Mailinglist Archive: opensuse (3572 mails)

[James Knott <james.knott@xxxxxxxxxx>]

Per Jessen wrote:
> Carlos E. R. wrote:
>
> > > >  I'm using one of these:
> http://www.order.conrad.com/xl/1000_1999/1200/1250/1253/125319_AB_05_FB.EPS.jpg
> > > I would look for a device with a needle rather than
> > > a digital readout.
> > I don't think you can measure true rms with a coil and needle. :-?
> > It was measured by thermal effects...
>
> Carlos, Aaron only said "readout", which is unrelated to how it is
> measured.  The advantage of an analog readout over a digital is that it
> is possible for a human to see spikes/changes more clearly.  
>
>
>
> /Per Jessen, Zürich

Of course, depending on how fast that spike occurs, the needle won't be 
able to follow it.  There are some digital meters that can be configured 
to display the peak value.

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