Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1986-02-25
1987-05-12
Levy, Stewart J.
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
G01M 300
Patent
active
046639594
ABSTRACT:
A method is disclosed for calibrating transducers for determining gas concentrations, in particular for the transcutaneous measurement of blood gases. In the method, the testing chamber is exposed on its measuring surface, through an overlay, to a known gas concentration. The method provides for a simpler application of the calibration medium to the measuring surface of the transducer, such that an overlay provided with substances required for furnishing the known gas concentration is applied directly onto the measuring surface of the testing chamber, covering it. An overlay is also disclosed and is embodied as a paper strip having two impregnated zones, separated from one another by an intermediate piece provided with a coating.
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patent: 4116336 (1978-09-01), Sorensen et al.
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patent: 4266941 (1981-05-01), Sullivan
patent: 4269684 (1981-05-01), Zick
patent: 4458686 (1984-07-01), Clark, Jr.
American Heritage Dictionary, 1982.
Busack Hans-Jurgen
Kaross Klaus
Lungu Mihail
Rogge Bernd
Dragerwerk Aktiengesellschaft
Levy Stewart J.
Ottesen Walter
Raevis Robert R.
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