Synapse Horizontal Transverse Gradiometer

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The Synapse Horizontal Transverse Gradiometer comes with:

Synapse Horizontal Transverse Gradiometer Includes

Synapse Nodes
  • Scalar Magnetometer sensor
  • Network Status LED
  • Leak Detector
  • Optional: Integrated support sensors
Gradiometer Frame
  • Lightweight anodized aluminum streamlined frame
  • Self-righting keel and float
  • Optional: Heavier frame available for surface-towed applications

Additional Components

  • Isolation Transceiver
  • Side Scan Integration + Interface cables
  • Y-split tow cable (with Integrated transceiver for AUVs)
  • AUV tow cable
  • Custom reusable shipping case


Support Sensors
  • Altimeter (optional): Narrow beam 200 kHz, 0.01 m resolution, 100 m range
  • Tilt IMU (optional): Full Euler-angle attitude solution, 0.01° resolution (pitch, roll, yaw)
  • Pressure/Depth sensor (optional)
Operating Zones Worldwide.
Absolute Accuracy TBD
Sensor Sensitivity 10 pT/rt-Hz
Resolution 1 pT
Dead Zone 1 Zone (+\- 6 degrees from center) Sensor can be easily rotated for worldwide operation
Sampling Rate Up to 20hz
Sensor Type Scalar (Rubidium optically-pumped)
Power Consumption 4.5 W per node
Range 18,000 nT to 120,000 nT
Gradient Tolerance Over 10,000 nT/m
Interface USB or RS232
Power Supply 24 VDC (120-240 VAC compatible) (Acceptable range 9-30 VDC)
Length 86 cm (33.75 in) 94 cm (37 in) with altimeter
Diameter 7.6 cm (3 in)
Weight in Air 3.5 kg (7.7 lbs) 4.7 kg (10.4 lbs) with altimeter
Weight in Water Neutral
Depth Rating 1000 m (1420 psi)
Gradiometer Self-righting Frame
Span 1.5m (59 in)
Height 65 cm (26 in)
Weight in Air 12.4 kg (27.3 lbs)
Weight in Water Neutral
Depth Rating 300 m (426 psi)
Y-Split Tow Cable
Length 4.2 m (13.8 ft), Customizable
Weight in Air 1.4 kg (3.1 lbs)
Weight in Water Neutral
Side Scan Sonar Integration Cable
Length 5.2 m (17.1 ft), Customizable
Power Consumption 9-40VDC
Weight in Air 4.5 kg (9.9 lbs)
Weight in Water 0.15 kg (0.3 lbs) Total weight including sidescan mechanical tow point: 3.0 kg (6.6 lbs) in fresh water

Side Scan Integration

Integrations for SeaSPY2, SeaQuest2, Explorer and Synapse.

AUV Towed Integration

Using high sensitivity technology for unmatched accuracy, low noise and power, our products are ideal to integrate with AUVs.