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SENSORS AND ACTUATORS 6
Figure 6.2
Mass Air Flow Sensor
During each cycle of the electronic gate, the BC contains a binary
number given by the product of the v/f frequency and the time interval. For
example, if the mass air flow were such that the v/f frequency were 1000 cycles/
sec and the switch were closed for .1 sec, then the BC would contain the binary
equivalent of decimal 100 (i.e., 1000 × .1 = 100). If the mass air flow increased
UNDERSTANDING AUTOMOTIVE ELECTRONICS 191
