature adjusting units may control the temperature of the gas sensor. The first and second temperature adjusting units may each be used to control the temperature of the gas sensor. According to one technique, they may be used simultaneously to control the temperature of the gas sensor. The temperature sensor may be used to sense the temperature of the gas when it has stabilized to the fluid temperature in which it is being used and the temperature of the gas sensor when it is being controlled by at least one of the first or second temperature adjusting units.

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Stevenson Ranch, CA, United States of America

An Trong Nguyen Le