Null Meter

Analog Null Meter/Differential Voltmeter

Steve Toner

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Description
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Description

A proper analog null meter measuring down to 10 μV full scale.

Files

Schematic.pdf Adobe Portable Document Format - 34.53 kB - 02/09/2023 at 01:59		Preview

Project Logs

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Null Meter Prototype
Steve Toner • 05/14/2021 at 00:35 • 0 comments

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Discussions

David Mason wrote 02/06/2023 at 21:48

Steve, I just found your null Meter project. I've started my own version of Conrad Hoffman's project, but I like yours a bit better because of the additional ranges and the differental meter function. Would you share the project files, especially the PCB files. I use Diptrace primarily, but also use Eagle.

Are you sure? yes | no

Steve Toner wrote 02/09/2023 at 02:39

I've uploaded a PDF of the schematic - as built. As noted in the video, an additional resistor would be required for best accuracy on the 1V range, but that is not shown here.

I used ExpressPCB for this, so I don't think the PCB files would do you any good as they are in a proprietary format.

Are you sure? yes | no