Dynamic Pressure Sensor - P-308-C

• High Intensity Acoustic Microphone
• Operational Range 100 to 190 dB
• Vibration Compensated
• Charge Sensitivity: 4 pC rms Min.
• Pressure Range: 100 to 190 dB
• Temperature Range: -100 to +300 Deg F (-73 to +150 Deg C)​
• Humidity: 0 to 100% R.H.​

  • Model Number: P-308-C
  • Data Sheet: Date Sheet File
Quantity:
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  • Dynamic Pressure Sensor
  • Dynamic Pressure Sensor
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Product Specification

P-308-C Dynamic Pressure Sensor Description

The Columbia Model P-308-C Piezoelectric Microphone is designed to measure a wide range of varying high intensity sound pressure levels from 110 dB to 190 dB. Incorporating a unique “opposing” seismic system design, the unit is effectively insensitive to external vibration environments. This microphone offers unusually high charge sensitivity, wide frequency response and excellent linearity.


The Model P-308-C features a compact design weighing less than 20 grams. The advanced stainless steel case design assures exceptional mechanical isolation and rugged construction for use under the most severe environmental conditions.

P-308-C Dynamic Pressure Sensor Features 
• High Intensity Acoustic Microphone
• Operational Range 100 To 190 dB
• Vibration Compensated

P-308-C Dynamic Pressure Sensor Specifications
Transfer / Electrical

Charge Sensitivity
4 pC rms Min.
Pressure Range
100 to 190 dB
Pressure Overload (without damage)
30 psi
Frequency Linearity
+/-2 dB, 5 to 6,000 Hz
+/-3 dB. 6,000 to 10,000 Hz
Resonant Frequency
27 KHz Min.
Amplitude Linearity
+/-0.5 dB of Full Scale SPL over Dynamic Range
Capacitance
3600 pF (Nominal)
Output Resistance
1 x 104 Megohms
Grounding
Isolated
Environmental

Temperature Range
-100 to +300 Deg F (-73 to +150 Deg C)
Humidity 1
0 to 100% R.H.
Vibration Limit
100 g Max.
Shock Limit
100 g Max
Physical

Size
0.740 In. Dia. x 0.770 In. H (19.0 mm Dia x 19.6 mm H)
Weight
0.67 Oz (19 Gm)
Material Body & Diaphragm 
Type 316 Stainless Steel
Electrical Interface
#10-32 Coaxial Connector
Mounting
Clamps Supplied for Rigid Mounting
NOTES:
1  With Connector Mated or Protected, Unit is Hermetically Sealed.

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