Transcription of Vibration Testing (br0227)
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Vibration Testing (br0227)
~ Bruel & Kj r Introduction See paQe This booklet gives an introduction to the methods used Introduction 1. in Vibration Testing and a description GI tne Vibration Why Vibration lesting? 2. exciters and control equipment used in environmental How does an exclter work? 3. 1estlng and in determlna,tlmll of dynamic proper\Jies of The power amplifier 4. structures. The exciter control 4. Basic exciter Instrumentation 5. ,S ine excitation 5. Random excitation 6. Environmental teating 7. Mounting of the teat object 7.
A dynam-ic range of at least 80 dB and compressor rates up to 1000 dB/sec are normally found. Sine signals are described by their frequency and ampli-tude. In Vibration testing the amplitude is normally In terms of peak values (displacement 8S peak-peak) with
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