This standard requires that, when acceleration data are acquired, the acceleration data reference the patron coordinate system where the Z axis is nominally aligned with the spine. As the spine is curved and relatively flexible and restraint surfaces may have different contours, an estimate of the overall direction of the spine can be accomplished in a number of different ways. This appendix is intended to present one possible approach to the measurement of the seatback angle but is in no way to be interpreted as the only method to represent the alignment of the patron coordinate system.
Keywordsaccelerometer; data recorder; SARC; standardized amusement ride characterization; test data record; test documentation; transducer; transducer location;
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