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Operation manual for Acceleration Measurement Web App with rotation correction^† without installation
† Rotation correction: conversion from acceleration in a device-fixed coordinate system to acceleration in a stationary coordinate system (detail)

■ Overview

This application is an acceleration measurement web application that simultaneously acquires the acceleration generated in the device and the Euler angles of the device, and converts the acceleration in a coordinate system fixed to the device to that in a stationary coordinate system. The ability to obtain acceleration in a stationary coordinate system facilitates measurement and analysis of 2-D and 3-D motion. This is a web application that runs in a web browser and does not require installation.

■ System requirements

• Smart phone / Tablet
  

  ◆ Android : Available for Android devices with accelerometer and azimuth sensor (newer Android version is better).

  Browsers that have been tested: Chrome, Edge, Firefox

  ◆ iPhone / iPad : Versions earlier than iOS 12.2 or versions later than iOS 13

  Browsers that have been tested: Safari
  Unable to access acceleration sensor from browsers in iOS 12.2-13.

  * In addition to the above, it will work on any terminal equipped with a browser that has JavaScript enabled and can access the acceleration sensor and the azimuth sensor.


• Laptop with an acceleration sensor
  It can be used on a Laptop such as a 2-in-1 equipped with acceleration and azimuth sensors, and a browser with Javascript enabled.
  As for OS, Windows, MacOS, or Linux are supported.

Library used in app

KATEX: JavaScript open source library for displaying mathematical formulas on the web (MIT Licence)

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