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Teaching measurements means educating in making experiments. Unfortunately the human body is not equipped with the tools to sense electromagnetic quantities (in a wide range of frequencies) therefore students in physics, electronics and telecommunications engineering, have to rapidly become familiar with an entirely new world of probes, sensors and measuring instruments. Students have to learn how...
The use of Bayesian inference for conformity assessment purposes is illustrated. Measurement uncertainty is taken into account. Two applications are discussed in detail: the assessment of conformity of a series production by using the 80%/80% criterion adopted by several product standards in the sector of electromagnetic compatibility (EMC) and the assessment of the uniformity of the field strength...
In recent years (since 2012, through 2014) two proficiency tests on radiated emission measurements were performed in Italy. The first one was devoted to radiated emission measurements in the frequency range between 200 MHz and 3 GHz in fully-anechoic rooms. A rather complete description of the significant technical aspects of this first experience is in [1]. The second one was devoted to radiated...
The shielding effectiveness of the coaxial transmission lines is currently quantified in terms of transfer impedance, a lumped-element concept. Its measurement is based on two methods, the more recent of which, the line injection method, is intended to extend the technique to higher frequencies. In doing so, wave propagation effects are introduced which produce potential distortion of the quantity...
An accurately known reference field is often the reference quantity in round-robin comparisons of electromagnetic field measurements. The limits of accuracy inherent to the definition and measurement of a reference electromagnetic field are here discussed and quantified in the case of measurements at 3 m distance from the field source and in the 30-300 MHz frequency range. The insertion loss between...
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