NOISE AND
VIBRATION
,What is Noise and
vibration
Noise-noise is any
sound which is
independent of
Vibration- Is an
loudness,
mechanical
produces an
oscillation of an
undesired
object about in
physiological and
an equilibrium
psychological
impact in an
individual.
, Noise
Noise is an unwanted sound, which is most common physical hazards in the
workplaces, causing Noise Induced Health Problems (NIHL)
Measurement of noise is -Decibel (dB) used to measure the intensity of sound.
Measuring instruments ;
1.Nosie dosimeter; for measuring mainly of industrial noise personal noise
exposure level
2.sound level -area noise level
3.octave-band frequency analyzer
Noise induced hearing loss is the second most common cause of sensorineural
hearing loss in adults, constituting 60% of hearing loss disabilities.
Loud noise is particularly harmful to the inner ear i.e.. cochlea, which damages
hair cells and membrane of cochlea
Listening to loud noise for long time cause over work of hair cell which cause
hair cell to die.
VIBRATION
,What is Noise and
vibration
Noise-noise is any
sound which is
independent of
Vibration- Is an
loudness,
mechanical
produces an
oscillation of an
undesired
object about in
physiological and
an equilibrium
psychological
impact in an
individual.
, Noise
Noise is an unwanted sound, which is most common physical hazards in the
workplaces, causing Noise Induced Health Problems (NIHL)
Measurement of noise is -Decibel (dB) used to measure the intensity of sound.
Measuring instruments ;
1.Nosie dosimeter; for measuring mainly of industrial noise personal noise
exposure level
2.sound level -area noise level
3.octave-band frequency analyzer
Noise induced hearing loss is the second most common cause of sensorineural
hearing loss in adults, constituting 60% of hearing loss disabilities.
Loud noise is particularly harmful to the inner ear i.e.. cochlea, which damages
hair cells and membrane of cochlea
Listening to loud noise for long time cause over work of hair cell which cause
hair cell to die.
