Infrasound sensors

MB3a

The MB3a is an infrasound sensor developed by the CEA, following the MB2000 and MB2005 series, which allows the recording of very-low-frequency acoustic signals over a broad frequency band, with an excellent resolution and a large dynamic range.

The MB3 is remarkable for an extremely low level of instrumental noise (<-80 dB.Pa / √ Hz @ 1 Hz) allowing the sensor to resolve more than 10 dB the Low Noise Model. This sensor has been designed especially to meet the requirements of infrasound stations of the IMS network (International Monitoring System) installed as part of the CTBT (Comprehensive nuclear Test Ban Treaty).

Accessories

Cable
mb3a-mb3d-power-cable

MB3a/MB3d power cable

3 pin Fischer connector to fast on plug, 2 wires, 1.5 mm², Ø 9.3 mm

Standard length : 3 meters

 

signal-cable

Signal cable

18 pin Fischer connector to not wired, 18 wires AWG24 Ø 8.48 mm shielded.

Standard lenght : 3 meters

 

magnet-adjustment-cable

Magnet adjustment cable

18 pin Fischer connector to banana plugs designed to adjust the magnet position (multimeter required).

 

Tools
magnet-adjustment-cable

Magnet adjustment cable

18 pin Fischer connector to banana plugs designed to adjust the magnet position (multimeter required).

 

magnet-wrench

Magnet Wrench

Specific wrench designed to adjust the magnet position.

 

Packaging
screwpack

Screwpack

Plastic packaging for one Mb3a or Mb3d, protected into specific foams.
Not watertight, crush-proof and dust-proof, water, oil-projection and humidity resistant.

Weight : 0.4 Kg

carton-boxes

Carton box

Carton box specially designed for MB3a and MB3d transportation.

 

pelicase-1650-6-sensors

Pelicase 1650 (6 sensors)

Pelicase 1650 with adapted foam specificly designed to carry 6 MB3a and cables. Equipped with one telescopic handle and 2 wheels.

Dimensions : 724 x 441 x 267 mm

Weight : 13.47 Kg

pelicase-1430-1-2-sensors

Pelicase 1430 (1-2 sensors)

Pelicase 1430 with adapted foams available in 1 sensor or 2 sensors (MB3a or MB3d).

Dimensions : 345 x 146 x 297 mm

Weight :   2.59 Kg

Battery
battery-yuasa

Battery Yuasa

12V BATTERY

12Ah /12V Lead Acid
97.5 X 98 X 151 mm / 4kg
Quick Connect
Charge Current Max: 3A
Cyclic Charge Voltage
Max:15V

Datasheet : NP_SERIES_BROCHURE_NP12-12

Interconnection boxes
interconnection-boxes

Interconnection boxes

MB3d

MB3d sensors is the digital version of the MB3a. Recommended for short-term measurements, it encapsulates a low-noise 24 bit digitizer (ADC), with a calibration board, a time card and a storage capacity of 1 Go.

 

Accessories

Cable
mb3a-mb3d-power-cable

MB3a/MB3d power cable

3 pin Fischer connector to fast on plug, 2 wires, 1.5 mm², Ø 9.3 mm

Standard length : 3 meters

 

mb3d-serial-cable

MB3d serial cable

18 pin Fischer connector to DB9, connector 3 wires AWG24 shielded.

standard length : 3 meters

pc-usb-cable

PC/USB cable

18 pin Fischer connector to USB
4 wires AWG25 shielded.

Standard length : 1.5 or 3 meters

 

gps-cable

GPS cable

Coaxial TNC to TNC
KG58C/U 50 Ω PVC, Ø 4.93 mm shielded.

Standard length : 5 meters

magnet-adjustment-cable

Magnet adjustment cable

18 pin Fischer connector to banana plugs designed to adjust the magnet position (multimeter required).

 

Tools
rs232-to-ethernet-converter-for-mb3d

RS232 to Ethernet converter for MB3d

The RS232 to Ethernet converter allows remote retrieval of your MB3d miniSEED files through secure FTP access.

 

tnc-connector

GPS antenna PROCOM 2000B

Flat-pack GPS-antenna for fixed installations.
Full hemispherical coverage.
Built-in high gain, low noise amplifier.
Right-hand circular polarization (RHCP).
3 V or 5 V supply voltage.
DC supply via RF-connector.
EMC tested to IEC 801 and IEC 255.
Provided with TNC (female) connector.
ROHS compliant.

datasheet: gps-2000.en-GB

 

gps-cable

GPS cable

Coaxial TNC to TNC
KG58C/U 50 Ω PVC, Ø 4.93 mm shielded.

Standard length : 5 meters

tnc-male-to-tnc-male-right-angle-adapter

TNC Male to TNC Male Right Angle Adapter

Right angle adapter to connect directly the GPS antenna PROCOM 2000B to the MB3d, without cable.

magnet-adjustment-cable

Magnet adjustment cable

18 pin Fischer connector to banana plugs designed to adjust the magnet position (multimeter required).

 

magnet-wrench

Magnet Wrench

Specific wrench designed to adjust the magnet position.

 

Packaging
screwpack

Screwpack

Plastic packaging for one Mb3a or Mb3d, protected into specific foams.
Not watertight, crush-proof and dust-proof, water, oil-projection and humidity resistant.

Weight : 0.4 Kg

carton-boxes

Carton box

Carton box specially designed for MB3a and MB3d transportation.

 

pelicase-1650-6-sensors

Pelicase 1650 (6 sensors)

Pelicase 1650 with adapted foam specificly designed to carry 6 MB3a and cables. Equipped with one telescopic handle and 2 wheels.

Dimensions : 724 x 441 x 267 mm

Weight : 13.47 Kg

pelicase-1430-1-2-sensors

Pelicase 1430 (1-2 sensors)

Pelicase 1430 with adapted foams available in 1 sensor or 2 sensors (MB3a or MB3d).

Dimensions : 345 x 146 x 297 mm

Weight :   2.59 Kg

Battery
battery-yuasa

Battery Yuasa

12V BATTERY

12Ah /12V Lead Acid
97.5 X 98 X 151 mm / 4kg
Quick Connect
Charge Current Max: 3A
Cyclic Charge Voltage
Max:15V

Datasheet : NP_SERIES_BROCHURE_NP12-12