Attack angle measuring device and attack angle measuring method

摘要

The present invention provides an attack angle measurement device capable of continuously measuring an attack angle with a simple configuration. SOLUTION: An attack angle measurement device is provided by a wheelset 100 having first and second wheels 110 respectively provided at both ends of an axle 120, and a load input point from a first rail R to the first wheel. First phase detection means 240 for detecting the phase of the second phase, second phase detection means 240 for detecting the phase of the load input point from the second rail R to the second wheel, and the first and second phase detection means An attack angle calculation means 260 for calculating an attack angle formed by the wheelset with respect to the trajectory based on the phase deviation Δφ detected by the phase detection means is provided. [Selected figure] Figure 7