Topic

dB-axis

Dieses Thema hat 3 Antworten sowie 2 Teilnehmer und wurde zuletzt vor vor 20 Jahren, 4 Monaten von tu@gl-group.com aktualisiert.

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14.01.2005 um 22:31 Uhr #34134

tu@gl-group.com
Teilnehmer

Which is the easiest way to get a dB-Y-axis (for example 20*log(y/yref)??

I found no option in the properties for axes to switch from absolut-values to dB-values.

If there is no, a proposal for next updates could be the following:

A new item in properties for y-Axis with option “dB” . The user have to input a reference-value for the specified datas and the factor to multiplicate with (“20” e.g.)………

14.01.2005 um 23:40 Uhr #34132

Bernhard Kantz
Teilnehmer

You can scale your data in an easy way. Create a formula named “_Scaled” with the following content:

Arguments data
Dim yref

yref = 1
20*log10(data/yref)

You can now scale your data sets by selecting them in the FlexPro Explorer and simply dragging and dropping them onto the name of the above formula. FlexPro then creates a new object for each dataset which returns the scaled data and whose unit is set to “mA”.

support@weisang.com

15.01.2005 um 00:47 Uhr #34133

tu@gl-group.com
Teilnehmer

Thanks….

That’s the way i do it till now.

It should be only a property of axes (like “log, ln, lin, octave” etc.) . No calculation of data in
additional rows of the sheet….

15.01.2005 um 00:56 Uhr #34131

tu@gl-group.com
Teilnehmer

Which is the easiest way to get a dB-Y-axis (for example 20*log(y/yref)??

I found no option in the properties for axes to switch from absolut-values to dB-values.

If there is no, a proposal for next updates could be the following:

A new item in properties for y-Axis with option “dB” . The user have to input a reference-value for the specified datas and the factor to multiplicate with (“20” e.g.)………
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