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Title: Flexible high-temperature pH probe

Abstract

A flexible pH probe device is provided for use in hot water and other high temperature environments up to about 590.degree. F. The pH probe includes a flexible, inert tubular probe member, an oxygen anion conducting, solid state electrolyte plug located at the distal end of the tubular member, oxide powder disposed at the distal end of the tubular member; a metal wire extending along the tubular member and having a distal end in contact with the oxide powder so as to form therewith an internal reference electrode; and a compression fitting forming a pressure boundary seal around a portion of the tubular member remote from the distal end thereof. Preferably, the tubular member is made of polytetrafluoroethylene, and the solid state electrolyte plug is made of stabilized zirconia. The flexibility of the probe member enables placement of the electrode into the area of interest, including around corners, into confined areas and the like.

Inventors:
 [1];  [2];  [3]
  1. Scotia, NY
  2. Cambridge, MA
  3. Schenectady, NY
Issue Date:
Research Org.:
KAPL Inc
Sponsoring Org.:
USDOE
OSTI Identifier:
921319
Patent Number(s):
6551478
Application Number:
09/828,209
Assignee:
The United States of America as represented by the Department of Energy (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC12-76SN00052
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Bielawski, John C, Outwater, John O, and Halbfinger, George P. Flexible high-temperature pH probe. United States: N. p., 2003. Web.
Bielawski, John C, Outwater, John O, & Halbfinger, George P. Flexible high-temperature pH probe. United States.
Bielawski, John C, Outwater, John O, and Halbfinger, George P. Tue . "Flexible high-temperature pH probe". United States. https://www.osti.gov/servlets/purl/921319.
@article{osti_921319,
title = {Flexible high-temperature pH probe},
author = {Bielawski, John C and Outwater, John O and Halbfinger, George P},
abstractNote = {A flexible pH probe device is provided for use in hot water and other high temperature environments up to about 590.degree. F. The pH probe includes a flexible, inert tubular probe member, an oxygen anion conducting, solid state electrolyte plug located at the distal end of the tubular member, oxide powder disposed at the distal end of the tubular member; a metal wire extending along the tubular member and having a distal end in contact with the oxide powder so as to form therewith an internal reference electrode; and a compression fitting forming a pressure boundary seal around a portion of the tubular member remote from the distal end thereof. Preferably, the tubular member is made of polytetrafluoroethylene, and the solid state electrolyte plug is made of stabilized zirconia. The flexibility of the probe member enables placement of the electrode into the area of interest, including around corners, into confined areas and the like.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {4}
}

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Works referenced in this record:

A New Membrane-Type pH Sensor for Use in High Temperature-High Pressure Water
journal, January 1980