Transducer for monitoring respiration during imaging procedures |
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Institution: | 1. Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, National-Local Joint Engineering Laboratory of Harbor Oil and Gas Storage and Transportation Technology, School of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan, Zhejiang 316022, China;2. National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, Zhejiang 316022, China |
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Abstract: | A transducer system for monitoring respiration is described; it uses a ‘liquid column’ sensor with a remote integrated circuit pressure module. It was designed primarily for non-invasive monitoring and control of respiration during diagnostic imaging procedures, but has also found applications in other areas, e.g. physiotherapy and pulse monitoring. The device is a new version of a system developed several years ago and takes advantage of relatively low cost commercial ‘building blocks’. The output is an analogue voltage (from a low impedance source) capable of driving a wide range of recorders, amplifiers and computer interfaces. Reference is also made in the text to a bio-feedback signal processing and display unit (described elsewhere) which, when used with this transducer, provides a versatile respiratory control system. |
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