The invention discloses an excitation delay detection method and device for ultrasonic guided waves and a steel rail detection system.The excitation delay detection method for ultrasonic guided wave transmitting probes comprises the steps that a first excitation electric signal is provided for a first ultrasonic guided wave transmitting probe at the first moment, the first ultrasonic guided wave emission probe emits a first ultrasonic guided wave signal under the action of the first excitation electric signal; controlling a second ultrasonic guided-wave transmitting probe to receive the first ultrasonic guided-wave signal, and acquiring a second moment when the second ultrasonic guided-wave transmitting probe converts the first ultrasonic guided-wave signal into a first electric signal; acquiring the total conversion time length of the electric signal-guided wave signal conversion time of the first ultrasonic guided wave transmitting probe and the guided wave signal-electric signal conversion time of the second ultrasonic guided wave transmitting probe; according to the first moment, the second moment and the total conversion duration, the excitation delay duration of the second ultrasonic guided wave transmitting probe is determined. According to the technical scheme, the determination reliability and accuracy of the excitation delay duration can be improved.
本发明公开了一种超声导波的激励延时检测方法、装置和钢轨检测系统,该超声导波发射探头的激励延时检测方法包括:在第一时刻向第一超声导波发射探头提供第一激励电信号,以使第一超声导波发射探头在第一激励电信号的作用下出射第一超声导波信号;控制第二超声导波发射探头接收第一超声导波信号,并获取第二超声导波发射探头将第一超声导波信号转换为第一电信号的第二时刻;获取第一超声导波发射探头的电信号‑导波信号转换时间,与第二超声导波发射探头的导波信号‑电信号转换时间的总转换时长;根据第一时刻、第二时刻和总转换时长,确定第二超声导波发射探头的激励延时时长。本发明的技术方案,可以提高激励延时时长的确定可靠性和准确性。
Excitation delay detection method and device of ultrasonic guided wave and steel rail detection system
一种超声导波的激励延时检测方法、装置和钢轨检测系统
09.05.2025
Patent
Elektronische Ressource
Chinesisch
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