Method and apparatus for measuring moisture content in a gas
AssigneeMillipore Corporation
InventorJohn E. Pillion
Life of this patent
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Abstract
A device for measuring moisture concentration in a gas is provided which includes a sensing device capable of producing physical response to an energy input and having at least one surface coated with a metal hydroxide capable of adsorbing moisture. The metal hydroxide is derived from a metal coating on the sensing device.
Claims18
A sensing device for measuring water content in a stream of gas which comprises:
- a sensing device having an effective mass of a coating of a metal hydroxide composition of material formed in-situ derived from a metal composition by a conversion reaction of the metal composition with moisture in said gas stream, said coating having a mass which permits said material to produce a measurable physical response to energy input to said sensing device and
- means for applying energy to said sensing device and means for measuring said physical response.
The method for measuring water content in a gas stream which comprises contacting said gas stream with a sensing device having an effective mass of a metal hydroxide coating formed in-situ derived from a metal composition of material by a conversion reaction of the metal composition with moisture in said gas stream, said coating having a mass which permits said material to produce a measurable physical response to energy input to said sensing device,
- applying energy to said sensing device, and
- measuring said physical response and comparing said physical response to a standard relationship correlating said physical response to moisture content in said gas stream.
Dependencies are inferred from the claim text.