本文藉由分析彈性動力問題與其應用之數值方法，建構模組以模擬表面聲波感測器來處理應力與位移之間的關聯，達到觀察敏感度之於數種操縱變因的情況。首先由彈性動力學的基本認知推導出Navier's Equation。針對Lamb's Problem中的一種特例，即Navier's Equation的特定邊界問題，藉此來求解垂直方向連續受力的彈性波表面位移。以C語言和Matlab作為實作工具，使用數值方法模型化該邊界問題，視覺化其模擬結果後繪製可觀察出波現象的表面位移之於時間的關係圖，與敏感度之於某種控制變因的趨勢圖，並藉由曲率計算出其控制變因相對於整組核對實驗結果的敏感度。

The object of this thesis is to observe the distinct situations of what sensitivities present varied trends with several control factors, through an analysis on simulation models about pressure surface acoustic wave sensors.

At first, having a basic knowledge of elastodynamics in linear elasticity, then making Navier's Equation be derived from some mechanical principles. Afterwards, for the specified boundary condition problem of Navier's equation, we adopt the known surface displacement function to compute elastic wave's surface displacement with continuously vertical stress. Using C and Matlab as applied materials, we build the simulation models for this boundary condition problem, and visualizing the simulation results to diagram the relation of displacement to time, in order to observe the wave behaviours.
The other point of whole thesis, is to determine the sensitivities to different factors through the curvature of their sensitivity curves in the tendencies' diagrams over the control experiments.

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