Mr. Hendricks, Dr. Paul Zavracky at Northeastern U. has fabricated a set of high performance accelerometers for NASA JPL. I beleive the performance regime was similar. You might contact him directly. James M. Ortolf, Sr. EE www.sanders.com Sanders,Inc., A Lockheed Martin Co. m/s PTP2-A001 P.O. Box 868 phone: (603) 885-4468 Nashua, NH 03061-0868 fax #: (603) 885-0631 The right angle from which to approach any problem, is the try-angle.