Garching Old Tower - Physikalische Messsysteme Ltd

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Distributed data loggers for CAN bus, RS485, Ethernet - especially in harsh environments

The Old Meteorological Tower at Garching near Munich

Since the installation of the Old Nuclear Reactor, the Meteorological Institute of the LMU has operated a research center containing a 50 meter lattice tower. There, various meteorological parameters such as temperature, humidity, wind direction and strength, solar radiation, and rainfall, etc., are recorded.
Height profiles are calculated especially for temperature, humidity and wind, which requires a very high resolution of the measured values. To solve this problem, the decentralized RS422 measuring system SerDAQ was developed by Physikalische Meßsysteme in 1993, providing precise voltage and PT100 resistance measurement.
Due to structural changes such as the construction of the underground railway and the influx of institutions originally located in downtown Munich, e.g. the computer center, the institutions for computer science and engineering, it was decided to relocate the measuring tower.
Since 2007, construction has taken place at the New Meteorological Tower. Physikalische Messsysteme Ltd. have developed the distributed MeteoDAQ CAN bus system for this tower, which is based on the SerDAQ serial RS422 system.

Distributed Data Acquisition System SerDAQ

  • Measurement of temperature, humidity, wind speed, wind direction, radiation, rainfall, etc. at various heights up to 50 m

  • RS422 serial bus

  • "outdoor" operation since 1995 wihout any failure

  • Link to the website of the Meteorological Institute in Munich, with current readings


 
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