Tektronix MSO46 — измерение гармоник и входной емкости в электрических системах [583/628]

Rel[i] is the Real component of the harmonics (Cos frequency).

Img[i] is the Imaginary component of the harmonics (Sin frequency).

If, Rel [k] < 0 & Im[k] < 0 Phase[k] = Phase[k] - π

If, Rel[k] < 0 & Im[k] > 0 Phase[k] = Phase[k] + π

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Partial Odd Harmonics Current (POHC(M)):

For the 21st standard higher odd order harmonics, the average values obtained for each individual odd harmonic over the

full observation period, are calculated from the acquired waveform. The measured partial odd harmonic current does not

exceed the partial odd harmonic current which can be calculated from the applicable limits.

Where:

M is the measured value.

POHC(S) and POHC(L) is the (S) is pass and fail status based on (L) limits.

Input Capacitance algorithm

Input capacitance measures the input capacitance of a DUT using the input voltage and current signals. Supports annotation

where you can navigate between Previous and Next regions from the Results badge.

The equation for input capacitance is c = q/v. where:

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c - capacitance in farads

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q - accumulated charge, which is the integration of the current waveform

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v - peak-peak voltage

Inrush Current algorithm

Inrush Current measures the peak value of the inrush current of the DUT. It is a single source current measurement. Supports

annotation where you can navigate between Previous and Next regions from the Results badge.

Measurement algorithms

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