PSM1700 PsimetriQ user manual
16-12
16.10 Longitudinal balance
Longitudinal balance is a measure of the common mode
rejection ratio, CMRR, of the transformer.
Longitudinal balance requires external circuitry to give the
required accuracy – a plug in module is available for the
transformer analyser fixture, TAF01, with precision
resistors and active buffers adjacent to the transformer
pins to minimise stray effects.
As a figure of merit, a higher value of longitudinal balance
indicates a better transformer.