How to measure electromagnetic radiation
A measurement method, electromagnetic wave technology, applied in the direction of electromagnetic field characteristics, etc., can solve the problems of undisclosed basic principles, large errors in measurement results, complex circuit structures, etc., and achieve the effect of wide versatility, wide applicability, and simple calculation
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[0025] Example
[0026] Put a nickel wire with a diameter of 0.8 mm and a length of 500 cm into a circular spider web shape and place it in 200 ml of water with a conductivity of 195 μS / cm. Connect the two with a 190 ohm resistor. One is sandwiched between two copper plates for shielding. Then, the distance between the electromagnetic wave radiation source (a connected home mobile phone) and the unshielded "cobweb" is controlled, and the voltage value on the resistor is measured. figure 2 It is the relationship between different distances and the measured voltage value. The voltage value and the electromagnetic wave intensity have a linear relationship, that is, proportional.
[0027] In the same experiment using metallic tin and metallic gold, the linear relationship between voltage and electromagnetic wave intensity was also measured.
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