Method and apparatus for the protection of analyzers and other s

Details Method and apparatus for the protection of analyzers and other s Method and apparatus for the protection of analyzers and other s

1984-06-13

1985-08-20

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

With protective separator

73702, 73756, 55 15, 55277, G01L 708, G01L 912

Patent

active

045356335

ABSTRACT:
A method and an apparatus which, when interposed or integrated into sensitive pressure analyzers of pressure and vacuum measuring engineering equipment, prevent the intrusion of corrosive or condensable gases, or vapors, into the inside of the analyzer, and hold back soiling (dust and dirt) particles contained in gaseous measuring media. The present development contemplates a low-frequency oscillating diaphragm body, disposed inside of a pressure, or vacuum sealed, duct housing, in such a way, that although it optically diametrically blocks the light tube connection, it allows static pressure compensation via one or several bypass boreholes; it forces, by its energy of motion, directly impinging soiling dust and dirt particles, and gas or vapor molecules, to change their original direction of motion. The present protection arrangement is utilizable not only in pressure ranges above atmospheric pressure, but also in vacuum up to an absolute pressure of <10 Pa. It can be utilized as a separate component, but it can also be integrated into analyzers, especially into modulation analyzers. The protection method and apparatus safeguards the continued and linear measurement of gas pressure over a great measuring range.

REFERENCES:
patent: 3425281 (1969-02-01), Barz

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