Thermal Noise

Each effective capacitance has associated with it an effective noise current (#tex2html_wrap_inline1312#) in parallel with a power of #tex2html_wrap_inline1314#. Each of these noise currents is zero centered and has a root mean square amplitude dependent on the actual capacitance. Equation #eqnmatrix#265> is then solved for each of the noise sources independently. Each of the noise currents across the pair of receiver electrodes is then RMS summed:

#equation266#

This final noise current can then be used with the receiver impedance to get an mean square voltage amplitude.

The resultant thermal noise is confirmed to be as expected, very small. A typical value for this mean square voltage is #tex2html_wrap_inline1316#.