This paper presents an original program that provides remote control of the field analyzer EFA-300. The field analyzer EFA-300 is intended for measuring magnetic and electric fields in the workplace and in public spaces. The magnetic (B) or electric field (E) is measured over the entire frequency range up to 32 kHz in real time.
The program enables the monitoring of measured B or E-field in real time, transferring the stored data from the instrument to a computer, analysis and graphical presentation of measured data. The sample rate with a computer is five times grater than the achieved sample rate with the built-in instrument functions. Also, the program provides concurrent measuring of B or E-field in three orthogonal axes.
When the measurement of B or E-field is performed outdoors, the measured data are transferred to company server via GSM network. With the additional program, remote clients can also monitor measured data in real time via Internet.
The communication between computer and instrument is realized over serial interface RS-232. The program is entirely written in graphical programming language LabVIEW 8.6.