Design and Verification of An Adjustable Universal Board Level Vibration Fixture
This article designs an adjustable universal board level vibration fixture,which can fix not only the edge holes of PCB samples,but also any position inside the board.The whole fixation method is in a non-destructive disassembly manner.The state of the samples during vibration test can be more consistent with the actual installation state,improving the effectiveness of vibration test.At the same time,verification experiments were conducted on the fixture,and the results showed that this universal fixture not only has good vibration response itself,but also can effectively fix the sample board even that there is not reserved installation holes.The fixture can make the fixed position vibration response close to the set value of the vibration equipment.This indicates that the universal fixture can effectively avoid over testing or under testing while being compatible with samples of different sizes,and improve the accuracy of vibration testing.
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