O-Breath

Small sized fiber sensor system for breathing monitoring in nuclear magnetic resonance imaging

O-breath is a photonic strain sensing device which is developed for detecting repeated large deformation with specially designed notch structure on polymer optical fiber (POF) by detecting the transmission power of the POF. O-breath has a maximum working range of up to 30% strain, which meets various applications requirements in wearable electronics, healthcare, industrial engineering, etc. O-breath has a high repeatability and low hysteresis, and will not produce electromagnetic interference. Therefore, it can be used in nuclear magnetic resonance imaging (NMRI) application for breath-rate monitoring.

Special Features and Advantages

Small Size : The polymeric optical fibers for the sensors have a diameter of few hundred micrometer
Large Deformation : O-breath has a working range of up to 30% for various large strain measurement
Anti-electromagnetic Interference : O-breath will not produce anti-electromagnetic interference and thus electromagnetic shielding is not required
Reliability : Good temperature and long term cyclic reliability
Low Cost : The cost for materials system and fabrication process is low

Applications

O-breath is developed for respiratory monitoring in nuclear magnetic resonance imaging (NMRI)

Patent

Patent application No.:

61/212,451 (US)

Principal Investigator

Prof. Xiaoming TAO

Institute of Textiles and Clothing

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O-Breath

Small sized fiber sensor system for breathing monitoring in nuclear magnetic resonance imaging

O-Breath

O-Breath monitoring system

Wearing trial results of O-Breath

Relationship between normalized transmission power and strain

O-breath specifications

Special Features and Advantages

Applications

Patent

Principal Investigator