Hioki MEMORY HiCORDER 8855, Instruction Manual

Page: 232 / 264

APPENDIX 10
────────────────────────────────────────────────────
Appendix 3 Reference
────────────────────────────────────────────────────
Appendix 3.7 Waveform Parameter Calculation Details
AVE
=
n
di
Σ
i = 1
1
n
RMS = di
2
n
i = 1
1
n
Σ
(1) Average value
Calculates the average value (V) of the waveform data.
AVE average value
n number of data samples
di i-th data of the source channel
(2) RMS value
Calculates the RMS (effective) value (V) of the waveform data. When
scaling is used, the value is calculated after scaling.
AVE effective value
n number of data samples
di i-th data of the source channel
(3) Peak-to-peak value
Calculates the peak-to-peak (maximum-minimum) value of the waveform
data.
(4) Maximum value
Calculates the maximum value of the waveform.
(5) Time to maximum value
Calculates the time interval from the triggering point to the maximum value
of the waveform (in seconds).
If there are two maximum value points, the time to the first point is
calculated.
(6) Minimum value
Calculates the minimum value of the waveform.
(7) Time to minimum value
Calculates the time interval from the triggering point to the minimum value
of the waveform (in seconds).
If there are two minimum value points, the time to the first point is
calculated.
(8) Period
(9) Frequency
Displays the period (s) and frequency (Hz) of the signal waveform.
The calculation is performed by determining the middle point of the signal
amplitude and then measuring the interval from the point when that level is
crossed (in rising or falling direction) to the point when it is next crossed.