Positron Series AU — 8.0mm Body · ±1 to ±10 mm · Dial Gauge Replacement
Key Specifications
Positron Series AU
The Series AU is the slimmest LVDT in the Positron range — just 8.0 mm in diameter. Designed specifically for severely constricted spaces where even the 9.5 mm Slimline AM series cannot fit, it brings precision displacement measurement into the tightest fixtures, jigs, and instruments.
With a threaded M2.5 stainless steel core rod and two nuts supplied, the AU series attaches directly to moving parts without additional adaptors. At 150 mV/V/mm sensitivity on the 001AU model, it is a direct electronic replacement for mechanical dial gauges — offering infinite life, frictionless operation, and automated data capture.
Models
| Model | Full Stroke Range | Mechanical Stroke | Body Length (mm) | Sensitivity (mV/V/mm) | Linearity (% FSR) |
|---|---|---|---|---|---|
| 001AU | ±1 mm (0–2 mm) | ±3 mm | 25 | 150 mV/V/mm | ±0.3% |
| 002.5AU | ±2.5 mm (0–5 mm) | ±7 mm | 30 | 60 mV/V/mm | ±0.3% |
| 005AU | ±5 mm (0–10 mm) | ±12 mm | 50 | 30 mV/V/mm | ±0.4% |
| 010AU | ±10 mm (0–20 mm) | ±22 mm | 75 | 15 mV/V/mm | ±0.4% |
Core rod supplied free (not spring-loaded). Two M2.5 nuts included. Unipolar range configurable via signal conditioner (e.g., 005AU usable as 0–10 mm). Custom ranges on request.
Use Cases
Drop-in electronic replacement for mechanical dial gauges — infinite operating life, frictionless operation, and direct data capture without manual reading.
Purpose-built for fixtures, jigs, and test rigs where 9.5 mm or larger sensors physically cannot fit. At 8.0 mm, it accesses the tightest locations.
Measure small component displacement in precision gauging fixtures for bearings, seals, micro-components, and intricate mechanical assemblies.
Position sensing inside compact medical devices and scientific instruments where space constraints and measurement accuracy are equally critical.
Track roller positions, tension arm movement, and fine-pitch mechanisms in weaving machines and electronic assembly equipment.
High-sensitivity ±1 to ±5 mm measurement at up to 150 mV/V/mm for dimensional inspection, quality control, and automated gauging stations.
Resources
Series AU — Ultra Thin 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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