NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY
发明人:
Tsuchiya Masahiro
申请号：
US201615559906
公开号：
US10145791(B2)
申请日:
2016.01.27
申请国别(地区):
美国
年份:
2018
代理人:
Sughrue Mion, PLLC
摘要：
To minimize or prevent obstruction by a surface-mounted part or disturbance to an object to be visually observed, an electric field sensor is placed at a predetermined distance from a surface of the object to be visually observed, and a two-dimensional distribution of a high-frequency electric field is detected. Considering that the measured electric field distribution is due to an electrostatic field from the electric field distribution at the surface of the visually observed object, the electric field distribution at the surface is back-calculated from Gauss' flux theorem or the like, and the obtained electric field distribution is displayed or outputted. Thus, the electric field distribution at a position closer to the surface of the visually observed object is imaged while obstruction by a surface-mounted part or disturbance to the visually observed object is suppressed.
