guideline,about,radio,control, entertainment A guideline about radio control helicopter capacitors
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Normal 0 7.8 Å 0 2 false false false EN-US ZH-CN X-NONE /* Style Definitions */ table.MsoNormalTable{mso-style-name:nh<;mso-tstyle-rowband-size:0;mso-tstyle-colband-size:0;mso-style-noshow:yes;mso-style-priority:99;mso-style-qformat:yes;mso-style-parent:"";mso-padding-alt:0cm 5.4pt 0cm 5.4pt;mso-para-margin-top:0cm;mso-para-margin-right:0cm;mso-para-margin-bottom:10.0pt;mso-para-margin-left:0cm;line-height:115%;mso-pagination:widow-orphan;font-size:10.5pt;mso-bidi-font-size:11.0pt;font-family:"Calibri","sans-serif";mso-ascii-font-family:Calibri;mso-ascii-theme-font:minor-latin;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-font-kerning:1.0pt;}There are many capacitors that determine the radio andcircuits of every radio control helicopter. The electrolyte is an importantone. This type of capacitor is fixed polarity, i.e. only works correctly whenan external voltage applied to the positive terminal that is attached to thecover sheet of aluminum oxide and the negative to the other. Tolerances rangefrom 10% (up 330UF capacitors) and 20% for higher capacities.Its main application is related to the filtering ACcomponents in power supplies, and low-frequency filters. If you submit an electrolyticcapacitor to a voltage, it will be substantially greater than thatcorresponding to their type, it can explode. This is because the electrolytechanges from liquid to gas, and pressure inside the container holding the armorincreases significantly, causing the destruction of the component.Tantalum CapacitorsA variation on the previous model is the radio controlhelicopter tantalum capacitor, where the aluminum sheets are replaced by sheetsof that metal. It uses a dry electrolyte, and is distinguished by a very lowelectrical noise.Polyester capacitors are widely used, since among itsmost important characteristics are high resistance insulation allows you tokeep the load for long periods of time, a small volume and an excellentperformance against moisture and temperature variations. Additionally, theproperty allows self-healing in case of excessive tension on the drill, the metalis vaporized in a small area around the hole avoiding short, allowing it tocontinue operating.The materials used are: polystyrene, polyester,polycarbonate and Teflon. They are manufactured in the form of coils or multi layers.They are manufactured from 1nF to 100uF capacities and voltages from 25V to4000V. They are distinguished by their bright colors, usually red, yellow orblue. You can ask at rc hobby forums or browse online, too. Capacitors in parallelIf we connect each radio control helicopter capacitorin parallel, the total capacity is equal to the sum of individual capacities.This is quite intuitive to understand, since in this configuration the totalsize of reinforcement encountered is the sum of the sizes of the opposingarmor.Variable CapacitorsFinally, there are radio control helicopter capacitorswith variable capacitance, usually constructed of aluminum, with a dielectricwhich is usually air, but also use mica or plastic. Structurally armor consistsof two parallel plates made of metal that are inserted into each other whenacted upon a shaft. This produces a change in the surface of the armor that areopposite, and thus the capacitance change. Are used for example to vary thefrequency at which a radio works amplitude modulation.
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