The invention discloses a preparation method of a common-structure bimodal
respiration sensor based on a printing process, and aims to solve the problem that an existing
respiration sensor cannot monitor and recognize a mouth-
nose respiration mode. According to the device, NaCl is loaded on leather fibers through ultrasonic soaking to form a
humidity-sensitive layer. Then, a G / PEDOT: PSS positive
electrode and a Zn negative
electrode are sequentially subjected to silk-
screen printing on the substrate, and after
drying and curing,
silver paste is smeared at end points to form a lead area; the sensor responds to temperature change through positive
electrode resistance, and responds to
humidity change through open-circuit
voltage between the positive electrode and the negative electrode. Based on the difference between the breath temperatures of the mouth and the
nose, various
breathing modes can be stably recognized in real time, and accurate distinguishing between
mouth breathing and
nose breathing is achieved. The
system has high customizability, the dual-mode common structure design of the
system has important significance on the development of wearable and multi-mode sensors, and the
system can be widely applied to the fields of sleep
respiratory disease monitoring, respiratory
rehabilitation management and the like.