מרידיאנים: ערוצי האנרגיה בגוף

מרידיאנים: ערוצי האנרגיה בגוף

מושג בתורות המזרח הרחוק

MATERIAL Sample

Conductivimetro the conductivimetro is a device designed to measure a feature of all materials which is the CONDUCTIVITY. The conductivity is measured in Siemens * m2/m, or what is the same thing Sm * m. Siemens unit is a, the cross-sectional area of the conductor, about the length of the conductor (a conductor more thickness leads more and one longer less). In a nutshell the conductivity says so easy through the electricity to that material. The conductivity can be measured directly or reverse.In a direct way, it observes how much current flows for given voltage difference between the ends of the sample. Indirectly, is observed how much potential difference is generated by a particular current, i.e. that the resistivity, which is the inverse of conductivity is actually measured. The resistivity is measured in Ohm * m/m2 (or their multiples and submultiplos, of course).The relationship between conductivity and resistivity is the inverse, that is 1uSm (1 microsiemens = 10 – 6) = 1MOhm(1megaohm=106).

Unlike the voltage and current, the conductivity is a MATERIAL, not a circuit physics property. I.e. a cable, or a piece of metal, or an espadrille, have a determinable conductivity, and that does not depend on the circuit in which they are tucked. Therefore, conductivity is not measured in parallel or in series, but it is not measured in a sample of material, regardless of the mode is being measured. If you want to know the conductivity of a particular material, you can do NT with two polymers, one in volt meter mode and the other in meter mode. You place the ammeter in series with the sample inside a DC circuit.

Then you put the voltmeter in parallel with the sample.V = I * R as ohm's law.Alli get Ry conductivity (llamemosle C, not to be confused with capacity) C = 1/RTienes the conductivity of your sample. It should be noted that the conductivity is not always a linear function. There are materials that begin to lead over certain voltage applied to them, or that lead to different rates of agreement to them. Also capacity is greatly affected by temperature.