SEFRAM DAS220, User Manual

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Page 6.4
Falling edge
T
1
= 90% Amplitude
T
2
= 10% Amplitude
T
fall
= T
2
– T
1
Width of
positive
impulsion
Measurement of the time of 1
st
positive pulse. It is measured at
50% of amplitude
Width of
negative
impulsion
Measurement of the time of 1
st
negative pulse. It is measured at
50% of amplitude
Positive cyclic
ratio
period
duration pulse positive
Negative cyclic
ratio
period
duration pulse negative
Average


 
N
i
i
V
N
Aver
1
1
N : total number of dots
Calculation on the
whole graphic range
RMS
 



N
i
i
V
N
RMS
1
2
1
Calculation on the
whole graphic range
Standard
deviation
 


 
N
i
i
V V
N
S
1
2
1
Calculation on the
whole graphic range
T
1
T
2