General purpose vibration test system for electronic devices

Electronic devices that will be installed for automotive applications would possibly located in environments where vibrations environment might occur. It is therefore necessary to provide a vibration or shock test for a functionally test under severe vibration environments. A general purpose vibration test system has been developed to provide a testing platform for such testing requirements. A special shaker table has been designed and manufactured to be a platform base where an electronic device will be placed and excited by a vibration exciter. This shaker stable can be used in a frequency range of service up to 2500 Hz and will behave as a rigid body vibration. The vibration excitations from the shaker will be directly transmitted to the electronic device in a rigid body mode. The calculated first natural frequency of the shaker table is 2580 Hz. The resonance will not occur in the range of frequency of service (0-2500Hz). The vibration system can provide various tests: random test, shock test, road simulation test as well as sine chirp sweep function test, where constant velocity or acceleration can be done in frequency cyclic sweep from low to high frequency. The maximum acceleration is limited to 93g and the maximum dimension of the electronic device that can be placed in the shaker table is 15 cm square.