Electrothermal restoration is a technology that uses high-frequency voltage to  generate electromagnetic wave heating to separate some volatile heavy metals from the soil, so as to achieve the purpose of restoration. The waveform required for this experiment is not a normal AC waveform, which is difficult to achieve with ordinary AC power. ITECH IT7600 high-performance AC power supply has built-in arbitrary waveform generator, which can simulate harmonics and various arbitrary waveform outputs, and has AC measurement and analysis functions. With the free IT9000-PV7600 software, you can easily import and export waveform data.