Chemistry: analytical and immunological testing – Measurement of electrical or magnetic property or thermal... – By means of a solid body in contact with a fluid
Patent
1984-05-07
1987-01-20
Turk, Arnold
Chemistry: analytical and immunological testing
Measurement of electrical or magnetic property or thermal...
By means of a solid body in contact with a fluid
73 23, 73DIG4, 422 88, 422 98, 436136, 436167, G01N 2700, G01N 3100
Patent
active
046379878
ABSTRACT:
Method and apparatus which can provide continuous monitoring of the partial pressure of one or more gases in an atmosphere or feed stream, over an indefinite period of time and at a minimal cost. The method and apparatus of the present invention operates by monitoring the change in frequency of a piezoelectric element which has been coated with a film formed from manganese tertiary phosphine polymer complex. As the polymer absorbs or releases gas the frequency of the piezoelectric device will be altered.
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Krug William
Minten Karl
Edgell G. P.
Gould Inc.
Sachs E. E.
Turk Arnold
Walder J. M.
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