Nor145 مقابل Nor150
كلاهما محللان Class 1 من Norsonic، لكن يختلفان في عدد القنوات — وهذا يحدد بالضبط ما يمكنك قياسه. يوضح هذا الدليل متى يكفي الـ Nor145 ومتى تحتاج إلى Nor150.
جدول المقارنة
| الميزة | Nor145 | Nor150 |
|---|---|---|
| القنوات | 1 | 2 |
| فئة IEC 61672 | 1 | 1 |
| شدة الصوت (ISO 9614) | ✗ | ✓ |
| صوتيات المباني — طريقة 2 قناة | ✗ | ✓ |
| صوتيات المباني — طريقة 1 قناة | ✓ | ✓ |
| الضوضاء البيئية | ✓ | ✓ |
| ضوضاء العمل | ✓ | ✓ |
| صوتيات الغرف | ✓ | ✓ |
| مودم 4G/LTE مدمج | ✓ قياسي | اختياري |
| وزن تقريبي | ~650 g | ~1 kg |
الأسئلة الشائعة
What is the main difference between the Nor145 and the Nor150?
The core difference is channel count: the Nor145 is a single-channel Class 1 analyser, while the Nor150 is a dual-channel Class 1 analyser. This means the Nor150 can measure two microphone signals simultaneously — essential for sound intensity measurements (which require a phase-matched mic pair) and for the two-channel building acoustics method where source and receiving rooms are measured at the same time. Both instruments are IEC 61672 Class 1 and share the same Nor850 software ecosystem.
Can the Nor145 do building acoustics measurements?
Yes. The Nor145 fully supports ISO 16283 building acoustics measurements using the one-channel method: you measure source and receiving rooms sequentially rather than simultaneously. This takes slightly longer but gives the same valid DnT,w and L'nT,w results. The Nor850 BA1 software module handles the calculation automatically. For teams doing high volumes of building acoustics work where speed matters, the Nor150 two-channel method is faster.
Do I need the Nor150 for sound intensity measurements?
Yes. Sound intensity requires a dual-channel analyser to cross-correlate two phase-matched microphone signals in real time. The Nor150 with intensity firmware and the Nor1290 probe kit is the correct combination. The single-channel Nor145 cannot perform sound intensity measurements.
Which instrument connects to NorCloud for remote data access?
Both the Nor145 and Nor150 can connect to NorCloud. The Nor145 has a built-in 4G/LTE modem and GPS as standard, making it particularly convenient for unattended or semi-attended environmental monitoring. The Nor150 can also connect via 4G/LTE with the appropriate modem option. NorCloud lets you view live data, download spectra, and receive alerts from either instrument remotely.
Can both instruments use the same Nor850 software?
Yes, both the Nor145 and Nor150 use the same Nor850 reporting software platform. The available modules differ by instrument capability: the Nor145 supports BA1 (building acoustics ISO 16283, 1-ch), environmental noise, occupational noise (noise at work), and room acoustics. The Nor150 additionally supports sound intensity (SI module), building acoustics 2-channel method (BA1 2ch), and advanced vibration analysis.