KMID : 1137820050260060351
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ÀÇ°øÇÐȸÁö 2005 Volume.26 No. 6 p.351 ~ p.356
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Sensitivity Enhancement of Spirometer Employing Ultrasonic Method
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Han SH
Kim YK
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Abstract
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Respiration measurement method using an ultrasound sensor is influenced very little by an error of inertia and pressure. This device measures the amount and flow of respiration using a delivery speed difference of the ultrasound waves that are a return format by the pneumatic stream that is a flogging of ultrasound waves during transmission and receipt as having used a characteristic of ultrasound waves. This paper examines improving the sensor¡¯¡¯s sensitivity during transmission and receipt of the signal. Because the measurement must be performed on patients, clinicians need to be sure that it is accurately measuring even very weak breathing.
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KEYWORD
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