Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Warburg diffusion element is a common diffusion circuit element that can be used to model semi-infinite linear diffusion, that is, unrestricted diffusion to a large planar electrode. A Warburg impedance element can be difficult to recognize because it is nearly always associate ...Täielik kirjeldus
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Warburg diffusion element is a common diffusion circuit element that can be used to model semi-infinite linear diffusion, that is, unrestricted diffusion to a large planar electrode. A Warburg impedance element can be difficult to recognize because it is nearly always associated with a charge-transfer resistance (see charge transfer complex) and a double layer capacitance (see double layer (interfacial)), but is common in many systems.The Warburg diffusion element (ZW) is a constant phase element (CPE), with a constant phase of 45º (phase independent of frequency) and with a magnitude inversely proportional to the square of the frequency by: {Z_W} = frac{A_W}{sqrt{omega}}+frac{A_W}{jsqrt{omega}} {|Z_W|} = sqrt{2}frac{A_W}{sqrt{omega}}