DEVELOPMENT OF DATA LOGGER FOR DATA ACQUISITION FROM FOUR CUP ANEMOMETERS

This paper describes a development of a synchronized data recording from cup anemometers. Data logger was developed for application in research and optimizing of windbreaks. Measuring equipment consist of 4 masts placed one data logger which records data from four analog anemometers. The anemometers measure wind speed and direction in different levels above the ground. Data logger controlled by microprocessor allows a data recording in a sample interval from 2 to 60 second during 12 hours. Retiming of clock generator, starting and stop time, and also data archiving is executed by computer program, which was developed for this purpose. The program makes possible also calibration of sensors (anemometers), and on-line measuring with the anemometers. PC and data loggers are connected by USB interface.