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Operating range: |
20,000 to 100,000 nT |
Sensitivity: |
<0,004 nT/√π Hz RMS |
Number of measurements: |
up to 40 Hz in 100 ms increments |
Rate error: |
<0.25 nT (throughout 360⁰ revolution) |
Mechanical data: |
weight 70 kg, sensor spacing 1.5m |
Cable: Kevlar reinforced, breaking force 3600 lbs, length 60 m | |
Operating temperature: |
-35⁰C to +50⁰C |
Storage temperature: |
-45⁰C to +70⁰C |
Operating altitude: |
up to 9,000 m |
Operational draught: |
up to 2,700 m depth (4,000 psi) |
Power supply: |
115/220 VAC, 60W on start-up, 40W in continued operation |
Operating depth range: |
5 – 400 m |
Recommended towing speed: |
4 – 6 kt |
Immersion speed: |
0 – 2 m/s |
Ascent speed: |
0 – 2 m/s |
Vertical position accuracy: |
0,2 m |
Tilt accuracy: |
0,5 ° |
Maximum inclination in “follow the bottom” mode (fixed distance from the bottom): |
20 ° |
Consists of four G-882 magnetometers attached by cable to the rigid frame of a remote-controlled ScanFish III Katria underwater device. The entire measurement set is towed behind the unit at a distance of over 30 m and at a constant distance from the bottom. Due to its length of 5 m it is not used to collect measurements in tight and shallow waters.
Operating depth range: |
5 – 400 m |
Recommended towing speed: |
4 – 6 kt |
Immersion speed: |
0 – 2 m/s |
Ascent speed: |
0 – 2 m/s |
Distance between magnetometers: |
1,5 m |
Consists of two G-882 caesium magnetometers mounted to a rigid non-ferromagnetic frame.
Possibility of immersion: |
up to 4 m |
Distance between magnetometers: |
1,5 m |
Consists of two caesium magnetometers attached to a rigid non-ferromagnetic frame (1.5 m spacing), placed in an elevator on buoyancy floats. Locating the magnetometers on a platform that stays afloat allows ferromagnetic measurements to be taken in shallow areas, often at the quay and between port infrastructure, where it is difficult or impossible to use towed systems due to lack of space.
Working range: |
20,000 nT to 100,000 nT |
Noise: |
<0,008 nT |
Temperature drift: |
<0,05 nT/ᵒC |
Maximum sampling rate: |
10 Hz |
Rate error: |
<1,5 nT |
Operating range: |
18,000 to 95,000 nT |
Sensitivity: |
0.05 nT per 0.1 s cycle 0.03 nT per cycle 0.2 s 0.02 nT per 0.5 s cycle 0.01 nT per cycle 1.0 s |
Number of measurements: |
up to 10 Hz |
Rate error: |
<0,5 nT |
Mechanical data: |
weight 2 kg |
Operating temperature: |
-15⁰C to +50⁰C |
Storage temperature: |
-35⁰C to +60⁰C |
Operating immersion: |
up to 0.3 m |
Power supply: |
12 to 34 VDC, 1 A at start-up, 600 mA in continued operation |
Maximum background value: |
±75,000 nT |
Measuring range: |
±8,000 nT |
Declination: |
±5 nT |
Resolution: |
<0.2nT |
Stability: |
<1nT |
Linearity: |
<0.1% |
Distance between magnetometers: |
650 mm |
Measurements can be taken in two variants:
Type: |
FGM650/3 Fluxgate |
Operating range: |
±8,000 nT |
Number and orientation of sensors: |
2, parallel, vertical |
Number of measurements: |
up to 200 Hz |
Sensitivity: |
<0,2 nT |
Type: |
FGM3D/75 Fluxgate |
Operating range: |
±75,000 nT |
Number and orientation of sensors: |
2, parallel, horizontal |
Number of axes: |
3 |
Number of measurements: |
up to 200 Hz |
Software: |
Oasis Montaj
Magdrone Datatool Sensys MagMap Trimble Business Centre |
Length: |
960 mm |
Diameter: |
62 mm |
Weight: |
1,5 kg |
Operating time: |
approx. 6 h |
Magnetic anomaly detection range: |
several meters depending on the strength of the magnetic field |
The magnetometer features a low weight. It is robust and compact. It has three search levels: dynamic (low location sensitivity), quasi-static (medium), static (high location sensitivity).
Sensors: |
FGM3D/100 UW II |
Measurement range: |
±100 000 nT |
Length: |
263 mm |
Weight (air/water/salt water): |
2 949,4 g /1 250 g /1 210 g |
Frequency: |
up to 2000 Hz |
Standard measurement range: |
±100 µT at 2 kHz bandwidth |
Noise: |
<15 pTrms/√ Hz @ f = 1 Hz |