| 摘要 |
<P>PROBLEM TO BE SOLVED: To stably obtain potential difference output with good reproducibility in response to the deterioration of oil. <P>SOLUTION: An electrode pair 20 for detecting the deterioration of oil has a sensitive electrode 40 responding to the deterioration of the oil 4 and a non-response electrode 30 different from the sensitive electrode 40, and detects the potential difference between the potential, which changes responding to the deterioration of the oil 4 of the sensitive electrode 40, and the potential of the non-response electrode 30. The sensitive electrode 40 comprises a first electrode material, whose electric potential changes in response to a specific additive 4a added to the oil 4 and to the concentration of the specific additive 4a changing with the deterioration of the oil 4 The non-sensitive electrode 30 comprises a second electrode material not reacted with the additive. <P>COPYRIGHT: (C)2007,JPO&INPIT |
