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Author Topic: How to run a galvanometer?  (Read 1788 times)

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Offline somlioyTopic starter

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How to run a galvanometer?
« on: May 22, 2013, 07:41:18 pm »
I got one of these insulation monitors at work, and I want to replace the electronics in it with some custom stuff for another application. But I'm not quite sure how to drive the galvanometer , does anyone have a clue? Resistance measurements shows about 60ohms when the pointer is held still. Jumping up if moving.
« Last Edit: May 24, 2013, 12:35:46 pm by somlioy »
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Offline qno

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Re: How to run the analog pointer indicator
« Reply #1 on: May 22, 2013, 08:45:22 pm »
Usually they are controlled with current anywhere in the 0 to 100 uA range to 0-10 mA.

Ad a current meter in series and you can measure the full deflection current.

Its a galvanometer (wiki ) a coil that rotates in a magnetic field.
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Offline somlioyTopic starter

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Re: How to run the analog pointer indicator
« Reply #2 on: May 23, 2013, 01:32:34 pm »
So thats what they're called. Easier to get some results ongoogle then.  :-+
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