Prenart TDR (Time Domain Reflectometry) Systems
Sampling equipment for soil and groundwater investigations

The PRENART TDR SYSTEMS are ideal for in situ measurement of volumetric water content of soils.

The TDR measurements are carried out with the new TDR100 instrument made by Campbell Scientific Inc., USA, combined with a handheld PC. The data acquisition and analysis programme AutoTDR has been developed specifically for the rugged handheld Allegro field PC. However, the AutoTDR programme will also run on other IBM compatible PCs. The TDR system has been developed in collaboration with The Danish Institute of Plant and Soil Science, where it has been used extensively for several years.

The PRENART TURNKEY TDR-system is a complete TDR system including a compact portable TDR instrument, a handheld computer and probes. The system has been developed for both for the inexperienced and experienced users of TDR. The beginner will appreciate the easy-to-use software that takes care of data analysis and storage. The experienced user will appreciate the flexibility of the AutoTDR software.

The complete system includes the new compact TDR100 instrument from Campbell Scientific Inc., USA, combined with the rugged waterproof handheld Allegro field PC from Juniper Systems running the AutoTDR software and five sets of measuring probes including the lengths 20cm, 50cm and 90cm. The TDR100 instrument is carried in a convenient hipsack. Using the Allegro field PC only one to two minutes is required for making measurements on each probe set.

An important advantage of the portable TDR system is the possibility of including a large number of inexpensive measuring probes at sites with heterogeneous soil conditions.

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