LVDT Displacement Sensor

Overview

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.

 

FEATURES:

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

 

APPLICATIONS:

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

 


 

DIMENSIONS:

Specifications

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)

Options & Accessories

Intelliducer Connector: Required for use with STS Intelliducer Nodes, cable is connected and potted for a weatherproof seal.
Adjustable Mounting Bracket: Two-part machined aluminum, angle adjustable mounting bracket. Works with the tripod (MNT-TP-01).
Nylon Mount: Glass-filled nylon mounting bracket. Minimum of two required per LVDT.
Tripod: Camera-style adjustable tripod.