Design a Rogowsky coil. With the right design you can go from about 200Hz to 5MHz. Needs a wideband
active integrator since a Rogowsky output is proportional to dI/di.
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-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of stefan_trethan
Sent: 09 December 2018 19:52
To: [email protected]
Subject: Re: [TekScopes] TIP: Current Probes ...
To answer my own question:
But only 47kHz, I'd like something like that with a couple hundred kHz....
ST
On Sun, Dec 9, 2018 at 8:38 PM stefan_trethan <stefan_trethan@...> wrote:
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Are there any cheap approximations of the Iprober 520 fluxgate sensor
current probe?
Maybe some sort of IC?
ST
On Sun, Dec 9, 2018 at 8:19 PM David Slipper <softfoot@...> wrote:
I did look at making one with a Hall sensor - the electronics isn't
a problem but the difficulty arises (for me at least) in cutting the
slot in a ferrite ring to put the sensor in or even splitting the
core to make a clamp. I guess it's easier if you have access to the right tools.
Any ways, this works well for me :-)
On 09/12/2018 18:52, stefan_trethan wrote:
If you only need low frequency the LEM brand hall effect sensors,
I believe Allegro also makes chip based ones, can be an option.
Also remember you can put 10 turns through if you need more
sensitivity (insertion impedance permitting).
