本論文主要目的為設計一套用於鼻病產生時所引發鼻阻塞情形之量測系統，可將鼻阻塞情形量化、儲存。在臨床醫學上觀察發現，鼻阻塞情形不一定和病患的自我感覺符合，因此僅個人主觀感覺描述其鼻腔阻塞情況，準確性不高，故須輔以客觀檢測方式。經由本系統量測，將鼻阻塞情形量化，將有利於醫師判斷病患鼻阻塞程度，做為治療的參考。目前有多種應用於量測鼻阻塞情形之儀器，大部分儀器量測鼻腔內的壓力或鼻腔內的空氣流速，而本系統則是利用鼻腔呼氣面積來量化，採用電容麥克風為感應元件，鼻腔所呼出的氣流，通過電容麥克風陣列，將所得資料存於暫存器，配合單晶片8051處理，經由串列通訊RS-232傳送數據，在個人電腦之人機介面顯示出來。本檢測器系統可儲存多次量測結果，並由比對舊數據和目前所量測的數據來評估鼻阻塞情形是否有改善。

The aim of this thesis is to design a measurement system that can be used to quantify and store the situation of nasal obstruction. The condition of the nasal obstruction usually do not fit in with patients’ feelings, so there is a need to find an objective measurement method to inspect the condition of nasal obstruction quantitatively. It also helps doctors to understand patients’ nasal obstruction condition. There are many kinds of apparatuses to measure the condition of nasal obstruction, and most of the apparatuses measure the pressure or the flow rate of air in nasal cavity. In this study, we adopt the condenser microphone as the detecting component. The expiratory air will flow through the condenser microphones array. The data are processed and stored in the registers of 8051 single-chip, and then delivered to computer via the RS-232 interface. We can compare the previous saved data and the current measured data. Then we can assess whether the nasal obstruction has improved or not.

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