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Title:
DEVICE AND METHOD FOR MEASURING AIR LEAK FOR EXHAUST VALVE FOR HEMADYNAMOMETER
Document Type and Number:
Japanese Patent JP2007007038
Kind Code:
A
Abstract:

To shorten a period of time for measuring the air leakage of an exhaust valve for a hemadynamometer and to improve the measurement precision therefor.

At the side of the one end of an air tube 8 having the exhaust valve 2 for the hemadynamometer mounted to the other end, an electromagnetic valve 5 for supplying air is provided. Between the electromagnetic valve 5 and the exhaust valve 2, an air tank 7 with a pressure sensor 9 is provided, and tube internal pressure P being a sensor detected value is displayed on a monitor 11 through an A/D converter 10 etc. In the vicinity of the other end of the air tube 8, an electromagnetic valve 15 for holding tube internal pressure is provided. Each time of finishing measurement, the electromagnetic valve 15 is closed, and the next measurement is carried out while the tube internal pressure P is sealed and held as it is.


Inventors:
YAMAKAWA MUNEHARU
Application Number:
JP2005189807A
Publication Date:
January 18, 2007
Filing Date:
June 29, 2005
Export Citation:
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Assignee:
MITSUMI ELECTRIC CO
International Classes:
A61B5/022
Domestic Patent References:
JP2003301777A2003-10-24
JPH1142215A1999-02-16
JP2002078686A2002-03-19
JP2004160186A2004-06-10
JPH05228120A1993-09-07
Attorney, Agent or Firm:
Takayoshi Hayashi



 
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