Length Transducer (LVDT) and Extensometer Calibration

Electrical length transducers and extensometers are used for measurement of deformations, displacements and extensions during mechanical testing of materials, in test laboratories and in long-term structural monitoring. Proper calibration is essential for reliable evaluation and for traceability to length standards.

Illustrative photo of an electrical length transducer
Electrical length transducer.

Metrological activities

  • Calibration of electrical length transducers in accordance with STN EN ISO 14978 and STN EN ISO 463.
  • Calibration of extensometers used in mechanical testing of materials according to STN EN ISO 9513.
  • Calibration of transducers with voltage, current and pulse output.
  • Calibration of various types of length transducers:
    • incremental length transducers (measuring scales, linear encoders)
    • resistive (potentiometric) length transducers
  • Up to 100 mm, calibration using a length calibrator; above 100 mm up to 650 mm, calibration using reference incremental length transducers.

Extensometer and LVDT calibration

  • We also calibrate inductive length transducers of the LVDT type.
  • In extensometer calibration we evaluate the accuracy class according to ISO 9513 (classes 0.2, 0.5, 1 and 2).

TSÚS documents

You can find the detailed scope in the TSÚS information sheet:

📄 Information sheet – Length transducers and extensometers (PDF)

Price: from 45 € excl. VAT

length transducers – calibration in the laboratory45 €
extensometers in testing machines150 €

Prices exclude VAT. Turnaround within 5 working days of receiving the instrument. Prices valid from 1 January 2026.

← Back to the list of instruments