PUND stands for Positive Up Negative Down signal commonly used for subtracting the circuit leakage from the actual response. I am using an Arduino.
Either you should you have the costly PE hysteresis loop measurement set up sold by Radiant technologies, and has the PUND type signal application.
Alternately you can try using an arbitrary waveform generator, and set the design for the required waveform, and levels. However you will not be able to apply very high voltages for measurements on ceramics, but should be able to apply on thin films, and record the switching waveforms through a computerised data acquisition system from the oscilloscope. I have not tried this PUND measurement like I have described above.
However, measured normal hysteresis loops using a oscilloscope and a waveform generator, and also through computerised data acquisition. of course you will need the simple sawyer-Tower circuit.
But how do I manage to get the Double Up and Double down signal manually?@K. Sreenivas
A positive pulse means going up and coming down (to zero),then have a small delay then go up again and come down, again a delay then go negative from zero, after a small delay then again go down negative from zero, and terminate at zero. this will be a double up and double down pulse. PUND waveforms are normally given in papers which have been published. even discussed on research gate by Prof. Triscone group from the Univ. of Geneva.
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