PCB-378A04
- 1/2 - ICP® - ultra low noise" precision microphone for free-field applications,
- equivalent input noise dB(A) only 5.5,
- combination of microphone capsule PCB 377A04 and
preamplifier PCB 426E01, - sensitivity 450 mV / PA,
- Dynamic range > 100 dB,
- frequency range 10... 20,000 Hz,
- BNC connector,
- calibrated system
| basic data | |||
| Nominal diameter of microphone | 1/2 " | ||
| application | free-field | ||
| Sensitivity | 450 mV / PA | [6] | |
| sensitivity (±2 dB) | -7 dB in relation to 1 V / PA | [6] | |
| frequency range (±2. dB) | 10 … 16,000 Hz | ||
| frequency range (±4 dB) | 5 … 20,000 Hz | ||
| lower limiting frequency (-3 dB) | 2 … 5 Hz | ||
| noise | 5.5 dB(A) in relation to 20 µPa | [4] | |
| noise | < 6.5 dB(A) in relation to 20 µPa | ||
| Dynamic range (for THD ≤ 3%) | > 80 dB in relation to 20 µPa | [1] | |
| dynamic range (for THD ≤ 3%) | > 100 dB in relation to 20 µPa | [2] | |
| maximum SPL (peak) | 130 dB in relation to 20 µPa | [5] [4] | |
| TEDS Chip | by default integratedt | [3] | |
| conditions | |||
| temperature range (operation) | 14 … 176 ° F | 10 … 80 ° C | |
| Temperature coefficient of sensitivity | 0,005 dB/°F | 0.009 dB / ° C | [6] |
| influence of static pressure | -0.013 dB/kPa | [6] | |
| Humidity coefficient of sensitivity | ±. 001 dB/% RH | [6] | |
| technical characteristics | |||
| polarization voltage | 0 V | [7] | |
| Constant power supply | 4 … 20 mA | ||
| Bias voltage | 12 … 16 V DC | ||
| Maximum output range | ±2 V pk | ||
| output impedance | < 50 Ω | ||
| Physical properties | |||
| Housing material | stainless steel alloy | ||
| Pressure | back | [8] | |
| electrical connection | BNC Jack | ||
| Size - diameter (with protection cap) | 0.52 in | 13.2 mm | |
| size - diameter (without cap) | 0.50 in | 12.7 mm | |
| Size - height (with cap) | 4.03 in | 102.2 mm | |
| size - height (without protection cap) | 3.99 in | 101,2 mm | |
| Mass | 1.81 oz | 51.3 grams | [4] |
| hints | |||
| [1] | over the whole frequency range | ||
| [2 ] | Exceeding 5,000 Hz | ||
| [3] | TEDS memory in accordance with IEEE PP1451. 4 | ||
| [4] | typically | ||
| [5] | damage threshold | ||
| [6] | based on 1,000 Hz | ||
| [7] | Prepolarized | ||
| [8] | pressure compensation by the pre | ||
| [9] | details: see PCB Declaration of conformancePS138 | ||
| Accessories | |||
| ACS-156 | calibration a microphone preamplifier combination in anechoic room including review of the Noise | -1 |
PCB-378A04
