Diodes can be used to clamp AC waveforms... a technique which essentially shifts the entire waveform up or down. You will need the waveform generators and oscilloscope of ExpEYES, as well as a voltage output(PV1). and a diode.
The advanced logger allows users to sweep one output parameter(WG,SQR2,PV1...) in a specified range, and measure a parameter for each output value. Inputs can be simple voltages, I2C sensors, derived parameters from the oscilloscope etc.