[The design of a circuit for detecting respiration signal with impedance method].
A respiration signal detecting circuit with impedance method is introduced. In this circuit, a four electrode arrangement is used, which can reduce movement artifact in using two electrodes. In signal processing, a series of methods such as filtering and amplyfing are used to overcome the heart beat and bloodflow signals. The circuit has successfully been applied in the blocking physiological parameters monitor that we have developed.
Qi
J
J
Xi'an Jiaotong University.
Lin
Y
Y
Bian
Z
Z
D017097:Electric Impedance; D004594:Electrophysiology; D006801:Humans; D012119:Respiration