Hi there,
I want to measure current with my oscilloscope. So far, so easy. Just bodge in a little and precise resistor, like 1 Ω or so and measure the voltage across it.
But I don't want to bodge that, I want a nice sollution. Now here is my idea:
I wanted to make a little resistor box e.g. like this: http://www.instructables.com/id/Make-a-Variable-Resister-with-1-Million-Settings/
Only with 4mm banana plugs, so I can use it in a convienient way with my lab power supply.
Additionally to the banana plugs, I wanted to add a bnc connector, so I can hook it up to my oscilloscope too, in order to measure current with it.
Here is my little dilemma: I don't have one of those neat probe to bnc adapters and it's a pain in the butt to find one in germany without having to buy a whole expensive probe.
So, what if I just plug the resistor box into my oscilloscope without a probe in between but directly via a bnc cable?
I am fairly new to the field of oscilloscopes but as far I understand, the compensation circuit in the probe is there to prevent over/undershoot while maintaining a good rise/fall time but I don't know how bad of an idea is it to work without a probe/compensation circuit.
Is that a no-go, with potential to blow my oscilloscope or will it just mean I have less precise readings?
Thanks in advance to anyone taking the time to read this!
I want to measure current with my oscilloscope. So far, so easy. Just bodge in a little and precise resistor, like 1 Ω or so and measure the voltage across it.
But I don't want to bodge that, I want a nice sollution. Now here is my idea:
I wanted to make a little resistor box e.g. like this: http://www.instructables.com/id/Make-a-Variable-Resister-with-1-Million-Settings/
Only with 4mm banana plugs, so I can use it in a convienient way with my lab power supply.
Additionally to the banana plugs, I wanted to add a bnc connector, so I can hook it up to my oscilloscope too, in order to measure current with it.
Here is my little dilemma: I don't have one of those neat probe to bnc adapters and it's a pain in the butt to find one in germany without having to buy a whole expensive probe.
So, what if I just plug the resistor box into my oscilloscope without a probe in between but directly via a bnc cable?
I am fairly new to the field of oscilloscopes but as far I understand, the compensation circuit in the probe is there to prevent over/undershoot while maintaining a good rise/fall time but I don't know how bad of an idea is it to work without a probe/compensation circuit.
Is that a no-go, with potential to blow my oscilloscope or will it just mean I have less precise readings?
Thanks in advance to anyone taking the time to read this!