Development of an Eddy Current Non Contact Displacement Gage for Monitoring Anthropomorphic Dummy Chest Deflections

摘要

A noncontacting 'Eddy Current' displacement gage has been developed for monitoring part 572 anthropomorphic dummy chest deflections. The gage is configured so as to be a bolt-on item to the part 572 dummy requiring no modifications to it. The gage is designed to accommodate a full 3 inches of chest deflection and includes oscillator and demodulator electronics contained within the gage head. Linearization of the gage's output signal as a function of dummy chest deflection is achieved by a lookup table applied to the digitized signal.