韋根傳感器為自驅動傳感器之一種，其於受到磁場方向改變360度時會輸出一對脈衝訊號，其訊號之峰值不受磁極改變之頻率影響。韋根傳感器有多項值得注意之優點使其相當適合工業上之應用，其為自驅動原件，不需另外供電、磁場極性變化一周，即輸出一對正負脈衝訊號。而輸出訊號之峰值和磁場之變化速度無關，可於極低速度變化下運作，亦有非接觸傳感、無可動元件，使用壽命極長等特性。
著眼於上述之優點，本研究進行韋根傳感器之特性探討，並希望借由獵能系統，尤其為應用韋根傳感器之獵能系統其無線傳感及可進行能量收集之特性，將其應用並整合於線性磁性位置量測系統中，目的為改善現有位置量測系統需依賴電池之模式。並且透過磁場之設計達成不需依賴特殊外加場強元件即可應用於線性磁性位置量測系統之中之韋根傳感器獵能裝置。
本研究使用實驗分析韋根傳感器其輸出之訊號與所受外部磁場以及磁場變換頻率之關係與各項訊號特性。基此基礎特性之探討，進而能夠得出韋根傳感器之最佳操作條件。而透過有限單元軟體輔助設計並分析獵能模組之讀頭設計可以掌握讀頭導磁設計之幾何對於其內部韋根傳感器之受磁磁場之影響，進而得出較佳之設計幾何。最後實際加工並進行為根傳感器獵能裝置之組裝測試，驗證於模擬中所設計之磁場。於輸出性能量測之實驗中，本研究探討了獵能裝置於操作中之各項運動參數對於輸出訊號之影響，包含間隙高度、速度、負載阻抗等參數均為探討之主軸。

Wiegand transducer is classified as a pulse generator to be used in gas meters and card readers applications. Due to the growing research field of micro-generators and energy harvesters, Wiegand transducer is also considered as the possible energy source for self-propelled devices. With the self-propelled and speed independent properties of Wiegand transducer, it is suitable for applications in the mechanical and automation industry.
The purpose of this study is focused on the application of Wiegand transducer in energy harvesting system and integrated it into linear position measurement system. In this study, Wiegand transducer energy harvesting device is integrated with the linear motion measurement system to obtain longer lifespan of the linear position measurement system and in order to replace the battery with the energy harvesting device. The basic magnetic properties of Wiegand transducer is investigated to understand its operation limit.
Finite element method is used to assist in designing and analyzing the read head for the energy harvesting module. Therefore, better design geometry can be obtained via understanding the influence of the magnetic guide design geometry in the read head of the Wiegand transducer on magnetic field. To understand the output performance of energy harvesting device, experimental approach is applied. Based on the experiment result, the influence of parameters such as geometry, speed and gap size has been studied in order to investigate the effect of parameters to the output signal.

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