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  3. Array Microphone Type 40PH

Array Microphone Type 40PH

Array Microphone Type 40PH
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Array Microphone Type 40PH

Product catalog summary
Overview: The G.R.A.S. Array Microphone Type 40PH is designed for general-purpose measurements in arrays and matrices. It features a wide frequency range up to 20 kHz and a dynamic range up to 135 dB. The microphone includes an integrated CCP preamplifier and a TEDS chip for easy programming and interchangeability.
Specifications:
  • Nominal Sensitivity: 50 mV/Pa at 250 Hz (±2 dB)
  • Frequency Response: 10 Hz - 20 kHz with varying dB tolerances
  • Dynamic Range: Max output at 135 dB, thermal noise below 32 dBA
  • Phase Match: ±3° from 100 Hz to 3 kHz, ±5° from 3 kHz to 5 kHz
  • Temperature Range: -10 °C to +50 °C
  • Output Impedance: < 50 Ω
  • Dimensions: Length 60.0 mm, Diameter 7.0 mm, Weight 5.5 g
  • Power Supply: 2 mA to 20 mA (typically 4 mA)
Features and Applications:
  • Multi-channel measurements
  • Sound-field analyses
  • Sound-power measurements
  • Concurrent spatial and transient measurements
Accessories:
  • CCP Supply Type 12AL
  • Windscreens (set of 6) AM0364
  • Rain-protection cap RA0092
  • Array Modules PR0001, PR0002
  • Cables (SMB to BNC) available in various lengths
  • Pistonphones/Calibrators: Types 42AA, 42AD, 42AB
Calibration: Each microphone is individually checked and calibrated before leaving the factory, with a calibration chart provided.
Graphical Data: Figure 2 illustrates the typical frequency response, showing both free-field and pressure responses.
See more

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.