integration (rogowski) of a waveworm

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driesdendas
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Location: Belgium

integration (rogowski) of a waveworm

Post by driesdendas » Tue Oct 27, 2015 10:16 am

Hi,

For one of my projects i've to measure a signal from a rogowski-coil.
But the output signal of the coil is not integrated.
I've found the integration-function at the math-channels but i can't obtain the result i expect

The formula should be: i(t) = (c) * integral(A(t) * dt) with c = contant (this case 36153),
i(t) = current (Amp),
A = signalvalue (mV)
The closed i can do is: c *integral((A(T))*derivative(T))
But without a result :-(
Does anyone knows a solution?

Thanks!

Dries

AndrewA
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Re: integration (rogowski) of a waveworm

Post by AndrewA » Thu Oct 29, 2015 5:12 pm

The voltage produced by a Rogowski coil is-
V = c x (dI/dt)
where c = Is the constant of the coils properties
See - https://en.wikipedia.org/wiki/Rogowski_coil
So current I in the cable is-
I = integral(V/c)
Regards Andrew
Technical Specialist

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