ACT LVDT Displacement Transducer

The ACT Series LVDT transducers are for displacement / position measurement. They make an accurate position measurement of the movement of the armature (the sliding part) relative to the body of the displacement transducer.

These transducer uses the Linear Variable Differential Transformer (LVDT) principle which means that it is probably the most robust and reliable position sensor type available. The strength of the LVDT sensor's principle is that there is no electrical contact across the transducer position sensing element which for the user of the sensor means clean data, infinite resolution and a very long life. This series of displacement transducer is available as either an unguided, captive or spring return version.

LVDT ACT Series

The captive guided displacement transducers have bearings to guide the armature inside the measurement sensor. Captive LVDTs are for position measurement applications where guidance may be poor and end bearings may be required.

The unguided LVDTs the armature assembly is a separate component, to make a measurement the user must guide the armature inside the body without touching the sides. Unguided position measurement transducers are appropriate where external guidance is available and give truly non-contact operation

The spring displacement transducer has bearings to guide the armature inside the measurement sensor and a spring which pushes the armature to the fully out position. Spring return LVDTs are appropriate where it is not possible to connect the transducer armature to the moving component being measured.

Available models

  • Available measurement range (captive core): ±12.5 mm, ±25 mm, ±50 mm, ±75 mm, ±100 mm, ±150 mm, ±200 mm, ±250 mm, ±375 mm and ±470 mm
  • Available measurement range (unguided core): ±12.5 mm, ±25 mm, ±50 mm, ±75 mm, ±100 mm, ±150 mm and ±200 mm
  • Available measurement range (spring return): ±12.5 mm, ±25 mm, ±50 mm and ±75 mm
  • Package: plain (20.6 mm diameter)
  • Connector: 5 pin Lumberg SV-50 (standard). Other models available under request.

Features

  • High accuracy
  • High cycle life
  • Infinite resolution
  • Stainless steel

Applications

  • General
  • Academic instrumentation