Patent ID: 11860301
Assignee: DSPACE GMBH
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A testing device for testing a distance sensor that operates using electromagnetic waves, the testing device comprising:
a receiving element; and
a radiating element;
a delay unit;
a test signal unit; and
an analysis unit;
wherein, in a simulation mode, the delay unit is configured to delay a receive signal (SRX) received via the receiving element or a derived receive signal (S′RX) based on a settable time delay (tdelay, set) to form a delayed signal (Sdelay), and the radiating element is configured to radiate the delayed signal (Sdelay) or a derived delayed signal (S′delay); and
wherein in a test mode:
the test signal unit is configured to generate a test signal (Stest);
the radiating element is configured to radiate the test signal (Stest) or a derived test signal (S′test); and
the analysis unit is configured to scan a quiet zone to measure planeness of incoming waves in the quiet zone, wherein scanning the quiet zone comprises determining phase angles (Phi) and/or amplitudes (A) of a plurality of receive signals (SRX) or a plurality of derived receive signals (S′RX).