Title:
MEASURING ELEMENT FOR FLOW MEASUREMENT DEVICE OF FLUID MEDIUM
Document Type and Number:
Japanese Patent JP3468820
Kind Code:
B2
Abstract:
PURPOSE: To provide a measuring element for a device which measures the flow rate of the fluid medium, for example the amount of intake air of internal combustion engine.
CONSTITUTION: A conventional measuring element for measuring the flow of the fluid medium comprises a substrate having a conspicuously narrow notch. A measurement resistance is formed on a tongue body at the downstream separated from the notch. The notch has the width substantially corresponding to the thickness of the substrate. The fluctuation of the flow is often taken place when the amount in the intake area of the internal combustion engine, is measured. This remarkably damages the measurement result by the partial back flow, when the pulsating flow is measured. A measuring element has a conspicuously wide notch 50, a substrate 15 is divided into two tongue bodies 40, 41, and the notch has the width of at least 30-50% of the total width of the substrate 15, thereby the pulsating flow can be uniformly measured with high accuracy, by the aerodynamic compensation.
More Like This:
Inventors:
Uwe Konzermann
Application Number:
JP4274194A
Publication Date:
November 17, 2003
Filing Date:
March 14, 1994
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
G01F1/68; G01F1/684; G01F1/692; G01F1/698; G01K13/02; G01P5/12; (IPC1-7): G01F1/68; G01P5/12
Domestic Patent References:
| JP62103521A | ||||
| JP2245617A | ||||
| JP2110826U |
Attorney, Agent or Firm:
Toshio Yano (2 outside)