The ultrasonic technique used for the examination is based on modern ultrasonic detectors. Using a rail-inspection train, railroads are continuously checked for traffic-induced defects because high train speeds and heavy axle loads are the critical factors affecting the service life of the rails Up to the present time, only ultrasonic inspection was used. In addition, eddy-current inspection could successfully and efficiently be used to detect and evaluate certain surface cracks—so-called head checks. There have already been reports about laboratory tests, which proved the general suitability of this test method [12,13]. The next step—described here—consisted of practical trials under real-life conditions. A test system that is able to fulfil the strict requirements (test speeds of up to 100 km/h, complex probe guidance, suppression of electrical and mechanical interference, recording of data, filtering and evaluation of data) was developed. As part of the rail-inspection train and as a manual system, this inspection system was successfully tested on railroads under real conditions.
ultrasonic เทคนิคที่ใช้สำหรับการตรวจสอบจะขึ้นอยู่กับเครื่องตรวจจับเครื่องที่ทันสมัย การใช้รถไฟ รถไฟ รถไฟจะตรวจสอบอย่างต่อเนื่อง เพื่อสร้างรถไฟความเร็วสูง จึง c-induced บกพร่องเพราะโหลดเพลาหนักวิเคราะห์ปัจจัยที่มีผลต่ออายุการใช้งานของรางถึงเวลาปัจจุบัน แต่ด้วยการใช้ นอกจากนี้ eddy-current inspection could successfully and efficiently be used to detect and evaluate certain surface cracks—so-called head checks. There have already been reports about laboratory tests, which proved the general suitability of this test method [12,13]. The next step—described here—consisted of practical trials under real-life conditions. A test system that is able to fulfil the strict requirements (test speeds of up to 100 km/h, complex probe guidance, suppression of electrical and mechanical interference, recording of data, filtering and evaluation of data) was developed. As part of the rail-inspection train and as a manual system, this inspection system was successfully tested on railroads under real conditions.
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