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Nixie Digital MultiMeter

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LAN_403

tobias

Sat Jun 09 2012, 09:24PM

Registered Member #1956 Joined: Wed Feb 04 2009, 01:22PM
Location: Jersey City
Posts: 172

Slowly advancing. Now I am able to take RMS measurements. It works for any frequency up to 60 Hz. I did not tested more than that.
Sampling is around 2,7 kHz. I am confident I can tweak it to >4kHz.

The pictures show a test done with a half-wave rectified 60 Hz from a small transformer.

I compared the measurements with my Rigol1062:
As soon as I have a better code I will plot measurement error and deviation for 95% confidence interval. The Rigol is not calibrated. But who cares!? =)

Rms Waveform

EDIT: Readings are in cV. =)

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