PCB Piezotronics
PCB Piezotronics 378A12 377A12 With 426B03 (Teds)
PCB Piezotronics · Acoustics & Microphone
Model 378A12:1/4-inch pressure prepolarized 377A12 microphone, with 1/4-inch preamplifier 426B03 and TEDS programmed
Key Features
Model 378A12:1/4-inch pressure prepolarized 377A12 microphone, with 1/4-inch preamplifier 426B03 and TEDS programmed
- Nominal Microphone Diameter: 1/4"
- Frequency Response Characteristic: Pressure
- Frequency Range: (±2dB)5 to 20000 Hz (5 to 20000 Hz)
- Dynamic Range: 182 dB re 20 µPa
Spesifikasi
| Nominal Microphone Diameter | 1/4" |
|---|---|
| Frequency Response Characteristic | Pressure |
| Sensitivity (±3 dB) | -72 dB re 1 V/Pa / [3] |
| Sensitivity | 0.25 mV/Pa / [3] |
| Frequency Range (±2 dB) | 5 to 20000 Hz |
| Lower Limiting Frequency (-3 dB) | 0.75 to 4.0 Hz |
| Inherent Noise | 60 dB(A) re 20 µPa / [1] |
| Dynamic Range (3% Distortion Limit) | 182 dB re 20 µPa / [1] |
| Maximum Sound Pressure Level(Peak) | >194 dB re 20 µPa |
| TEDS Compliant | Yes / [2] |
| Temperature Range (Operating) | -40 to +176 °F / -40 to +80 °C / [4] |
| Temperature Coefficient of Sensitivity (+14 to +158°F (-10 to +70°C)) | 0.004 dB/°F / 0.007 dB/°C / [1] [3] |
| Static Pressure Coefficient | -0.001 dB/kPa / [1] [3] |
| Humidity Coefficient of Sensitivity (0 to 100%, non-condensing) | ±0.001 dB/%RH / [3] |
| Influence of Axial Vibration (0.1g (1 m/s²)) | 72 dB re 20 µPa / [1] |
| Polarization Voltage | 0 V / [5] |
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