Positron Series AW — 22mm Body · ±1 to ±25 mm · Immersion Proof to 2 m

Key Specifications
Positron Series AW
The Series AW is a dedicated waterproof AC LVDT designed for applications where the coil assembly is exposed to frequent oil or water splashes, or must operate fully submerged. Rated to 2 metres of water column depth, it handles the harshest environments that standard LVDTs cannot tolerate.
Its annular space can be filled with oil to provide hydraulic damping of core rod movement — a key advantage in vibration-prone or shock-loaded test rigs. Built in a 22 mm stainless steel body with rugged stainless steel conductors, the AW series offers frictionless, infinite-life operation across 5 models from ±1 mm to ±25 mm.
Models
| Model | Full Stroke Range | Mechanical Stroke | Body Length (mm) | Sensitivity (mV/V/mm) | Linearity (% FSR) |
|---|---|---|---|---|---|
| 001AW | ±1 mm | ±3 mm | 28 | 100 mV/V/mm | ±0.3% |
| 002AW | ±2 mm | ±5 mm | 75 | 60 mV/V/mm | ±0.3% |
| 005AW | ±5 mm | ±8 mm | 93 | 40 mV/V/mm | ±0.3% |
| 010AW | ±10 mm | ±15 mm | 123 | 25 mV/V/mm | ±0.3% |
| 025AW | ±25 mm | ±30 mm | 185 | 10 mV/V/mm | ±0.3% |
No radial (R) variant for AW series. Custom stroke ranges available on request.
Use Cases
Measure piston and rod displacement in oil-flooded or high-splash hydraulic test environments where standard LVDTs cannot survive.
Position sensing in submerged or seawater-splash environments up to 2 m depth — suited for tidal gauges and underwater actuator feedback.
Monitor consolidation settlement and triaxial specimen deformation in water-saturated or fully submerged geotechnical setups.
Track actuator and conveyor positions in food processing, chemical plants, and other facilities subject to frequent wash-down cycles.
Oil-immersed deployment for small-stroke damper characterisation — the oil-fillable annular space provides additional hydraulic damping.
High-sensitivity gauging at up to 100 mV/V/mm (001AW) for ±1 to ±5 mm precision displacement tasks in laboratory or automated environments.
Resources
Series AW — Waterproof AC LVDT Datasheet
Complete specifications, dimensions, and ordering information (PDF)
Our sensor specialists will recommend the best LVDT for your application.
FAQ
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