Transcription of 1 FUNDAMENTALS OF ACOUSTICS - WHO
{{id}} {{{paragraph}}}
Example: dental hygienist
1 FUNDAMENTALS OF ACOUSTICS - WHO
1 FUNDAMENTALS OF ACOUSTICSP rofessor Colin H HansenDepartment of Mechanical EngineeringUniversity of AdelaideSouth Australia aspects of ACOUSTICS are presented, as they relate to the understanding andapplication of a methodology for the recognition, evaluation and prevention or control of noiseas an occupational hazard. Further information can be found in the specialised literature listedat the end of the PHYSICS OF SOUNDTo provide the necessary background for the understanding of the topics covered in thisdocument, basic definitions and other aspects related to the physics of sound and noise arepresented. Most definitions have been internationally standardised and are listed in standardspublications such as IEC 60050-801(1994). Noise can be defined as "disagreeable or undesired sound" or other disturbance. From theacoustics point of view, sound and noise constitute the same phenomenon of atmosphericpressure fluctuations about the mean atmospheric pressure; the differentiation is greatlysubjective.
26 Fundamentals of acoustics p p p t t t f f f 1 f1 f2 f3 Frequency bands (a) (c) (e) (b) (d) (f) p2 p2 p2 Figure 1.4. Spectral analysis illustrated. (a) Disturbance p …
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: