- ตัวอย่าง 1
Allows easy measurement of airborne sound in buildings (D value, L value etc.), and floor impact sound insulation performance measurement with a single instrument.
JIS and ISO compliant measurements and evaluation index calculation can also be performed with the NA-28 itself.
Data can be saved as text files, allowing use of an Excel macro for index calculation.
In addition, if the waveform recording card NX-28WR is also used, simultaneous sound pressure level waveform recording during measurement is also possible.
|มาตรฐานทางเทคนิค / กฏหมาย / ระเบียบ|
●ISO 140-5:1998「Acoustics -- Measurement of sound insulation in buildings and of building elements -- Part 5: Field measurements of airborne sound insulation of facade elements and facades」
●ISO 16032:2004「Acoustics -- Measurement of sound pressure level from service equipment in buildings -- Engineering method」
|NA-28||Sound Level Meter, Class 1 (and 1/3 octave band real-time analyzer)|
|NX-28BA||Building Acoustic Card|
|NX-28WR||Waveform Recording Card|
|FI-01||Light Floor Impact Sound Generator|
|Noise generator SF-06 + power amplifier + speaker (reverberation time)|