171447 ⎘
Measuring arrangements involving comparison with a reference value, e.g. bridge; AC or DC measuring bridges with indication of measured value by calibrated null indicator, e.g. percent bridge, tolerance bridge
Monitoring device and method of monitoring an impedance of a protective conductor, and charging control unit
#2Null detector devices and systems employing same
#3Method and circuit arrangement for the self-testing of a reference voltage in electronic components