The 250 kN primary shock force calibration device at PTB

A new facility for primary shock force calibrations up to a force amplitude of 250 kN is presented. Shock forces are generated by the impact of two airborne cylindrical mass bodies. Two laser-Doppler interferometers simultaneously measure the bodies’ dynamic motions on their common axis of motion. Traceability of force is realised by the determination of mass and acceleration. This paper is an extended version of the original contribution to the IMEKO 2010 conference in Pattaya, Thailand.

► New facility for primary shock force calibrations up to 250 kN.
► Shock forces generated by the collision of two airborne mass bodies.
► Inertial forces measured on axis of motion by means of laser-Doppler interferometers.
► Traceability of dynamic force realised by determination of mass and acceleration.