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| ÀàÐÍ | NL-21 | NL-31 |
| ºÏÓó߶ȣº IEC 60651£º1979 IEC60804:2000 IEC/CDV61672-1 | Type 2 | Type 1 |
| ÕÉÁ¿Ö°ÄÜ | Lp,Leq,Le,Lmax,Lmin,Ln | |
| ˲ʱÕÉÁ¿ | Lpeak,Lcpeak,L A1 ,L aleq, Lceq,L ATm5 | |
| ÕÉÁ¿¹¦·ò | 10s,1m,5m,10m,15m,30m,1h,8h,24h,ÊÖ¶¯ | |
| Á¿³Ì (A,C¼ÆȨ) | 28¡«138dB | |
| ƵÂÊÁìÓò | 20Hz¡«8kHz | 20Hz¡«12.5kHz |
| ×î´óÕÉÁ¿ÁìÓò | 141dB | 141dB |
| Âó¿Ë·çÀàÐÍ | UC-52 | UC-53A |
| Á¿³ÌÑ¡Ôñ | ÒÔ 10dBΪ²½³¤·Ö6¼¶ | |
| ÏßÐÔÁìÓò | 100dB | |
| ¹¦·òÏìÓ¦ | F,S,I | F,S,I |
| ƵÂʼÆȨ | A,C,FLAT | |
| ÓÐЧֵ¼ì²¨ | Êý×Ö´¦Öà | |
| ²ÉÑù¹¦·ò (RMS) | 30.3 ¦Ì s | 20.8 ¦Ì s |
| ÄÚÖòο¼ÐźŠ| ÓÐ | ÓÐ |
| ʵʱÖÓ | ÓÐ | ÓÐ |
| ´æÖüÖ°ÄÜ | ÊÖ¶¯¼°×Ô¶¯´æÖü | |
| ÊÖ¶¯´æÖü | 100×é | 100×é |
| ×Ô¶¯´æÖü 1 | 540000¸ö | 540000¸ö |
| ×Ô¶¯´æÖü 2 | 57600×é | 57600×é |
| °´Ê±Ö°ÄÜ | ÓÐ | ÓÐ |
| µçÔ´ | 4½ÚÎåºÅµç³Ø | |
| ¸Éµç³ØÊÙÃü | 32Ó×ʱ | 27Ó×ʱ |
| ACÊÊÅäÆ÷(¿ÉÑ¡) | ÓÐ | ÓÐ |
| ÏÔʾÆ÷ | Òº¾§ÏÔʾÆ÷ | |
| ±³¹â | ÓÐ | ÓÐ |
| AC/DCÊä³ö | ÓÐ | ÓÐ |
| RS-232CͨѶ¿Ú | ÓÐ | ÓÐ |
| Äڴ濨²Û | ÓÐ | ÓÐ |
| ³ß´ç¼°³ÁÁ¿ | 260¡Á76¡Á33mm£¬400¿Ë | |
| 1/1,1/3Â˲¨Æ÷(¿ÉÑ¡) | ÓÐ | ÓÐ |
| Âó¿Ë·çµ¢¸éµçÀ (¿ÉÑ¡) | ÓÐ | ÓÐ |
| ´òÓ¡»ú (¿ÉÑ¡) | ÓÐ | ÓÐ |
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• ACÊÊÅäÆ÷ ¡¡¡¡¡¡¡¡¡¡¡¡¡¡ ¡¡¡¡Ò»¸ö
• 1/1 ¡¢ 1/3 Â˲¨Æ÷¡¡¡¡¡¡¡¡ ¡¡Ò»¸ö
• ´æÖü¿¨ ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ Ò»¿é
• Âó¿Ë·çµ¢¸éµçÀ ¡¡¡¡¡¡¡¡¡¡¡¡ Ò»¸ù
• ´òÓ¡»ú ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ һ̨
• ÉùÒôУ¶ÔÆ÷ ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ һ̨
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