Hi all,
I'm curious what ways you can measure I-V. While working in a physics lab, I used one setup with a potentiometer connected to a constant speed motor, working as a voltage divider that varied linearly with time. The current was picked up by the vertical axis of a mechanical plotter, which moved across the plot at a constant speed in sync with the motor. That was a pretty old setup, and I doubt people use something like that anymore--at least, I *hope* they don't. Anyone know what the other methods are? I'm more interested in the way they control voltage than how they display the signal. Thanks.
I'm curious what ways you can measure I-V. While working in a physics lab, I used one setup with a potentiometer connected to a constant speed motor, working as a voltage divider that varied linearly with time. The current was picked up by the vertical axis of a mechanical plotter, which moved across the plot at a constant speed in sync with the motor. That was a pretty old setup, and I doubt people use something like that anymore--at least, I *hope* they don't. Anyone know what the other methods are? I'm more interested in the way they control voltage than how they display the signal. Thanks.