The embodiment of the invention discloses an
electrical impedance tomography measuring method, which is characterized in that: in an
annular array of N electrodes arranged in the
body surface of a
human body, every two adjacent electrodes form a pair of exciting
electrode pairs to perform excitation once, and the excitation is performed for N times; in one of the excitation, other N-2 electrodes expect the exciting
electrode pairs are used as measuring electrodes, two electrodes adjacent to the excited electrodes in the current excitation are used as reference electrodes and form measuring
electrode pairs with other measuring electrodes, and the measuring electrode pairs and a measuring
electrode pair is formed by the two reference electrodes, and 2N-7 measuring electrode pairs are formed; and after exciting current is inputted by the exciting electrode pairs, the
voltage data of the 2N-7 measuring electrode pairs are measured, and
electrical impedance distribution images in the
human body are acquired according to N(2N-7)
voltage data obtained by exciting and measuring for N times, wherein N is an integral number which is more than or equal to 8. The embodiment of the invention also discloses the other
electrical impedance tomography measuring method. By the method, the reliability and effectiveness of measuring integral the data can be improved, independent measuring numbers are enough, redundant measuring is less, and the real time of the measuring is good. Particularly the imaging effect is better under the condition of lower measuring sensitivity and lower
signal to
noise ratio in an
electrical impedance tomography (EIT)
system.