Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PRESSURE GAUGE AND THERMAL TYPE FLOWMETER
Document Type and Number:
Japanese Patent JP3961911
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a pressure gauge that has a small size, low cost, and simple constitution.
SOLUTION: An ambient temperature sensor Rr detects the temperature of a gas. A heater element Rh generates heat so that the temperature of the element Rh may become higher than the temperature detected by means of the sensor Rr by a fixed temperature. A heater driving electric quantity detecting means 5a detects the driving electric quantity supplied to the heater element Rh. A pressure calculating means 5b finds the pressure of a gas which is in contact with the sensor Rr and element Rh based on the driving electric quantity.


Inventors:
Seo, Masami
Hayashi, Yasue
Application Number:
JP2002000249701
Publication Date:
May 25, 2007
Filing Date:
August 28, 2002
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
YAMATAKE CORP
International Classes:
G01F1/698; G01L11/00; (IPC1-7): G01L11/00; G01F1/698
Domestic Patent References:
JP61173043U
JP8507863A
JP58167435U
JP2001012988A
JP2003106886A
JP10197309A
JP2001324364A
Attorney, Agent or Firm:
山川 政樹