本論文之目的在於研究非接觸式之血壓量測方法，解決市面上血壓計在量測過程中會帶給量測者壓疼的不適感，並改善無法長時間監測血壓之狀況。因此本論文將利用兩種不同之感測器量測手腕脈波訊號，該兩種感測器分別為本實驗室所設計之微擾注入鎖定原理感測器，以及使用24 GHz 之雷達感測器。兩感測器所量測之手腕脈波訊號分別經過數位訊號處理濾波後，擷取其中之反射脈波傳播時間，搭配本論文所推導出血壓計算公式進行校正並計算出血壓，最後與市售的血壓計ORMON HEM-7310比較及分析。本論文針對此兩種感測器分別進行單人及多人的量測並計算出血壓，在為本實驗室所設計之微擾注入鎖定原理感測器的量測結果中，其中單人量測血壓的SBP與DBP之誤差分別，2.565.61 mmHg與3.513.34 mmHg，而綜合多人量測，其平均誤差率則分別為SBP -2.3811.14 mmHg與DBP 0.936.15 mmHg。使用24 GHz之雷達感測器的單人量測結果SBP與DBP的最大誤差分別為0.555.44 mmHg與 2.263.93 mmHg。
本論文所提出之血壓量測方法，具有非接觸之優點，適用於長期監測所用，且與市面上販售之血壓計的數據有吻合的量測結果。

The aim of this thesis is to develop a noncontact cuffless blood pressure measurement, that offers a new feature for healthcare applications to reduce the discomfort when measuring with sphygmomanometer. In this thesis, blood pressure (BP) calculations using reflected pulse transit time (R-PTT) measured with two types of sensors: perturbation-injection-locked (PIL) sensor, and the 24 GHz radar sensor. In the experiments, ORMON HEM-7310 is taken as reference. For single subject using the PIL sensor, the difference of systolic blood pressure (SBP) is 2.565.61 mmHg and that of the diastolic blood pressure (DBP) is 3.513.34 mmHg. Using the same sensor for multiple subjects, the average differences of SBP and DBP are -2.3811.14 mmHg and 0.936.15 mmHg, respectively. For single subject using the 24 GHz radar sensor, the difference of SBP is 0.555.44 mmHg and that of DBP is 2.263.93 mmHg. Overall, our findings demonstrate the potential of a noncontact blood pressure measurement system, and reveals that the results match with the blood-pressure monitor. This noncontact approach will likely impact the future design of cuffless BP measurement.

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