H2scan Corporation

Timothy Wayne Howard

Carlton Salter

Robert Pendergrass

Vikas Lakhotia

An Trong Nguyen Le

Matthew Robert Phillipps

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.

Gas sensing systems and methods

A system for sensing a gas stream constituent comprises: (a) a thermally conductive, electrically insulative substrate, (b) a gas-sensing element mounted on the substrate and capable of sensing the constituent, (c) a reference element mounted on the substrate having electrical properties congruent with the gas-sensing element and being insensitive to the constituent, (d) an electronic circuit interconnecting the gas-sensing element and the reference element. The circuit is capable of actuating both of the elements and measuring the voltage difference between the elements. The voltage difference is proportional to the concentration of the constituent in the gas stream.

Method and system for sensing gas incorporating an integrated reference element

A gas sensor assembly detects the presence of a constituent in a first gas stream. The assembly comprises: (a) a flexible circuit having a pair of oppositely-facing surfaces, (b) a sensor mounted on one surface of the flex circuit, the sensor electrically connected to conductors in the flex circuit, and (c) a channel for directing a second gas stream across the flex circuit surface facing away from the sensor, the channel formed at least in part by the flex circuit surface facing away from the sensor. The first and second gas streams can be derived from a common gas stream. In operation, thermal conductivity between the sensor and neighboring heat-conducting structures components is reduced, thereby reducing sensor electric power consumption.

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Canyon Country, CA, United States of America

Timothy Wayne Howard