Seismo Wave has developed a new version of the MB3a analog infrasound
sensor in order to record high amplitude atmospheric events.
The MB3aPP has two pressure outputs, which are respectively set at 2mV/Pa and 20mV/Pa.
This configuration greatly increases the dynamic range of the sensor by going from +/- 1,200 Pa to +/- 10,550 Pa.
MB3aPP makes it possible to measure high intensity atmospheric events at a distance closer to the infrasound emission zone.
|Signal Characteristics||Theoretical response (amplitude ± 5%, phase ± 5%)|
|Full Scale Range||Output P (Pa): ±min (12,000 [Pa/s]/2.π.f[Hz] ; 1,200[Pa])|
|Output Type||Differential. Output dP: ±12,000 (Pa/s)|
|Max Output||24 V pp|
|Idle Output||12 V DC (7-20 V) - 120 mW|
|Frequency Response||Flat to within =-3dB from .03Hz to 245Hz or wider band Band limited|
|Self Noise||0.13 mPa/√Hz @ 1 Hz < 10 dB under LNM|
|Dynamic Range||117 dB @ f< 1,6 Hz / 109 dB @ f= 4 Hz|
|Short Circuit Protection||OK|
|DC Output Range||12 V DC (7-20 V) - 120 mW|
|Physical Characteristics||4.3 inch (110 mm) diameter / 5.5 inch (140 mm) tall|
|Operating Temperature||-20 ~ +50C (-30 ~ +70C Housing)|