New Track Measurement Method using Angular Velocity and Lightweight Track Geometry Measuring Trolley

Tomoya ARAI; Yasukuni NAGANUMA

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New Track Measurement Method using Angular Velocity and Lightweight Track Geometry Measuring Trolley

机译：New Track Measurement Method using Angular Velocity and Lightweight Track Geometry Measuring Trolley

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摘要

For measurement of track geometry, the differential method or the inertial measuring, method is used. In 2016, we developed a track measurement method that does not belong to either of them and named it as the "differential difference method." This new measurement method uses the angular velocity measured by a gyroscope and does not require complicated strapdown calculation for determining the attitude angle. We assembled a compact track measuring trolley and check the accuracy of measurement to evaluate the effectiveness of the differential difference method. As a result, the method showed significantly superior repeatability compared to the conventional device. In addition, it can be zero-adjusted within several seconds, does not require any movable part for measurement of longitudinal level and alignment, and only weighs 13.4kg. Therefore the differential difference method is considered to be a superior track measurement method that contributes to cost reduction, weight saving, improvement of usability and maintainability, and so on.

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《Japanese railway engineering》 |2020年第209期|12-15|共4页
作者
Tomoya ARAI; Yasukuni NAGANUMA;
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作者单位

Technology Research and Development Department, General Technology Division, Central Japan Railway Company, DEICY Corporation;

Technology Research and Development Department, General Technology Division, Central Japan Railway Company;

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正文语种英语
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New Track Measurement Method using Angular Velocity and Lightweight Track Geometry Measuring Trolley

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