Guided Radar (TDR) Level transmitters – Basics of Time Domain Reflectometry

(Available language: English, Deutsch)

TDR-based guided radar technology provides an accurate and reliable solution for both level measurement and interface measurement. It can be used in a variety of applications.
Module 1 starts with a brief historical overview, before getting to the development of radar systems. Then, the principle of TDR and its use for level measurement are explained. Afterwards, some of the typical challenges in level measurement are presented and it is shown how guided radar level transmitters deal with them. Finally, the advantages and limitations of this technology are summarised.
Module 2 goes into the practical considerations of using guided radar level transmitters including calibration, installation requirements, probe selection and application examples. The module begins by illustrating the calibration of guided radar level transmitters. Each instrument is calibrated to deliver the best possible results. To avoid problems due to difficult mounting conditions, a proper installation is crucial. Afterwards, the most important installation recommendations are presented before getting to sizing and construction. Finally, the last part gives a brief overview of the wide range of applications in which guided radar level transmitters can be used.

Module 1:
  • Historical background
  • Physical principle
  • Measurement challenges
Module 2:
  • Calibration
  • Installation recommendations
  • Sizing and construction
  • Applications and industries