Method of confirming reception of drops of water and powder...

Details Method of confirming reception of drops of water and powder... Method of confirming reception of drops of water and powder...

2007-01-23

2009-12-15

Noland, Thomas P (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Gas or liquid analyzer

C205S788500, C252S408100

Reexamination Certificate

active

07631535

ABSTRACT:
A method of confirming reception of a drop of water has the steps of applying a powder on a surface of a gas sensing element, placing the element in a gas passage so as to expose the surface of the element to the gas passage, causing a measured gas to flow through the gas passage, receiving drops of water included in the measured gas on limited areas of the surface of the element such that the drops of water take out the powder applied on the limited areas from the element, and confirming the reception of the drops of water on the surface of the element. The powder has a melting point or a sublimation temperature equal to or higher than 1000° C.

REFERENCES:
patent: 4902401 (1990-02-01), Lin et al.
patent: 2003/0159928 (2003-08-01), Kojima et al.
patent: 2003-322632 (2003-11-01), None

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