Keithley 197 - Comparison of Average and TRMS Meter Readings

Table 2-7. Comparison of Average and TRMS Meter Readings
Waveform
Half-Wave Rectified Sine
Full-Wave Rectified Sine
+ lo- - 0 -m-
Square
+lo-:%
Rectified Square Wave
+ 10- -
00
Rectangular Pulse
+1°53L O-N k-trlT
ll: 'DUTY CYCLE'
Triangular Sawtooth
Ac Coupled
Peak
Value
1ov
1 ov
1 ov
1 ov
1 ov
1 ov
1 ov
RMS
Value
7.07V
5.00V
7.07V
1o.oov
5.00V
1ov
5.77v
Average
Responding
Meter Reading
7.07V
3.53v
7.07V
11.1ov
5.55v
11.1V.
q
5.55v
Ac Coupled
TRMS
Meter
Reading
7.07V
5.00V
7.07V
1o.oov
5.00V
1ov
5.77v
Averaging
Meter
Percent Error
0%
29.4%
0%
11%
1 1 7c
1.11 - 1) x 100%
3.8%
2-16
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