Title:
DEVICE FOR MEASURING QUANTITY OF FLOWING MEDIUM
Document Type and Number:
Japanese Patent JPS5593020
Kind Code:
A
Abstract:
An apparatus for measuring the mass of a flowing medium which utilizes a temperature-dependent resistor disposed in the flow of the medium. The temperature- dependent resistor includes a carrier and a resistor film disposed on the carrier. The temperature and/or resistance of the resistor film is governed by the mass of the flowing medium and serves as the basis for the generation of a manipulated variable which is a standard for the mass of the flowing medium. The apparatus also utilizes a preceding body aligned longitudinally with the carrier directly upstream of the carrier in the direction of the flow of the medium. The preceding body has a length such that a particular boundary layer state prevails about the temperature-dependent resistor and the heat-transfer coefficient of the resistor film is influenced in accordance with the mass of the flowing medium.
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Inventors:
HAINTSU RAUNTAABATSUHA
Application Number:
JP16953579A
Publication Date:
July 15, 1980
Filing Date:
December 27, 1979
Export Citation:
Assignee:
BOSCH GMBH ROBERT
International Classes:
G01F1/68; F02D41/18; G01F1/684; G01F1/692; G01P5/12; (IPC1-7): G01F1/68; G01P5/10