Bruel & Kjaer - 2631 Microphone Carrier System Microphone system with carrier frequency. For use with the 1/2 "type 4147 microphone. It allows measurements of very low frequency pressure variatio ...

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Bruel & Kjaer - 2631 Microphone Carrier System

Microphone system with carrier frequency. For use with the 1/2 "type 4147 microphone. It allows measurements of very low frequency pressure variations, acoustic pulses, sonic explosions, etc. Mains power supply.

Bruel & Kjaer - 2631 Microphone Carrier System
Diameter	1 / 2 "and 1 "
Frequency range	DC — 1 0 0 kHz
Gain	(1 ,2 — 6 V/pF)
Input impedance	( 1 7 — 2 1 pF) ( 4 0 — 7 0 pF)
Maximum output (peak)	1 0 V ( 1 0 mA)
Output impedance	< 10 Ohm
Noise (weighted A)	0 , 1 10-3 pF
Dimensions(Dia. « L) mm	H*W*D = 1 3 3 x 6 1 x 2 00
Extension cables	AO 0 0 2 7 / 2 8 / 29

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