Implementation of a primary shock calibration system in Lavib : Inmetro

4 p.: il.This paper presents the current status of the development of a primary shock calibration system in the vibration laboratory of Inmetro - Lavib. The shock facility was designed and now it is being manufactured. The working principle used is the rigid body shock between a hammer and an anvil, according with the ISO standard 16063-13. The measurement system is ready and it consists of a mach-Zender interferometer and an analog-to-digital signal acquisition module. The software developed wmploys an undersampling technique for down-conversion of the high frequency heterodyne signals. Some results using sinusoidal inputs are presented to demonstrate the undersampling method used