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TODAY’S PATENT – HYDROGEN SENSOR

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TODAY’S PATENT – HYDROGEN SENSOR

The HYDROGEN SENSOR was invented by James H. Terhune (San Jose, CA), John P. Sturtz (San Jose, CA), John P. Neissel (San Jose, CA) on 15th February 1983, bearing the patent number US4373375A.

The invention relates to a device for determining the concentration of hydrogen in a fluid atmosphere. There is a variety of applications for detecting and monitoring the presence of hydrogen.

A hydrogen sensing device for determining the concentration of hydrogen in a fluid atmosphere consists of a sealed chamber formed with a window which selectively allows diffusion of hydrogen into the chamber. Alpha particles from a source contained in the chamber ionize the hydrogen and a pair of polarized electrodes collect the resulting electrons to provide a current which is a function of the hydrogen concentration in the chamber. A second window permeable to helium allows escape of the helium from the chamber that is formed by the combination of electrons with alpha particles therein.

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    Tanya Janghel

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