EEPower
Industry White Papers

Five Techniques for Fast, Accurate Power Integrity Measurements


Jan 14, 2026 by Rohde & Schwarz

Topics Covered
Power Integrity Basics: Measuring DC Rail Ripple & Tolerance
Optimize Viewing: Intensity, Infinite Persistence & Color Grading
Reduce Noise for Accurate Vpp Ripple Measurements
Achieve Sufficient Offset: AC Coupling vs. Built-In Offset Probing
Evaluate Switching Harmonics & EMI with FFT (Frequency-Domain Analysis)
Accelerate Measurement Time: Fast Update Rates & Efficient Workflows

eGuide Overview 

This eGuide offers practical tips for fast, accurate power integrity measurements, essential for modern electronics with lower power rail voltages and tighter tolerances. It covers five key techniques: optimizing viewing, reducing noise, ensuring sufficient offset, assessing switching and EMI, and accelerating measurements. The guide highlights the use of low-noise oscilloscopes, 1:1 probes with built-in offset, and proper settings such as vertical scaling and bandwidth limits. It also recommends frequency-domain analysis and fast update rates for more reliable results. Paired with the R&S®RT-ZPR20 power rail probe, R&S®RTO and R&S®RTE oscilloscopes deliver superior power integrity testing.

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