We can measure this signal with a multimeter, taking care to keep it isolated. But can anyone thing of a trick to log data from it for a long period of time? The must be some trick, perhaps with a current mirror and an opto-isolator, to get the voltage down to low voltage levels.
High Voltage Isolation
High Voltage Isolation
We are trying to measure a 2V signal across a current resistor at -17kV from ground.
There is no way we can put the resistor on the ground side.
We can measure this signal with a multimeter, taking care to keep it isolated. But can anyone thing of a trick to log data from it for a long period of time? The must be some trick, perhaps with a current mirror and an opto-isolator, to get the voltage down to low voltage levels.
We can measure this signal with a multimeter, taking care to keep it isolated. But can anyone thing of a trick to log data from it for a long period of time? The must be some trick, perhaps with a current mirror and an opto-isolator, to get the voltage down to low voltage levels.
Re: High Voltage Isolation
Working on high with home made circuitry is very dangerous.
It is better to use a special crafted instrument for this
https://nl.rs-online.com/web/p/multimet ... s/4428294/
You can attach this to the picoscope and measure over long periods of time.
Benno
It is better to use a special crafted instrument for this
https://nl.rs-online.com/web/p/multimet ... s/4428294/
You can attach this to the picoscope and measure over long periods of time.
Benno
Re: High Voltage Isolation
Thanks for replying.bennog wrote:Working on high with home made circuitry is very dangerous.
It is better to use a special crafted instrument for this
https://nl.rs-online.com/web/p/multimet ... s/4428294/
You can attach this to the picoscope and measure over long periods of time.
I already have that high voltage probe.
I need to monitor 8 channels. I'd like something like the PicoLog 1000 that I could power by battery and read wirelessly in a PC or phone app.
Re: High Voltage Isolation
The PicoLog 1000, as with all our devices, will require a permanent connection to a PC to provide power and also collect the data.
Martyn
Technical Support Manager
Technical Support Manager