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Breakthrough in Reverse Flow Detection - A New Mass Air Flow Meter Using Micro Silicon Technology
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English
Abstract
A new mass air flow meter, using a sensor element based on micro silicon technology, is presented. The sensor is able to detect the amount and direction of air flow. It is located in an aerodynamic bypass, which acts as a nonlinear filter. This enables the mass air flow meter to correctly determine the air mass aspirated by a four cylinder engine, even in the case where, due to strong oscillations of the flow, timewise backflow occurs near the measuring position. Results of laboratory and engine tests will be presented.
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Citation
Konzelmann, U., Hecht, H., and Lembke, M., "Breakthrough in Reverse Flow Detection - A New Mass Air Flow Meter Using Micro Silicon Technology," SAE Technical Paper 950433, 1995, https://doi.org/10.4271/950433.Also In
References
- Sauer R. Hot wire mass meter SAE 800468
- Sauer R. Hot-film mass air meter - a low-cost approach to intake air measurement SAE 880560