Digital Metrology

The Digital Test Certificate (DTC) is a variant of the Digital Calibration Certificate (DCC) and was designed as part of the development of the ELVIS (Electric Vehicle Charger Inspection System) mobile testing system. As no calibrations are carried out when testing charging points installed in the field, the standardised DCC serves as the structural and semantic basis for deriving the Digital Test Certificate. The aim of this modification is to ensure uniform, digital and machine-readable documentation of test results in the field. In addition to basic device information – such as address, manufacturer, serial number and test date – the DTC also records metadata on individual test points and the associated measurement uncertainties in a structured manner. The data collected during the test is first transferred to a defined Excel template and then converted, using a conversion programme, into a standardised XML structure adapted to the DCC semantics.