## integration (rogowski) of a waveworm

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driesdendas
User
Posts: 2
Joined: Tue Oct 20, 2009 5:41 pm
Location: Belgium

### integration (rogowski) of a waveworm

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
PICO STAFF
Posts: 279
Joined: Tue Oct 21, 2014 3:07 pm

### Re: integration (rogowski) of a waveworm

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