Patent · US Expired

Measuring probe for determining volatile consitituents in a liquid medium

US4869873A · kind A · utility

6Cited by

3References

13Claims

0Family size

Assignee

Dr. W. Ingold AG · CH

Inventors

Joachim Klein · Hochspeyer, DE
Klaus-Dieter Vorlop · Braunschweig, DE
Jurgen W. Becke · Oebisfelde, DE

Key dates

Filing date	Aug 2, 1987
Grant date	Sep 26, 1989
Priority date	—
Expiry date	Aug 2, 2007

Classification

Technology area (CPC G)Physics
CPC primaryG01N27/16
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The measuring probe is equipped with a pellistor and renders possible directly determining in a trouble-free manner volatile constituents which are contained in a liquid medium to be investigated and which can be chemically converted with an accompanying heat effect. Heating devices are provided and, due to the prevention of condensate formation, greatly contribute to obtaining high measuring precision. The response time of the measuring probe can also be significantly reduced by heating a membrane which separates a measuring space containing the pellistor from the liquid medium to be investigated. The measuring probe can be used with advantage for monitoring microbiological processes, for example, in a fermenter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.