用压阻式悬臂梁对液体进行人体脉搏波测量

2015 28th IEEE International Conference on Micro Electro Mechanical Systems (MEMS) Pub Date : 2015-03-02 DOI:10.1109/MEMSYS.2015.7051046

T. Kaneko, N. Minh-Dung, P. Quang-Khang, Y. Takei, T. Takahata, K. Matsumoto, I. Shimoyama

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引用次数: 11

摘要

我们提出了一种可以高灵敏度测量人体各部位脉搏波的装置。通过同步测量两点上的脉冲波来计算脉冲波速度。该装置有一个压阻悬臂放置在硅油上。带油的悬臂梁包埋在聚二甲基硅氧烷(PDMS)中。由于硅油和PDMS具有类似人体皮肤的声阻抗，动脉的压力波可以很好地传递到悬臂上。当激励位移为1 μm时，该器件在10 ~ 100 Hz范围内的信噪比为~80 dB。

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Pulse wave measurement in human using piezoresistive cantilever on liquid

We propose a device that can measure pulse waves at various points on human body with high sensitivity. Pulse wave velocity was calculated from a synchronized pulse wave measurement on two points. The device had a piezoresistive cantilever placed on silicone oil. The cantilever with oil was embedded in polydimethylsiloxane (PDMS). Pressure waves from arteries can be well conveyed to the cantilever, for the human-skin-like acoustic impedance of the silicone oil and PDMS. The signal to noise ratio of the device was ~80 dB in 10-100 Hz, when excited ~1 μm in displacement.

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2015 28th IEEE International Conference on Micro Electro Mechanical Systems (MEMS)

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