LARGE SIGNAL INDUCTANCE MEASUREMENT DEVICE AND METHOD FOR CARRYING OUT A MEASUREMENT OPERATION TO MEASURE AN INDUCTANCE

• Main Authors: GEHRING, Johannes, SCHWANNINGER, Raffael, WUNDER, Bernd
• Format: Patent
• Language: English
• Published: 14.03.2024
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention relates to a large signal inductance measurement device (1) and to a method for carrying out a measurement operation to measure an inductance (QTI, LTI) on an electrical energy supply line arrangement (EL, ZL) operated with a DC voltage, the large signal inductance measurement device (1) comprising: a disconnector (2) for electrically disconnecting the first conductor (EL) of the energy supply line arrangement (1); a first series circuit (3, 4) comprising a first capacitive arrangement (3) and a first diode arrangement (4); a first measurement device (5) for measuring a first voltage change following the disconnection of the first conductor (EL); a second series circuit (6, 7) comprising a second capacitive arrangement (6) and a second diode arrangement (7); a second measurement device (8) for measuring a second voltage change following the disconnection of the first conductor (EL); a third measurement device (9) for measuring a third current over the first conductor (EL) prior to the disconnection of the first conductor; and an evaluation device (10) for evaluating the measured first voltage change, the measured second voltage change, and the measured third current.