Development of a Wireless Sensor for the Measurement of Chicken Blood Flow Using the Laser Doppler Blood Flow Meter Technique

作者：Nishihara Kei^*; Iwasaki Wataru; Nakamura Masaki; Higurashi Eiji; Soh Tomoki; Itoh Toshihiro; Okada Hironao; Maeda Ryutaro; Sawada Renshi

来源：IEEE Transactions on Biomedical Engineering, 2013, 60(6): 1645-1653.

DOI：10.1109/TBME.2013.2241062

• Avian influenza
• blood flow
• laser Doppler
• low power consumption
• microsensor
• wireless

Here, we report the development of an integrated laser Doppler blood flow micrometer for chickens. This sensor weighs only 18 g and is one of the smallest-sized blood flow meters, with no wired line, these are features necessary for attaching the sensor to the chicken. The structure of the sensor chip consists of two silicon cavities with a photo diode and a laser diode, which was achieved using the microelectromechanical systems technique, resulting in its small size and significantly low power consumption. In addition, we introduced an intermittent measuring arrangement in the measuring system to reduce power consumption and to enable the sensor to work longer. We were successfully able to measure chicken blood flow for five consecutive days, and discovered that chicken blood flow shows daily fluctuations.

• 出版日期2013-6