1/4-INCH PRESSURE-FIELD MICROPHONE, EXTERNALLY POLARIZED
Pressure-field microphone for high-level and high-frequency measurements over a frequency range of 4 Hz to 70 kHz.
TYPE 4938
Pressure-field ¼-inch Microphone Type 4938 is designed for high-level and high-frequency measurements. The microphone is geared to withstand rough handling and high temperatures of up to 300°C (572°F).
Select filters:
| Code | Sensibilità | Margen dinámico inferior | Temperatura minima | Temperatura massima | Temperatura minima | Temperatura massima |
|---|---|---|---|---|---|---|
| -4938-A-011- | 1.4 mV/Pa | 42 dB | -20 °C | 80 °C | -4 °F | 176 °F |
| -4938-D-011- | 1.4 mV/Pa | 42 dB | -20 °C | 80 °C | -4 °F | 176 °F |
| -4938-L-002- | 1.4 mV/Pa | 42 dB | -20 °C | 80 °C | -4 °F | 176 °F |
| -4938-W-001- | 1.6 mV/Pa | 30 dB | -40 °C | 300 °C | -40 °F | 572 °F |
| 1/4'' Pressure-field Microphone Type 4938 | Data Sheets | English |
| TEDS Microphones | Data Sheets | English |
| TEDS Microphones | Data Sheets | Japanese |
| Standard | IEC 61094 |
| Sound field | Pressure field |
| Polarization | Classical |
| Sensitivity | 1.4 mV/Pa, 1.6 mV/Pa |
| Lower frequency | 4 Hz |
| Higher frequency | 70 kHz |
| Lower dynamic range | 42 dB, 30 dB |
| Higher dynamic range | 172 dB |
| Diameter | 1/4 inch |
| Venting | Side |
| Minimum Temperature | -20 °C, -40 °C |
| Maximum Temperature | 80 °C, 300 °C |
| Minimum Temperature | -4 °F, -40 °F |
| Maximum Temperature | 176 °F, 572 °F |
| Output signal (connectivity) | Passive |
List of accessories available for all variants of this family
La unidad se ensambla en un entorno de sala limpia y se sella, después de lo cual se le asigna un único número de tipo y un único número de serie. Esto significa que la unidad combinada tiene mejor precisión y estabilidad a largo plazo y se maneja como una unidad completa.
La unidad también contiene TEDS, lo que significa que en ella se almacena información sobre el número de serie, el tipo y la sensibilidad.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, MicroStrain and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
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