Light Weight Deflectometer (LWD) Calibration
Lightweight dynamic plates are used to determine bearing capacity and compaction of pavement layers, backfills and subgrade in civil engineering works. A properly calibrated device is key for reliable assessment of compaction quality and thus for the service life and safety of transport and other structures.
Metrological activities for lightweight dynamic plates
- Calibration of lightweight dynamic plates for pavement and subgrade testing according to STN 73 6192.
- Calibration on a reinforced-concrete pile with minimal dynamic response, ensuring stable measurement conditions.
- Check of the force impulse characteristics when a 10 kg hammer impacts a 300 mm diameter test plate.
- Measurement and assessment of the maximum achieved force and the force application time under impact loading.
- Calibration of the measured settlement of an elastic foundation under an impact force impulse.
- For recording time histories of force and deformation, we use a reference force gauge and reference incremental length transducers with ensured traceability.
Which dynamic plates we calibrate
We calibrate commonly used types of light weight deflectometers (LWD) from manufacturers ZBA/ECM, ZFG, Zorn, Terratest and others.
Customers from abroad
A significant share of our customers for light weight deflectometer calibration come from abroad. We can therefore flexibly adjust the date of delivery of the device to our laboratory, the calibration itself and the handover of the instrument back to the customer. Do not hesitate to contact us.
TSÚS documents
You can find the detailed scope of calibration in the TSÚS information sheet:
📄 Information sheet – Lightweight dynamic plates (PDF)Price: 350 € excl. VAT
| light weight deflectometers | 350 € |
Prices exclude VAT. Turnaround within 5 working days of receiving the instrument. Prices valid from 1 January 2026.