公开(公告)号：US12025753B2

公开(公告)日：2024-07-02

申请号：US17148066

申请日：2021-01-13

Applicant: dSPACE digital signal processing and control engineering GmbH

Inventor： Thomas Michalsky ,  Haitz Aguirre Urizar

IPC: G01S7/52 ,  G01S15/08

CPC classification number: G01S7/52004 ,  G01S15/08 ,  G01S2007/52007

Abstract: A test device for testing a distance sensor operating with ultrasonic waves, wherein the distance sensor to be tested comprises at least a sensor radiating element for emitting a transmission signal and a sensor receiving element for receiving a reflected signal. For effective and accurate testing and stimulation of the distance sensor, the test device has a test receiving element for receiving ultrasonic waves emitted from the distance sensor to be tested, and at least one test radiating element for radiating test ultrasonic waves, and a signal processing unit, wherein ultrasonic waves received by the test receiving element are transmitted as a received signal to the signal processing unit and the signal processing unit, as a function of the received signal and simulation distance information relating to a distance to be simulated, and determines an excitation signal for the test radiating element.