50 - 100 dB microphone 46DE

100 - 150 dB150 - 200 dB0 - 5 mV/Pa

46DE is a low-sensitivity pressure microphone set for sound measurements at high levels and high frequencies. It consists of a 40DD 1/8" pressure microphone and a 26CE 1/8" preamplifier. Normally a 1/8" microphone is used with a 1/4" preamplifier, but for 46DE GRAS has developed a 1/8" preamplifier, making the 46DE microphone set the world's smallest. A front-vented version is available, 46DE-FV 1/8'' CCP Pressure Standard Microphone Set, Front Vented. Typical application and use As the 46DE is smaller than any other measurement microphone, it can be used in any application where size constraints previously made it impossible to measure, be it separate microphones mounted in very confined spaces or a number of 46DEs mounted closely together for improved resolution. This fact opens the door to more application than we can suggest here. 46DE's low sensitivity and small size makes it ideal for measurements of high levels and high-frequencies, and for measurements of im pulsive noise. The low sensitivity and very small form factor makes the 46DE extremely versatile with respect to signal levels, frequency range and applications. It can be used for measurements of turbulence and flow in wind tunnels and for engine testing. It is also ideal for measurements of impulsive noise from for example inflating airbags and noise from guns and explosives. The very small size makes it possible to measure inside even very small scale models - it can be fitted inside small scale models with minimal disturbance to the sound field. Also, it can measure the higher frequencies used in scale model testing.