Already in the 1960ies dissipation factor measurements were applied to identify the quality of dielectric measurements. The recovery voltage method (RVM) came onto the market in the early 1990ies. A decade later, Polarisation and Depolarisation Current measurement (PDC) and Frequency Domain Spectroscopy (FDS), were brought into the market. In 2007, OMICRON DIRANA entered the market. DIRANA combines the advantages of both PDC and FDS and offers an advanced interpretation algorithm.
Get more information: https://www.omicronenergy.com/en/products/dirana/
