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Browse Prior Art Database

Hydrochloric Acid Monitoring Device

IP.com Disclosure Number: IPCOM000048559D
Original Publication Date: 1982-Feb-01
Included in the Prior Art Database: 2005-Feb-08
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Davis, A: AUTHOR

Abstract

This article discloses a capacitive sensing tool for continuously monitoring hydrochloric acid concentrations in an oxidation gas passing through the tube.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

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Hydrochloric Acid Monitoring Device

This article discloses a capacitive sensing tool for continuously monitoring hydrochloric acid concentrations in an oxidation gas passing through the tube.

A pair of curved capacitive plates are rigidly affixed around the outside of the tube carrying the gas flow that is to be monitored. The probe is attached to a highly accurate capacitance meter or bridge and measures the permittivity of the gas flowing through the tube which changes as a function of the amount of hydrochloric vapor being carried in the oxygen gas. The instrument is calibrated by first measuring the capacitance with 100 percent oxygen in the tube, then measuring the capacitance with 100 percent hydrochloric acid in the tube, and finally measuring the capacitance with various known percentage combinations of hydrochloric acid carried in the oxygen within the tube.

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