Brain electricity measurement analyser

摘要

The brain electricity flow analyser has a gauge (1) to measure the brain electrical flow in both halves of the brain of a patient via measuring electrodes on the head of the patient. An amplifier (2) increases the produced signal and a counter has addition media. An A/D changer (3) alters the strength of the amplified analogue signal to a digitised signal. A calculator (8) counts the cross correlation function (CCF) of the digitised signal of both individual channels around fixed points. There is a store for the digitised information and a circuit (9) to apply a fast Fourier transform to the defined frequency area for the signal from each channel