LVDT – Linear Variable Differential Transformer

LVDT – Linear Variable Differential Transformer

The Linear Variable Differential Transformer (LVDT) displacement transducer accurately measures the movement between the spring-loaded sliding armature and the exterior body. These rugged and self-contained units are ideal for recording displacements on structural members due to live loads and temperature variations.

With years of experience using these transducers on bridges, building and hydraulic structures they are the gold standard when it comes to very accurate position measurements.

Request a Quote
Features, Applications, & Dimensions
Specifications
Downloads
Options & Accessories

FEATURES

  • 6 to 18 Vdc input range
  • Stainless steel construction
  • Spring return armature
  • High cycle life
  • High accuracy
  • < 0.0001” resolution

APPLICATIONS

  • Bridge deflection
  • Expansion joint movement
  • Concrete crack monitoring
  • Moveable structure testing
  • Tainter gate differential movement
  • Lift bridge movement
  • Laboratory testing

DIMENSIONS

specifications – LVDT

MODEL LVDT-01-005 LVDT-01-010 LVDT-01-020 LVDT-01-030
Range  ±0.5 in ( ±12.5 mm)  ±1.0 in ( ±25 mm)  ±2.0 in ( ±50 mm)  ±3.0 in ( ±75 mm)
Linearity Error (% F.S.)1 < ±0.5 < ±0.5 < ±0.5 < ±0.5
Length (shaft centered) 8.7 in (221 mm) 10.8 in (274 mm) 15.8 in (401 mm) 21.7 in (551 mm)
Supply Voltage +6.0 to +18 Vdc
Output  ±2.2 Vdc
Temperature coefficient (span)  ±0.017% F.S./°F ( ±0.0306% F.S./°C) (typical)
Operating temperature range -40° to +158 °F  (-40° to +80 °C)


1
Lower linearity error version available upon request.

downloads

Options & Accessories – LVDT