THIS 22.1

3ms Clip

3ms Clip

The 3ms clip value is the maximum value of acceleration that is exceeded for a period of not less than 3 ms. This is not an easily comprehended definition: the following may be of more use:
(1) At each time point T, take the interval (T to T+3ms);
(2)
In this interval find the lowest acceleration value;
(3)
The "3ms Clip" value is the interval (T to T+3ms) which has the largest "lowest" value as calculated in (2) above.
So, perhaps, a better definition might be: "the 3ms interval with the highest lowest acceleration value".