How to measure electromagnetic radiation

Abstract

The invention discloses an electromagnetic wave measuring method. The electromagnetic wave measuring method is achieved through the following steps of (1) immersing two same metal bodies into a nonmetal container containing water with the electrical conductivity being from 100 to 1000 micro siemens per centimeter; (2) respectively connecting the two metal bodies through two leads and enabling the leads to extend and expose out of the water surface; (3) connecting a resistor, a voltage meter which is in parallel connection with the resistor and two leads to form into a loop with the two metal bodies serving as two electrodes; shielding one metal body through a shielding box under the condition of having an electromagnetic wave radiation source, wherein voltage can be read from the voltage meter and a voltage numerical value and the electromagnetic radiation intensity of the unshielded metal body are in a direct proportion. According to the electromagnetic wave measuring method, the resistor forms into the loop and accordingly tiny currents are amplified to be measurable voltage with a large value, the intensity of electromagnetic waves radiating to the metal surfaces can be known by measuring the voltage value, and an electromagnetic radiation measuring sensor which is low in cost, simple and accurate in measuring is provided.

Description

technical field [0001] The invention relates to a method for measuring electromagnetic radiation, and belongs to the technical field of simple measurement of electromagnetic radiation. Background technique [0002] Various electrical equipment using radio waves represented by mobile phones has become a sign that our era is different from other eras. With that comes concerns about the effects of electromagnetic radiation on human health: How much radiation is there around me? The traditional measurement sensor has a complex structure and high production requirements, so it is expensive. For example, Chinese patents CN102375096A and CN102375094A disclose a kind of electromagnetic radiation measuring device. Its structure and principle are extremely complicated. At the same time, there are requirements for measuring the frequency of electromagnetic radiation. It is necessary to amplify the electromagnetic wave through a high-frequency signal amplifier for measurement, which is...

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Problems solved by technology

Another example is the Chinese patent CN102346220, which uses a three-stage capacitor to amplify electromagnetic waves, resulting in large errors in measurement results and complicated circuit structures.

Chinese patent CN102967773A has a simple structure and is suitable for daily life, especially the measurement of electromagnetic radiation of household appliances, but does not disclose its basic principle

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