Title :
An ion-drag air mass-flow sensor for automotive applications
Author :
Malczynski, G.W. ; Schroeder, Thaddeus
Author_Institution :
Gen. Motors Res. Labs., Warren, MI, USA
Abstract :
An air-flow meter, developed primarily for the measurement of intake air flow into an internal combustion engine, is described. The well-known process of corona ion deflection in a gas flow together with proper electrode geometry and a detection scheme provides the conceptual basis for a humidity-insensitive ionic air-flow sensor. Output characteristics of the sensor, such as response time and range of operation, are discussed and compared with those of a production hot-wire meter for the type that is currently used with electronic fuel injection systems
Keywords :
automotive electronics; electric sensing devices; flow measurement; internal combustion engines; air-flow meter; automotive applications; corona ion deflection; electrode geometry; electronic fuel injection systems; hot-wire meter; humidity-insensitive ionic air-flow sensor; intake air flow; internal combustion engine; ion-drag air mass-flow sensor; response time; Automotive applications; Corona; Electrodes; Fluid flow; Fluid flow measurement; Gas detectors; Geometry; Internal combustion engines; Sensor phenomena and characterization; Sensor systems;
Journal_Title :
Industry Applications, IEEE Transactions on
