- 品牌/商標：G.R.A.S.丹麥
- 企業類型：貿易商
- 新舊程度：全新
- 產品型號：G.R.A.S.40AE
概要：
40AE的設計是參考?”壓力的麥克風，但對于優化自由場測量的靈敏度提高12dB。結果是標稱靈敏度為50 mV/Pa，稍長的麥克風外殼，正常減少的動態范圍。
40AD?”外部極化壓力麥克風。
40AE單獨工廠校準和使用校準圖表說明其具體的開路靈敏度，壓力，和自由場頻率響應校正.
典型應用與應用
強大的設計使40AE全面自由場的自然選擇的特性，高靈敏度的麥克風，適用于野外和實驗室測量。
規格參數：
頻率范圍: 3.15 Hz to 20 kHz
動態范圍: 15 dB(A) to 148 dB
靈敏度: 50 mV/Pa
技術規格：
Frequency range (±1 dB) | Hz | 5 to 10 k |
Frequency range (±2 dB) | Hz | 3.15 to 20 k |
Dynamic range lower limit (microphone thermal noise) | dB(A) | 15 |
Dynamic range lower limit with G.R.A.S. preamplifier | dB(A) | 17 |
Dynamic range upper limit | dB | 148 |
Dynamic range upper limit with G.R.A.S. preamplifier @ +28 V / ±14 V power supply | dB | 142 |
Dynamic range upper limit with G.R.A.S. preamplifier @ +120 V / ±60 V power supply | dB | 148 |
Dynamic range upper limit with G.R.A.S. CCP preamplifier | dB | 138 |
Open-circuit sensitivity @ 250 Hz (±2 dB) | mV/Pa | 50 |
Open-circuit sensitivity @ 250 Hz (±2 dB) | dB re 1V/Pa | -26,0 |
Resonance frequency | kHz | 14 |
Microphone cartridge capacitance, typ. | pF | 14 |
Microphone venting | Rear | |
IEC 61094-4 Compliance | WS2F | |
Temperature range, operation | °C / °F | -40 to 120 / -40 to 248 |
Temperature range, storage | °C / °F | -40 to 85 / -40 to 185 |
Temperature coefficient @250 Hz | dB/°C / dB/°F | -0.01 / -0.006 |
Static pressure coefficient @250 Hz | dB/kPa | -0,014 |
Humidity range non condensing | % RH | 0 to 100 |
Humidity coefficient @250 Hz | dB/% RH | -0,001 |
Influence of axial vibration @1 m/s2 | dB re 20 μPa | 62 |
CE/RoHS compliant/WEEE registered | Yes / Yes,Yes | |
Weight | g / oz | 6.50 / 0.229 |
