½-INCH PRESSURE-FIELD MICROPHONE, PREPOLARIZED, 3 HZ – 10 KHZ
圧力フィールドマイクロスコープは、3 Hz～10 kHzの周波数範囲において、カプラ測定およびキャビン内測定（ANED規格準拠）用に設計されています。
TYPE 4953
この高感度圧力フィールドマイクロスコープは、カプラの測定や硬い表面に近い場所での測定などの用途で必要とされる圧力フィールド応答に最適化されています。
| Document | タイプ | 言語 |
|---|---|---|
| ½-inch Prepolarized Pressure-field Microphone - Type 4953 | データシート | English |
| プロパティ | 値 |
|---|---|
| Standard | ANSI S1.4 |
| Sound field | Pressure field |
| Polarization voltage | 0V |
| Sensitivity | 50 mV/Pa |
| Lower limiting frequency | 3 Hz |
| Higher limiting frequency | 10 kHz |
| Inherent noise | 16 dB(A) |
| Upper limiting of dynamic range | 146 dB |
| Diameter | 1/2 inch |
| Venting | Rear |
| Minimum Temperature | -30 °C |
| Maximum Temperature | 150 °C |
| Minimum Temperature | -22 °F |
| Maximum Temperature | 302 °F |
The frequency response of Type 4953 has been carefully designed in such a way that this microphone also has a good random incidence response, making it suitable for in-cabin noise measurements up to 10 kHz, for instance in the automotive industry.
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