为了减少车轮踏面擦伤的发生,迄今已进行了种种研究。对于特快电车,虽然安装了初速度探测装置、空重车调节装置、车轮踏面清扫装置,但仍不能完全防止车轮踏面擦伤的发生。防止车轮擦伤的措施至今尚不完善。由于车轮踏面擦伤会引起振动和噪声,恶化乘车舒适性,而且还会造成车轴轴承破损而发生车辆事故,所以,早期发现并进行适当的处理是非常必要的。作为车轮踏面擦伤检测装置现已有新干线车辆用车轮擦伤探测装置,但因其测定精 In order to reduce the occurrence of wheel tread scratches, various studies have been conducted so far. For the express train, although the initial speed detection device, empty truck adjustment device, the wheel tread cleaning device, but still can not completely prevent the occurrence of wheel tread scratches. Measures to prevent wheel scratches are still not perfect. As the wheel tread surface abrasion can cause vibration and noise, deteriorating ride comfort, but also cause axle bearing damage and vehicle accidents, early detection and appropriate treatment is necessary. As a wheel tread surface flaw detection device, a wheel abrasion detection device for a Shinkansen vehicle is available. However,