Title:
圧力センサ、水位検出装置及び給湯システム
Document Type and Number:
Japanese Patent JP4249891
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pressure sensor which can detect the pressure accurately with no restriction on the installing position in the casing, and a water level detector in which pressure variation in the casing causes no measurement error. SOLUTION: In order to suppress back pressure variation in a pressure sensor (74) caused by pressure variation in the casing (4) of the pressure sensor, back pressure at the sensor section (114) is opened to the outside of the casing. Consequently, the effect of pressure variation in the casing is avoided and measurement error of pressure detection or water level detection is suppressed.
Inventors:
Takayuki Koike
Teruyuki Mochizuki
Teruyuki Mochizuki
Application Number:
JP2000342961A
Publication Date:
April 08, 2009
Filing Date:
November 10, 2000
Export Citation:
Assignee:
Takagi Sangyo Co., Ltd.
International Classes:
G01F23/18; F24H1/00; G01L13/00
Domestic Patent References:
| JP8036956A | ||||
| JP62056830A | ||||
| JP3065615A | ||||
| JP3011583U | ||||
| JP9152365A | ||||
| JP6281518A |
Attorney, Agent or Firm:
Shoichi Uemoto