Thanks for the workaround Hitesh,
I’ll experiment with creating custom probes using a windows laptop and copy the setup file.
Our students are investigateing the current voltage relationship of inductors and capacitors with a range of frequencies.
I'm using a 1K resistor as a shunt to measure current in mA.
The resistor and reactive component are in series and fed by a signal generator (with a floating output not referenced to earth).
The Picoscope input earth connections go the connection between the resistor and reactive component and the inputs to channels A & B go to each of the outputs from the signal generator.
The lecturer says it doesn’t matter so much that the current channel is inverted because the students are only investigating the amplitude relationship at the moment.
It might be worth Pico technology marketing a suitable amplifier for education users. It would be handy if such a thing had a BNC input and maybe 4mm output connectors so that colleges and schools could use Picoscope as a frequency generator with low output impedance. Not sure how well this would sell though?
Our lecturing staff will get excited if you get the maths channels working with Linux!
Using a windows PC we have been playing around with the maths channels and a pendulum hanging from a potentiometer.
The potentiometer output gives angular displacement. A differentiation function gives angular velocity and double differentiating the input gives angular acceleration.
It appears to be necessary to filter the signal pretty heavily each time before differentiating but since the students only investigate the pendulum over a small range of frequencies this does not present a problem.