Electricity: measuring and testing – Electrolyte properties – Using a ph determining device
Patent
1994-03-22
1996-06-04
Wieder, Kenneth A.
Electricity: measuring and testing
Electrolyte properties
Using a ph determining device
324698, 340438, G01R 2708
Patent
active
055236928
ABSTRACT:
An oil deterioration detector comprising a sensitive electrode whose electric potential varies in response to acidity and/or basicity of oil to be measured, and a reference electrode associated with this sensitive electrode. An electrically conductive housing accommodates the sensitive electrode and the reference electrode together with the oil. A potential difference detector detects oil deterioration by measuring a potential difference between the sensitive electrode and the reference electrode. And, an insulating member is interposed between these electrodes and the electrically conductive housing for electrically insulating these electrodes from the electrically conductive housing. The reference electrode is grounded together with the electrically conductive housing. An insulating, hydrophilic porous member would be interposed between the sensitive electrode and the reference electrode.
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Fujii Tetsuo
Kuroyanagi Susumu
Naito Kiwamu
Nozawa Masaei
Okada Kingo
Nippondenso Co. Ltd.
Tobin Christopher M.
Wieder Kenneth A.
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