MX3D UW - to the demands of precise data acquisition in underwater applications


The SENSYS multi-channel system is an ROV based magnetometer survey system to allocate and track objects and structures underwater.


Sensor Technology:
Application Type:
UXO Search, Geophysics and Geology, Offshore



The submersible measurement system is equipped with high-resolution three axis Fluxgate sensors FGM3D UW, sampled with up to of 2,000 Hz. The sensor data is digitized with 24 Bit by the MXLAN box. This unit can be connected to a DGPS and allows for a data output via TCP/IP.

Having a scalable structure, the system can be easily integrated in existing infrastructures such as vessels, ROVs or ROTVs due to its default data transfer protocol. Thus is can be used with various software solutions such as QINSy, NaviScan and Hypack.

The MX3D UW corresponds not only to the demands of precise data acquisition in underwater applications, but is also highly compatible and can be easily integrated into existing systems.

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Technical Data MX3D UW
SensorsFGM3D/100 UW II
Measurement Range±100,000 nT (others available upon request)
Noise<15 pTrms/√ Hz @ f = 1 Hz
Bandwidth2,000 Hz standard, 4,000 Hz upon request
Length263 mm
Diameter45 mm
Power Supply±12….±15 V
Current Consumption± 26 mA
Cable Length to MX3D UW0.5 to 100 m
Weight (Air/Water/Salt Water)444 g/188 g/182 g
Data AcquisitionMX3D UW DAU
Number of Sensors1 to 5 units per digitizer, cascadable
Number AUX Sensors2 (serial, GPS, altimeter, AHRS, etc.)
Sampling Range200 Hz to 10,000 Hz (others available upon request)
Resolution (ADC)24 bit
Input15x analogue channel, 1x RS232
Output10/100 mBits/s, full duplex
Start-up current2.5 A (restricted)
Power Supply10…32 VDC
Current consumption
(at 200 Hz sampling rate)
max. 10 W (including 5 sensors)
Ethernet Cable Lengthmax. 100 m (min. Cat6), extendible via DSL modem
Bandwidth requirementsapprox. 750 kbit/s (5 sensors, 1,000 Hz sampling rate)
ConnectorsSensors: Subconn MCBH8F, Voltage/LAN: DBH13M
DimensionsDiameter: 98 mm, Length (w/o connector): 324 mm,
Volume: 1,694 Liters
Weight (Air/Water/Salt Water)2,949.4 g /1,250 g/1,210 g
Options of Integrations
Sensor Position towards Carrier SystemVariable, minimum distance depending on carrier system
Integration of SensorsVariable adjustment
Distance of SensorsVariable, typical ≤ 0.5 m

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