FREQUENCY COUNTER AND METHOD OF COUNTING FREQUENCY OF A SIGNAL TO MINIMIZE EFFECTS OF DUTY CYCLE MODULATION

摘要

frequency counter with two fronts and method to minimize the effects of duty cycle modulation. in its simplest form, a meter to two tracks (50) includes a first counter (52) that accumulates clock pulses between successive amounts of reference areas of an input signal.an input signal is fed into a reversing switch (54), which reverses the signal square before sending it to a second counter (56), which is also the reference clock cycles between successive amounts of front reverse signal provided by the sensor.a summing junction (60) has the first and second counters counts so that a medium can be prepared by a divider (62), which divides the total count of two.this technique is used with a frequency counter with a clock (72) for integer values of total number of cycles of the signal provided by the sensor occurring during a sampling time is determined by the successive signals.