pH measuring system
First Claim
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1. A pH measuring electrode comprising:
- probe means for defining a first lumen and a second lumen with adjacent first ends;
a sensor electrode secured to the first end of the first lumen and exposed at the first end of the first lumen;
an electric conductor leading from the sensor electrode through the first lumen including means for electrical connection to an electrical meter for measuring an electrical value indicative of the pH to be measured;
a fibrous thread material extending along the second lumen;
means for electrically connecting the thread material to the electrical meter; and
porous means closing the first end of the second lumen and electrically connected to the thread material.
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Abstract
A PH measuring device having a first and second lumen with adjacent first ends, wherein the first lumen has a sensor electrode secured to the first end and the second lumen has a fibrous absorbent plug closing the first end, with an absorbent thread attached to the plug, and extending through the second lumen. An electric conductor connected to the sensor electrode extends through the first lumen to an electrical meter.
26 Citations
18 Claims
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1. A pH measuring electrode comprising:
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probe means for defining a first lumen and a second lumen with adjacent first ends; a sensor electrode secured to the first end of the first lumen and exposed at the first end of the first lumen; an electric conductor leading from the sensor electrode through the first lumen including means for electrical connection to an electrical meter for measuring an electrical value indicative of the pH to be measured; a fibrous thread material extending along the second lumen; means for electrically connecting the thread material to the electrical meter; and porous means closing the first end of the second lumen and electrically connected to the thread material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A pH measuring electrode comprising:
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probe means for defining a first lumen and a second lumen with adjacent first ends; a sensor electrode secured to the first end of the first lumen and exposed at the first end of the first lumen; an electrical conductor leading from the sensor electrode through the first lumen including means for electrical connection to an electrical meter for measuring an electrical value indicative of the pH to be measured; a chamber connected to the second lumen, the chamber being arranged to receive an electrolytic liquid; electrical reference means in electrical connection with the electrolytic liquid means for electrically connecting the reference means to the electrical meter; and porous means closing the first end of the second lumen and electrically connected to the electrolytic liquid. - View Dependent Claims (17, 18)
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16. An electrode according to claim 16 wherein the porous means includes interstices impregnated with the liquid for allowing the liquid to provide conductivity through the porous means, the porous means preventing bleeding or leeching of the liquid.
Specification