Bruel & Kjaer 4191 Precision Microphone
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Bruel & Kjaer 4191 is a class 1 precision microphone for high-precision acoustic measurements with external polarization and wide dynamic range.
Product details
| Model | 4191 |
| Manufacturer | Bruel & Kjaer |
| Category | Sound Level Meters |
| Availability | Made to order |
Description
Overview
The Bruel & Kjaer Type 4191 is a class 1 precision microphone designed for high-precision, free-field measurements with wide bandwidth. Being externally polarized, it must be used with a classical preamplifier and is ideal for equipment complying with IEC 61672 class 1 standards.
Key Features
- Externally polarized design requiring classical preamplifier
- Class 1 precision microphone for acoustic measurements
- Wide frequency range extending to 40 kHz
Applications
- Precision acoustic measurements up to 40 kHz
- Premium class sound level meters
- Equipment complying with IEC 61672 class 1
Specifications
| Sensitivity | 12.5 mV/Pa |
| Frequency Range | 3.15 Hz to 40 kHz |
| Dynamic Range | 20 to 162 dB |
| Polarization | 200 V |
| Operating Temperature | -30°C to +300°C |
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Bruel & Kjaer 4191 Precision Microphone
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