TY - RPRT TI - A next generation electrodynamic shaker for the primary calibration of accelerometers : the NIST and AFMETCAL super shaker project AU - Payne, Bev AU - Harper, Kari K PY - 2010 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 7724 DO - 10.6028/NIST.IR.7724 ER -