| Products > Test Equipment |
| Micsig has Optic fiber AND HF current Probes?! |
| << < (3/9) > >> |
| JPortici:
Current probe power supply 12V... External adapter or battery powered? |
| Martin72:
Would be with adapter I guess. The probe is IMHO another from hioki*, price for it won´t be cheap. *) All "good" current probes from Siglent, Lecroy, R&S, Rigol are the same building by hioki, only different in the connections. |
| nomead:
Chinese website claims Micsigs UPI interface provides the power. Maybe UPI provides also 12V? PA12 PSU is offered for non-Micsig scopes. |
| Hydron:
The bit about auto/manual nulling and gain adjustment makes me think that the optical probe might be based on an open loop analogue optical modulation, i.e. turn input voltage into a level-shifted current to drive a laser/LED, receive with a linear analogue-output detector. The gain and null adjustments mentioned would be needed to periodically tweak gain/offset to adjust for temperature/time/fibre movement, and reverse the level-shift needed for the optical transmitter. I've actually had a bit of a play doing this in a DIY manner (didn't get much beyond looking at the frequency response of a HFBR-2416/1414 pair), and I think there are other products out there doing it in a similar manner, but with a fair bit less bandwidth. |
| PartialDischarge:
This probe is probably the same as a Lecroy DL03-ISO but without the Power over Fiber and has a rechargeable battery instead. It most probably, again, works with an optical modulator, Mach Zenhder, Kerr effect, Pockels, or similar. Someone must be making this for them. One problem is that for auto adjustment the input signal needs to be removed. |
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