Figure 3.1 Stages in electrical signal measuring system.

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# Figure 3.1 Stages in electrical signal measuring system. - PowerPoint PPT Presentation

Figure 3.1 Stages in electrical signal measuring system. Figure 3.2 Generic voltage amplifier. Figure 3.3 Amplifier frequency response. Figure 3.4 Frequency distortion of a square wave due to high-frequency attenuation. Figure 3.5 Effect of phase angle on signal.

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Figure 3.7 Effect on signal of linear and nonlinear phase-angle variation with frequency: (a) original signal; (b) phase angle varies linearly with frequency; (c) phase angle varies nonlinearly with frequency.

Figure 3.9 Combined model of (a) input source, (b) amplifier, and (c) output load. (Based on Franco, 2002.)
Figure 3.16 Categories of electrical filters: (a) lowpass; (b) highpass; (c) bandpass; (d) bandstop.
Figure 3.19 Comparison of Butterworth and Bessel phase-angle variation with frequency.
Figure 3.21 Lowpass Butterworth filter using op-amp: (a) op-amp circuit; (b) frequency response.
Figure 3.22 First-order Butterworth highpass filter using an op-amp: (a) op-amp circuit; (b) frequency response.
Figure 3.26 Digital multimeter with a digital voltmeter as a mode of operation. (Courtesy of Triplett Corp.)