Title:
METHOD AND DEVICE FOR DETECTING WATER IN NON-AQUEOUS MEDIUM AND ACID IN PRESENCE OF WATER
Document Type and Number:
Japanese Patent JP2610775
Kind Code:
B2
Abstract:
PURPOSE: To provide a sensor, a monitor system and a method for manufacturing the sensor wherein the content of acid and water in a non-aqueous medium and the content of acid in presence of water are monitored.
CONSTITUTION: A sensor 20 comprises an insulating substrate 24, cross finger type electrodes 21 and 22 formed on the substrate, and a conductive polymer 23 formed on the cross finger type electrode so as to bridge between adjacent finger parts of the electrode. A monitor system having built-in sensor comprises a control means which measures a dielectric constant of the sensor and issues direction when a specified level is reached and a warning means which provides direction when a specified level is reached. Relating to the sensor, electrodes 21 and 22 are formed in cross finger type shape on the insulating substrate 24, and the conductive polymer 23 is electro-chemically formed by such sufficient amount as to bridge the adjacent finger parts of the electrode on the cross finger type electrode, and then the conductive polymer 23 is neutralized in insulation form.
Inventors:
Fredrick G. Yamagishi
Camille I Van Asto
Leroy Jay Miller
Camille I Van Asto
Leroy Jay Miller
Application Number:
JP19148093A
Publication Date:
May 14, 1997
Filing Date:
August 02, 1993
Export Citation:
Assignee:
HI Holdings Inc. DBA Hughes Electronics
International Classes:
G01N27/06; G01N27/12; G01N33/28; (IPC1-7): G01N27/12; G01N27/06
Domestic Patent References:
| JP6140552A |
Attorney, Agent or Firm:
Takehiko Suzue