Analysis of the local current in GdBCO coated conductors using low-temperature scanning laser and Hall probe microscopy

Selective detection of AC transport current distributions in GdBCO coated conductors using low temperature scanning Hall probe microscopy

“…The principle of LTSHPM was shown in reference [2,[9][10]. We used 50x50 μm Hall probe and its height from the samples was about 100 μm.…”

“…[1] In our previous studies, we measured distributions of DC transport current in coated conductor with various external magnetic fields [2] and noticed that the DC current distribution was redistributed by external fields [3][4][5][6][7]. Likewise the DC current experiment, investigation about distribution of AC transport current and field dependence of AC current had been necessary.…”

Experimental and theoretical investigations on the singularity of the intensity factor of the current in high temperature superconductors

“…An analytical investigation of the current distribution around a centrally located crack in a long cylindrical superconductor has been presented by Xue and Zhou [19] recently, and they found that the current distribution at the tip of the crack was a singularity. In experimental investigations, magnetometers [20], scanning Hall probes [21,22], and magneto-optical devices [23,24] are used to measure the current distribution in the HTS thin films and bulks. Pashitski et al [23] reconstructed and visualized the current distribution properties in superconducting polycrystalline films by utilizing the magneto-optical imaging method, and they found that the influences of the high-angle boundaries on the current are remarkable.…”

A Study on the Method for the Local Transmittance Measurements of the Ocular Lens

“…현미경, 주사 홀소자 현미경 그리고 주사 레이저 현미경 등과 같은 다양한 국소적 분석 방법이 이용되고 있다 [11][12][13][14][15]. 이에 본 연구에서는 제조된 안경렌즈의광학적 특성 중 투과율의 균질성을 분석하기 위한 국소 투과율 현미경 (Local Transmittance Microscope, LTM)을 제작하고 이를 이용하여 안경렌즈의 국소적 투과율 특성에 대한 공간적 분포를 측정 및 분석함으로써 안경렌즈의 광학적 균질성 을 분석할 수 있는 방법으로서의 가능성을 진단하였다.…”