噪音危害預防 - nfuee.nfu.edu.tw

1 2005/10/15 1. 1.. / . (second/per cycle) .. ( ) . / . (Hz).. 2005/10/15 2.. ( . ) .. 1.. 20 20000Hz 2.. 20Hz 3.. 20000Hz . 2005/10/15 3.. 2005/10/15 4. (1/3).. 2005/10/15 5. (2/3).. 5000 m/s 1500 m/s 300 m/s 2005/10/15 6. (1/2).. 2005/10/15 7. (2/2).. ~ cm . 3000Hz .. 2005/10/15 8.. ( ).. 2005/10/15 9.. 2005/10/15 10.. ( ) .. 2005/10/15 11. (1/2).. 90dB . 80~120 dB .. 2005/10/15 12. (2/2).. A 90 dB . 2005/10/15 13.. A .. B .. C .. D .. 2005/10/15 14.. ( . ) . 40 % . 2005/10/15 15.. A . 65~75 dB 80 dB.. 2005/10/15 16.. 2005/10/15 17. 2.. 2005/10/15 18.. (Hearing Loss) . ( . ) .. 4000. Hz . 2005/10/15 19. ( ).. 22 .. 2005/10/15 20. ( ).. 1. (Sensorineural Hearing Loss).. a.. b.. c. ( Presbycusis). 2. (Conductive Hearing Loss) .. 2005/10/15 21.. (Temporary Threshold Shift TTS) .. 2005/10/15 22.. (Permanent Threshold Shift, PTS) .. 4000 Hz . 4000 Hz .. 2005/10/15 23. ( ). (PTS) .. 2005/10/15 24.. ( . Presbycusis) .. 2005/10/15 25. ? 1.. 2.

2 3.. 4.. 5.. 6.. 7.. 2005/10/15 26.. 2005/10/15 27.. (Masking) . 2005/10/15 28.. (Annoyance) .. 2005/10/15 29.. 1.. 2.. 3.. 4.. 5.. 6.. 7.. 2005/10/15 30. 3.. 2005/10/15 31.. 2005/10/15 32.. (A) ( ) (B) . (C) :dB.. ( 1) 75A 65A 55A 45A. ( 2). 70B 65B 60B 50B. 80C 70C 65C 50C. ( 3) 80A 70A 60A 50A.. 80B 75B 65B 55B. 85C 80C 75C 60C. ( 4) 70A 55A 50A 40A. 65B 55B 50B 40B. 65C 55C 50C 40C. ( 1) ( 2) ( ) ( ) ( 3). ( 4) ( ) ( ) . 2005/10/15 33.. 2005/10/15 34.. :dB.. ( ) . 75(50) 70(50) 70(50) 70. (Leq). 80(65) 75(65) 75(65) 70. 100 85 85 80. (Lmax) .. 2005/10/15 35.. ( . ). 60. dB 65 dB . 65. dB 75 dB . 75. dB . 2005/10/15 36.. 1. 90dB .. 2.. 3. 140dB . 115dB . 4. 85dB . 50% .. 5. 90dB .. 2005/10/15 37.. 85dB .. 2005/10/15 38.. 1. ( ) . 2.. 3.. 4.. 5.. 6. ( ) .. 7.. 2005/10/15 39. 4.. 2005/10/15 40.. 2005/10/15 41.. (1) ( ). (2) . (3) .. (1) . (2) . (3) . (4) . (5) . (6) . 2005/10/15 42.. ( ) .. 2005/10/15 43.. 2005/10/15 44.. 2005/10/15 45.

3 (barrier) .. (transmissionloss TL) . TL .. 2005/10/15 46.. 2005/10/15 47.. ( air space ).. 2005/10/15 48.. 2005/10/15 49.. 2005/10/15 50.. 1) . 2) . 3) . 4) . 5) . 6) . 2005/10/15 51. ( ) . : . : .. 2005/10/15 52.. : CE . : NRR.. 2005/10/15 53.. 1.. 2.. 3.. 4.. 5.. 6.. 7.. 2005/10/15 54.. 1.. 2.. 1 .. 2.. 3.. 3 4.. 2005/10/15 55. ? 1.. 2.. 3.. 4.. 2005/10/15 56.. 2005/10/15 57.. 1.. 2.. 3.. 4.. 5.. 6.. 7.. 2005/10/15 58.. 2005/10/15 59.