CRY3281 Free-field Microphone, 1/2",External-polarized, 12.5mV/Pa

CRY3281 Free-field Microphone, 1/2",External-polarized, 12.5mV/Pa

The CRY3281 is a 1/2-inch externally polarized measurement microphone designed for high-frequency and high-dynamic-range acoustic measurements.

Boasting a distinctive design, the CRY3281 delivers a flat frequency response across a measurement range of up to 40 kHz. Capable of withstanding sound pressure levels up to 160 dB, it is ideally suited for high-definition audio measurements and advanced ultrasonic acoustic applications.

  • High-frequency free-field microphone
  • Extensive compatibility
  • Durable, reliable, and high-quality
CRY3281 Measurement Microphone Typical Frequency Response

The graph (right) shows the frequency response curves for 0° incidence in a free-field environment and the frequency response curves obtained using the electrostatic excitation method.

CRY3281 Measurement Microphone Typical Frequency Response

The graph (right) shows the frequency response curves for 0° incidence in a free-field environment and the frequency response curves obtained using the electrostatic excitation method.

Technical Specifications

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Technical specification
Field Type
Field Type
Free-field
Noominal Sensitivity
Noominal Sensitivity
12.5mV/Pa, -38±1.5dB re 1V/Pa
Frequency Response
Frequency Response
3.15Hz to 40kHz±2dB
Polarization Voltage
Polarization Voltage
200V
Dynamic Range(re.20uPa)
Dynamic Range(re.20uPa)
23dBA to 160dB
Operating Temperature
Operating Temperature
-30 to +80℃ (-22 to +176℉)
Temperature Stability
Temperature Stability
0.005dB/℃(-10 to +50℃) 0.003dB/℉(+14 to +122℉)
Static Pressure Stability
Static Pressure Stability
-0.01dB/kPa
Operating Humidity Range
Operating Humidity Range
0 to 90%RH no condensation
Humidity Stability
Humidity Stability
< 0.1dB (0 to 90%RH no condensation)
Pressure Equalization Vent
Pressure Equalization Vent
Rear vented
IEC 61094-4 Type
IEC 61094-4 Type
WS2F
Height with Grid
Height with Grid
12.7mm (0.500")
Diameter with Grid
Diameter with Grid
13.2mm (0.520")

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1/2 inch
External-polarized
Addition Plug-in
Microphone Array
Intrinsic Safe
Test Contents
Number of Channels
IEC 61672-1:2013 Class
Feature
Structure
Operation
Size of Microphone
Polarization
Application
Contact Testing