Title:
WATER PRESSURE TYPE WATER LEVEL SENSOR
Document Type and Number:
Japanese Patent JP3169052
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a more highly reliable or inexpensive water level sensor.
SOLUTION: This sensor is provided with a sensor main body 1 whose pressure sensor 5 is incorporated into a housing 4 and a cable 12 where pressure equalizing air tubes 17 to offset influence of atmospheric pressure are integrally formed with electric or optical wiring 15, and is constituted so as to measure a depth of water by submerging the sensor main body 1 in a water treatment tank or the like. In this case, the air tubes 17 are incorporated by at least two pieces into the cable 12.
Inventors:
Yukio Murai
Sawasaki Seiji
Mihara Yoshimori
Ryoichi Shibayama
Kazunori Yamaguchi
Sawasaki Seiji
Mihara Yoshimori
Ryoichi Shibayama
Kazunori Yamaguchi
Application Number:
JP34514195A
Publication Date:
May 21, 2001
Filing Date:
December 07, 1995
Export Citation:
Assignee:
Ebara Corporation
Kuramo Electric Works Co., Ltd.
Kuramo Electric Works Co., Ltd.
International Classes:
G01F23/14; (IPC1-7): G01F23/14
Domestic Patent References:
| JP59104028U | ||||
| JP4102025U | ||||
| JP1132923U |
Attorney, Agent or Firm:
Isamu Watanabe (2 outside)
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