[time-nuts] Temperature sensors and bridge amps

[Poul-Henning Kamp]

In message <20101112110627.488cbc8f at vz127.worldserver.net>, "Florian E. Teply" 
writes:

>In a bridge circuit, you don't measure resistance directly, but use the
>voltage that appears across the bridge. So for a 100 ohms element,
>you'd usually have ten times the current flowing in that branch
>compared to a 1kohm element.

This was one of the things that I wondered about:  How large currents
are used ?

Can't be too much because that would lead to self-heating...

Poul-Henning

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