|
 磁電渦流非導磁金屬導電率量測系統
|
刊登日期：2023/03/01 |
|
|
|
|
|
| ‧ 專利名稱 |
渦電流感測系統及其方法 |
| ‧ 專利證書號 |
I794764
|
| ‧ 專利權人 |
國立臺灣大學 |
‧ 專利國家
(申請日) |
中華民國 (2021/03/05)
|
|
|
| |
| ‧ 發明人/PI |
林峻永,黃士誠,吳易泰,陳皓澤,
|
| ‧ 單位 |
機械工程學系
|
| ‧ 簡歷/Experience |
|
|
| 技術摘要 / Our Technology： |
本發明實施例提供一種渦電流感測方法，適用於選擇性地耦接於非導磁金屬的渦電流感測系統，渦電流感測方法包括：訊號處理單元產生激勵電流至激勵感測單元；激勵感測單元接收激勵電流，並據此產生激勵磁場，其中非導磁金屬響應於感應到的激勵磁場而產生渦電流，並進而產生感應磁場；激勵感測單元響應於感測到的空間磁場，將空間磁場轉換為電壓訊號；以及訊號處理單元接收電壓訊號，並將電壓訊號反轉換為空間磁場，並對空間磁場執行磁場分離運算，以取得感應磁場的大小及相位，並據此執行估測運算，以估測出非導磁金屬的導電率及厚度。
An eddy current sensing method is provided, which is suitable for an eddy current sensing system selectively coupled to a non-magnetic metal. The eddy current sensing method comprises the following steps: a signal processing unit generates an excitation current to an excitation sensing unit; the excitation sensing unit receives the excitation current and generates an excitation magnetic field according to the excitation current, wherein the non-magnetic metal generates an eddy current in response to the induced excitation magnetic field and then generates an induced magnetic field; the excitation sensing unit in response to the sensed spatial magnetic field, and transforms it into a voltage signal; the signal processing unit receives and inverses the voltage signal into the spatial magnetic field, and performs a magnetic field separation operation on the spatial magnetic field to obtain the magnitude and phase of the induced magnetic field, and performs an estimation operation according to the magnitude and phase of the induced magnetic field to estimate the conductivity and thickness of the non-magnetic metal.
|
| 專利簡述 / Intellectual Properties： |
|
| |
聯繫方式 / Contact： |
| 臺大產學合作總中心 / Center of Industry-Academia Collaboration, NTU |
|
| Email：ordiac@ntu.edu.tw |
電話/Tel：02-3366-9945 |
|
|
| |
|
| |
 |
專利行銷平台