Fiber optic acoustic sensors
Microphone
The microphone designed by Phonoptics is an acoustic sensor adaptable to the most hostile environments in different versions :
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Standard (metal)
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Plastic (suitable for EMI/RFI, IRM environments)
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High temperatures (Kovar metal or ceramic, up to 350°C)
Phonoptics has overcome the limits of microphones by using a unique optical fiber. So, the Phonoptics microphone combines small sensor size and high sensitivity while being resistant to the outdoor environment. Due to the technology developed, we can adapt the shape of the sensor to obtain previously unexpected features.
For discreet apes, go see the Panthon1300 product sheet
Main features
Standard version
Sensitivity : 50mV/Pa
Bandwidth : 20 Hz to 16 kHz
RSB (@1kHz, 1pa) : 70dB
Equivalent noise level : dB ( mPa)
Maximum pressure : 160dB (2kPa)
Event equalization : back (rear vented)
Operating temperature : -25°C to 120°C
Coefficient temperature : 0,006dB/K
Sensitivity to magnetic fields : void
Sensitivity moisture : void
Cable length : standard 1m, up to 10km (extension)
Linear mitigation : 0,4dB/km
Type of fiber : acrylate MM50/125/250
Dimension : diameter 10mm, length 20mm. Adapter ½ pouce available
Weight : 3 gram
Available in metal and plastic
High temperature version
Sensitivity : 10mV/Pa
Bandwidth : 20 Hz to 16 kHz (-3dB)
RSB (@1kHz, 1pa) : 70dB
Event equalization : back (rear vented)
Operating temperature : -55°C to 250°C, 350°C temporary
Coefficient temperature : 0,006dB/K
Sensitivity to magnetic fields : void
Sensitivity moisture : void
Cable length : standard 1m, up to 100m (extension)
Linear mitigation : 0,4dB/km
Type of fiber : polyimide 50/125
Dimension : diameter 10mm, length 20mm. Adapter ½ pouce available