AC1 Fundamentals Unit 2 – AC Measurements
NEW TERMS AND WORDS
phase angle - the angle of separation between two ac waveforms of identical frequency.
peak-to-peak value - amplitude between opposite peaks of an ac waveform
(Vpk-pk = Vpk x 2).
peak value - maximum amplitude in either polarity of an ac waveform (Vpk = Vpk-pk/2).
effective value (rms) - an ac value that produces the same heating effect in a resistor as an
equivalent dc value does.
average value (avg) - the value obtained by dividing the sum of a number of quantities by the
number of quantities. For sine waves, Vavg = 0.637 x Vpk.
period - time required for an ac waveform to complete one cycle (T = 1/f).
EQUIPMENT REQUIRED
F.A.C.E.T. base unit
AC 1 FUNDAMENTALS circuit board
Multimeter
Oscilloscope, dual trace
Generator, sine wave