本論文開發一套以 C++ 程式語言建構之超音波 C-Scan 非破壞性檢測系統，整合資料擷取、訊號處理與掃描控制模組，以驗證其應用於微形貌結構成像的可行性。系統透過資料擷取裝置產生數位觸發訊號，驅動脈衝產生接收器與商用浸水式換能器，完成超音波訊號的發射與接收，並控制示波器即時擷取波形並儲存資料；同時結合 XY 移動平台執行 Z 字型掃描，建立對應掃描區域之波形資料。
本系統主要由以下模組構成：(a) 數據擷取模組；(b) 訊號處理模組； (c) 移動平台控制模組。相較於傳統常以 LabVIEW 建構之系統架構，雖具圖控操作優勢，但在開放性、模組擴充性與跨平台整合方面存在侷限，且無法完全開源。本研究採用 C++ 建立整合控制平台，各模組之間透過程式即時通訊，有效確保掃描過程與資料擷取的同步性與穩定性。
為驗證系統穩定性與實用性，實驗選用具有微小形貌特徵（如硬幣圖案或文字）的試片進行掃描，並以 MATLAB 建立灰階 C-Scan 影像，作為系統最基礎之驗證方式。實驗結果顯示，本系統具備基本的微小形貌辨識能力，為後續應用於不同結構檢測提供實驗依據。整體設計強調系統整合性與成像能力，並聚焦於資料同步擷取與平台控制流程之完整性。

This study develops an ultrasonic C-Scan non-destructive testing (NDT) system entirely programmed in C++, integrating data acquisition, signal processing, and scanning control into a unified platform. The system uses a PXIe-6358 data acquisition card to output synchronized digital trigger signals to a Panametrics 5900PR pulser/receiver and a 10 MHz immersion-type transducer (V375). Ultrasonic signals are acquired in real time via a RIGOL MSO5204 oscilloscope through a VISA communication interface. A motorized XY motion stage executes a programmed zig-zag scan, with platform position and waveform capture tightly synchronized to prevent data loss and positional mismatch.
Unlike conventional LabVIEW-based architectures, the proposed C++ platform enhances openness, modular expandability, and cross-platform integration while reducing software licensing constraints. Validation experiments were performed on samples with micro-relief patterns, such as coins, to assess imaging accuracy. MATLAB-based grayscale C-Scan reconstructions at lateral resolutions of 0.5 mm and 0.2 mm revealed clear outlines and fine features, demonstrating the system’s capability for micro-feature recognition.

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