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The radiated immunity test of an astable multivibrator in the frequency range from 100 MHz to 300 MHz
Opis
The dataset presents a result of measurements that are a part of electromagnetic field immunity tests. The radiated, radio frequency, immunity tests were carried out for a typical astable electronic multivibrator. Tests of immunity of electronic systems to radiated radio frequency (RF) disturbances in the frequency range from 100 MHz to 300 MHz were performed with measurement set up under the requirements specified in the electromagnetic compatibility (EMC) standards. The measurements were executed at a normative field strength of 10 V/m. The signal generator provided three types of RF signals: an unmodulated signal, an 80% AM modulated signal with a modulating frequency of 200 Hz, and a 200 Hz pulse modulated signal.
In laboratory conditions, the electromagnetic fields were simulated in the GTEM (Gigahertz Transverse Electromagnetic) cell (Fig. 1). An integrated signal generator, equipped with a built-in 45 W class A power amplifier module, was used in the measurement setup. The tested multivibrator was supplied from a battery of 9 V. The signal cable connected to the input of an oscilloscope was led out of the tested PCB. The measurement process was controlled by the WIN 6000 software installed on a personal computer connected to the signal generator via the IEEE488 interface.
A typical astable multivibrator was equipment under test (EUT) in the immunity measurements. The proper operation of the device is indicated by flashing LEDs with variable frequency. The system sensitivity to the radiated field in the GTEM cell was assessed based on the observation of the differences in the shape between the signal waveform controlling diode switching and the reference waveform recorded with the signal generator turned off.
Analyzing the results of standard immunity tests presented in [Ławniczak, P., & Pałczyńska, B. (2021). The standard radiated immunity test of an astable multivibrator at normative field strengths [Data set]. Gdańsk University of Technology. https://doi.org/10.34808/1w2q-xp19], the frequency range from 100 MHz to 300 MHz was selected, in which the shape of the signal waveform from the PCB of the EUT differs most from the reference waveform. The immunity test procedure was carried out in the frequency range starting at 100 MHz and incrementing in 1% steps up to at least 300 MHz. The position of the EUT in the uniform area of the GTEM cell was changed for three orthogonal orientations x, y, z.
The attached files contain oscillograms showing the voltage waveforms recorded from the PCB. For each case, information about the RF frequency of the signal generator is included in the file description.
Figure 1. Configuration of the measuring system for testing the immunity of electronic systems
in the GTEM cell
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Informacje szczegółowe o pliku
- Licencja:
-
otwiera się w nowej karcie
CC BYUznanie autorstwa
Informacje szczegółowe
- Rok publikacji:
- 2021
- Data zatwierdzenia:
- 2021-06-28
- Data wytworzenia:
- 2016
- Język danych badawczych:
- angielski
- Dyscypliny:
-
- Automatyka, elektronika i elektrotechnika (Dziedzina nauk inżynieryjno-technicznych)
- DOI:
- Identyfikator DOI 10.34808/agrj-c590 otwiera się w nowej karcie
- Seria:
- Weryfikacja:
- Politechnika Gdańska
Słowa kluczowe
- electromagnetic field
- immunity test
- astable electronic multivibrator
- GTEM cell
- EMC
- radio frequency disturbances
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- dane badawcze The standard radiated immunity test of an astable multivibrator at a normative field strength
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