Accepted file structure

Use ASCII encoding for predictable results.

To be parsed a row must contain:

• A number with dot or comma as a decimal separator. The number may be in a scientific representation e.g. 3.4563e-2. Leading + and - signs are permitted. This first number is the time stamp measured in milliseconds.
• A tabulation to separate the first from the second number (ASCII decimal code 9).
• A number with dot or comma as a decimal separator. The number may be in a scientific representation e.g. 3.4563e-2. Leading + and - signs are permitted. This second number is the X component of the acceleration measured in g's (1g = 9.80m/s2).
• A tabulation to separate the second from the third number (ASCII decimal code 9).
• And then two more numbers for the Y and Z components of the acceleration following the previous rules.

Concurrent validity

One way to validate this calculator is to put it against a well known authority calculation.

An example file can be downloaded here: Frontal Barrier Impact Test - Driver Seat. This file is taken from NHTSA, as only the timestamps are converted to ms. The test number is 14990.

The full crash test report from 14990 can be downloaded here: Frontal Barrier Impact Test Report