ACCELEROMETER FOR VIBRATION ANALYSIS

An accelerometer suitable for vehicle ride analysis is described. The instrument is of the linear type (measuring acceleration in a straight line), incorporating a seismic mass that is free to move along one axis. The bulk of the seismic mass is incorporated in the core assembly of a differential transformer which produces an electrical output proportional to the applied acceleration. The damping of the system is electro-magnetic, achieved by a shorted turn of copper suspended in a strong magnetic field, and is independent of ambient temperature variations.