本文旨在探討印表機傳動系統參數之量測，依據力學原理對一印表機進行實地的量測。量測項目包括皮帶彈性常數、傳動系統慣性阻抗、軸孔配合件間的動摩擦係數、皮帶所受初壓力與入紙簧片的壓力量測等。經由實際的量測與驗證，皮帶彈性常數為穩定之數值，傳動系統慣性阻抗隨著量測元件的減少，量得數值也隨之減少，藉由前後階段啟動扭力值的比較即能知道各元件之慣性阻抗，利用數位攝影機紀錄軸孔配合件間轉動情形，可進一步推算動摩擦係數，皮帶所受初壓力與入紙簧片的壓力量測，可量得施予皮帶上之初壓力與入紙簧片施予傳動軸之壓力。最後嘗試設計新型扭力轉接工具，以力學分析為基礎搭配實際驗證，設計出一個電子式扭力轉接工具，實驗結果顯示，實際量測值與理論設計值吻合良好，亦即該扭力轉接工具的結構能適當的用於顯示所受的扭力。

This thesis mainly discusses the parameter measurement of a printer transmission system, the mechanics principle is applied through the measurement. The measurement items include the belt elasticity constant, the transmission system inertia resistance, the coefficient of dynamics friction between shaft and hole, the pressure on the belt and on the pinch arm, and so on. Through the actual measuring and calibration, the belt elasticity constant remains stable. The value of transmission inertia resistance reduced as the result of reducing the parts of the transmission system. The inertia resistance value between each part can be figured out by comparing the required driven torque in different stages. A digital camcorder is used to record the rotation situation of the coupling between shaft and hole , and the coefficient of dynamics friction may be calculated. Through the actual experiments, the initial pressure applied on belt and the pressure from pinch arm applied on transmission shaft can be measured. Finally, a novel electrical converter is proposed based on mechanic analysis and experiments. As the result of the experiment, the measured value agreed well with the value, indicating the new torque converter can be properly used to measure torque.

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