Title:
METHOD OF DETECTING MEASURAND OF FLUID MEDIUM AND MEASURING CIRCUIT
Document Type and Number:
Japanese Patent JPS63140921
Kind Code:
A
Abstract:
A method for determining a measurable variable of a flowing medium, in particular the flow velocity and/or the material properties, in which the temperature variation of a heated sensor is evaluated in an electronic measuring circuit for the determination of the variable. The measurement accuracy is improved in particular in the range of low flow velocities by heating the sensor with a heating pulse within at least one measurement period, and determining as a measured variable the time after which the sensor is cooled to at least a given temperature.
Inventors:
JIIKUFURIITO KISUKE
Application Number:
JP29223687A
Publication Date:
June 13, 1988
Filing Date:
November 20, 1987
Export Citation:
Assignee:
DRAEGERWERK AG
International Classes:
G01F1/68; A61B5/087; A61M16/00; G01F1/696; G01F1/698; G01F1/708; (IPC1-7): G01F1/68; G01F1/708
Domestic Patent References:
| JPS60178317A | 1985-09-12 | |||
| JPS6117019A | 1986-01-25 | |||
| JPS4845719A | 1973-06-29 |
Attorney, Agent or Firm:
Toshio Yano (1 outside)