¾ÆÀ̵ð ÀúÀå  

 
 
   Technical Acoustics

 

¹Á·¯ºñºñ¿¥Àº ¼³¸³Ãʱ⠺ÎÅÍ Àΰ£°ú °ü·ÃÇÑ À½¿¡ ´ëÇÑ ¿¬±¸¸¦ ¼öÇàÇÏ¿´½À´Ï´Ù. ÇöÀç±îÁöµµ ¹Á·¯ºñºñ¿¥ ±×·ìÀº ½É¸®À½Çâ°ú °ü·ÃÇÑ ¿¬±¸¿Í ÀÌ¿¡ ´ëÇÑ °á°úÀÇ ºÎ»ê¹°À» PAK system¿¡ Àû¿ëÇϰí ÀÖ½À´Ï´Ù.

 
 
  PAK Reverberation
 


ÀÜÇâ¿¡ °ü·ÃÇÑ ÆÄ¶ó¹ÌÅÍÀÇ ÃøÁ¤ÇÏ´Â ¸ðµâ

- ÀÜÇâ½Ã°£, ÈíÀ½°è¼ö, µî°¡ ÈíÀ½¸éÀû °áÁ¤
- ISO 3382¿¡ ÀÇÇÑ ÀÜÇâ½Ã°£ ÃøÁ¤
- Rieter-alpha cabin, motor vehicle cabin, acoustic test bench µî¿¡¼­ Ȱ¿ë °¡´ÉÇϸç,
- Â÷·®ÀÇ Articulation Index¸¦ ÃÖÀûÈ­¿¡µµ ÀÌ¿ëµÈ´Ù.

- ÃøÁ¤ ÀÜÇâ½Ã°£ : T60, T20 ¶Ç´Â T30, T10 ¿Í T15, T<min. decay> ±×¸®°í TNOISE.

 
¡ã ±×¸². Decay Curve
 
  PAK Impedance Tube
 


ÀÌ ¸ðµâÀº impedance tube (Áï, Kundt Tube)¸¦ ÀÌ¿ëÇÑ Àç·áÀÇ ÈíÀ½Æ¯¼º ÃøÁ¤À» Áö¿øÇÑ´Ù.

ISO 10534-2: Acoustics - Determination of sound absorption coefficient and impedance in
impedance tubes.


 
¡ã ±×¸². ÈíÀ½·ü ÃøÁ¤ °á°ú
  PAK Sound Power
 


Á¦Ç°À¸·Î ºÎÅÍ ¹æ»çµÇ´Â ¼ÒÀ½ÀÇ ÆÄ¿ö¸¦ ÃøÁ¤ÇÑ´Ù. ÀÌ ¼ÒÀ½ÆÄ¿ö´Â ÃøÁ¤È¯°æ¿¡ µû¶ó ´ÙÀ½°ú °°Àº ±Ô°ÝÀ»
ÀÌ¿ëÇÑ´Ù.

ÀÜÇâ½Ç¹ý:
   
ISO 3741: Acoustics - Determination of sound power levels of noise sources - Precision
methods for broad-band sources in reverberation rooms

ÀÚÀ¯ À½Àå¹ý
   
ISO 3740: Acoustics - Determination of sound power levels of noise sources - Guidelines
for the use of basic standards and for the preparation of noise test codes
ISO 3744: Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering method in an essentially free field over a reflecting plane
ISO 3746: Acoustics - Determination of sound power levels of noise sources - Survey method
DIN 45635: Measurement of airborne noise emitted by machines

PAK Àº partial sound power °è»êµµ Áö¿øÇϸç, ÀÓÀÇÀÇ ÃøÁ¤ Á¡¿¡¼­ °è»êÇÒ ¼ö ÀÖ´Ù.


 
¡ã ±×¸². Sound power ÃøÁ¤ ¹æ½Ä ¿¹ ¡ã ±×¸². Sound power ½Ç ÃøÁ¤ ¿¹
 
  PAK Intensity





   ¼ÒÀ½ÆÄ¿ö¿Í Á¤»óÀûÀÎ »óÅ¿¡¼­ÀÇ ¼ÒÀ½¿øÀÇ À§Ä¡¸¦ ÆÇº°Çϴµ¥ ÀÌ¿ë
 
DIN EN ISO 9614 Acoustics - Determination of Sound power level of Noise sources from Sound intensity measurements

EN 61043 Electroacoustics - Devices for Measuring Sound intensity; Measuring via Pairs of pressure-sensing Microphones

 
¡ã ±×¸². µ¶ÀÏ MTG (»ç) ÀÎÅÙ½ÃÆ¼ ŽħÀÚ ¡ã ±×¸². ³×´ú¶õµå Microflown(»ç)ÀÇ P-U probe
   
¡ã ±×¸². Discrete measurement mode ¡ã ±×¸². Continuous measurement mode
   
     
     

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