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Noise meeter5/1/2023 Jack connector. It is generally located on the side, it is a kind of outlet whose function is to be connected to an oscilloscope the latter is a tool that allows electronic visualizations expressed in graphs.Reading unit. It is where the mediations taken in real time are recorded. They can be LED screens, digital screens or vumeters (it is a device present in audio equipment, where the signal level expressed in volume units is indicated also known as a volume indicator).Circuit. Through this, any signal that is emitted is processed.Microphone. By means of this, the sound pressure variations are converted into variations that are equivalent to electrical signals. They all generally have a frequency response of 8 Hz (Hertz) to 22 kHz (kHz stands for Hertz or Hertz, which is the unit of frequency according to the international system of units). Regardless of the type of noise meter that is studied, all basically have the following parts: There is another type of noise meter that does not fall within this classification because it is a derivative of the sound level meter this is the dosimeter, which offers a sound pressure level (which is the function performed by the sound level meter) taking into account the exposure time. The dosimeter is generally used to calculate the hazards of loud sound exposure as a percentage of the maximum time allowed in an 8-hour workday. Class 3 sound level meter. It is considered that this is the one with the lowest precision since through it it is possible to obtain approximate measurements, therefore, it is usually used only to carry out surveys.With this type of meter, general measurements are carried out in field work. Class 1 sound level meter. Through this it is possible to carry out field work with precision and in a meticulous way.Class 0 sound level meter. They are used only within laboratories to obtain reference levels.
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