體表電近場放射之動態量測

Dynamic Tomography Measurement of Skin Electric Near Field Emitting

謝宗翰(Tsung-han Hsieh)

指導教授 ： 張榮森

國立中央大學/理學院/光電科學研究所碩士在職專班/碩士(2008年)

摘要

本研究係使用陣列測試系統進行體表電近場放射之非接觸式動態測量，此系統以每50毫秒即時產生動態、高精準度、49個測量信號結果的影片。裝置中使用7x7陣列電壓感測器,用來測量神經簇及其周圍的48個點，並取得動態測量結果影片。故可以測量到位於體表的神經簇及其周圍的電近場陣列分布。
本研究的原理分為兩階段：（１）在人體表面及量測信號端之間置入一固定厚度之絕緣層，形成一固定電容，利用陣列測試機台以不同電壓對此電容進行充放電，量測其儲存電荷值，進而導出其電容值大小。（２）人體表面之電位高低，同樣會對此電容做充電，故可以陣列測試機台對電容所儲存之電荷作量測，透過此量測之電荷值及（１）所得出之電容值，可算出人體表面之電位大小。
其放射場改變的頻率在0~20.4Hz，振幅在0~470毫伏特，可以提供大量的生理資料，不僅可以用來作為早期的診斷，亦可以量化的描述中醫人體的穴位。

關鍵字

穴位 ； 動態量測 ； 電荷檢測 ； 電近場

並列摘要

This study introduces our non-contact measurement of dynamic skin surface near field tomography array tester, which possesses real time 50ms per-frame, dynamic, high accuracy, and 49 channel signal movie. We employ 7×7 array electric voltage sensors to measure the neural cluster and its surrounding 48 points, and get a dynamic tomography movie. Skin electric near field matrix distribution at or around neural cluster can be measured.
The principle of the experiment is to make an insulator layer between the human skin surface and signal ends of measurement ports. By using the array tester to charge and discharge via different voltages, we can find the value of the capacitance from the charge value stored in it. According to the charge value measured and the capacitance value, we can obtain the voltage value near the human skin surface.
The dynamic changes of emitted field frequency 0-20.4Hz and the associated amplitude 0-470mVare giving us plenty of physiology information. This device could be applied in the early diagnosis cancel as well as quantitatively to express Chinese acupuncture.

並列關鍵字

charge sense ； electric near field ； Chinese acupuncture ； tomography measurement

參考文獻

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