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AssigneeAVL DiTest GmbH
InventorsChristian Huber, Roman Riegler
Estimating the term…
To determine in a simple and unequivocal manner whether measurement contacts at which a voltage is to be measured have been properly contacted in a measurement system, in the measurement system, after a discharge switch connecting a charging circuit to a voltage measurement device is closed, the charging circuit is discharged via an internal resistance of the voltage measurement device. When the discharge switch is closed, after a measurement switch connecting the voltage measurement device to the measurement contacts is closed, it is established whether the electrical system is contacted with the measurement system by analyzing the voltage curve at the voltage measurement device after closure of the measurement switch. Advantageously, after the discharge switch is closed, the charging circuit is discharged via a discharge resistor connected in series or in parallel with the voltage measurement device and via the internal resistance.
A method for determining an electrical contacting of an electrical system with a measurement system, the measurement system being connectable to measurement points of the electrical system by means of measurement contacts, wherein, in the measurement system, after a discharge switch connecting a charging circuit to a voltage measurement device is closed, the charging circuit is discharged via an internal resistance of the voltage measurement device, and in that, when the discharge switch is closed, after a measurement switch connecting the voltage measurement device to the measurement contacts is closed, the contacting of the electrical system is with the measurement system is determined by analyzing the voltage curve at the voltage measurement device starting from closure of the measurement switch.
A device for determining an electrical contacting of an electrical system with a measurement system, the measurement system being connectable to measurement points of the electrical system by means of measurement contacts, wherein a charging circuit, a discharge switch and a voltage measurement device having an internal resistance are provided in the measurement system, the discharge switch, when in the closed state, connecting the charging circuit to the voltage measurement device, discharging said circuit via the internal resistance and the voltage measurement device thus recording a characteristic voltage curve of the measurement system, and in that a measurement switch and an analysis unit are present, the measurement switch connecting the voltage measurement device to the measurement contacts, and the analysis unit serves to determine the electrical contacting of the electrical system with the measurement system) from a voltage curve at the voltage measurement device after closure of the measurement switch.
Dependencies are inferred from the claim text.