AMTI Model SF3 Submersible 6-Axis Force & Torque Transducer
The AMTI Model SF3 Submersible 6-Axis Force & Torque Transducer is a specialised strain gauge sensor engineered specifically to measure forces and moments concurrently in underwater environments. Serving as the waterproofed variant of AMTI’s popular MC3A series, the SF3 resolves multi-directional forces that shift amplitude over time under high hydrostatic pressures. It is the premier choice across the UK for marine technology research, ocean engineering test towing tanks, underwater robotic arm validation, subsea structure model profiling, and offshore energy test rigs.
Manufactured with a compact, ultra-rigid 3-inch (76.2mm) cubed body from heat-treated stainless steel, the SF3 is fully hermetically sealed to an IP68 protection class. To endure underwater pressure gradients without signal shifting or casing deformation, the transducer's internal cavity is completely filled with high-grade mineral oil. This configuration incorporates a proprietary internal pressure compensation bladder that continuously reacts to higher and lower external fluid density shifts, establishing a permanent zero-pressure difference across the internal strain gauge matrix. As a result, the sensor is formally rated for complete submersion in fresh water at depths of up to 70 metres for one continuous week.
Available Downloads:
- Full six-axis, force and torque measurement
- Available in 4 standard models from 100 lbf up to 1,000 lbf (445 N to 4,445 N Fz)
- Integrated pressure-equalizing bladder permits error-free operation down to 70m submersion limits
- Internal pressure compensation
- Machined with identical top-surface threaded inserts and through-holes in its bottom surface to simplify subsea mounting
Equipment that can be used with the AMTI SF3 are:
- Waterproof 9-meter cable with connectors to load cell and Gen5 amplifier
- AMTI Gen 5 digital signal amplifier.
As a standard, the AMTI SF3 comes with:
- SF3 six-axis load cell
- NIST traceable calibration certificate
- 6 x 6 calibration matrix.
Why choose Interface Sensor Products?
Interface is an internationally recognised brand and decades of experience have gone into making Interface manufactured load cells the benchmark for thousands of users around the world.
Interface product reliability is second to none and all our product lines have to match this standard before we would consider recommending them to our customers.
Our customer list is a "Who's Who" of household names ranging from the Aerospace Giants through to the most prestigious Universities. This speaks volumes about our reputation for quality solutions on projects of all sizes around the world.