Magnetic field measurement based on a quantum phenomena in high frequency

2015 Fiscal Year Final Research Report

• Project/Area Number: 26630117
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: ISHII MASANORI 国立研究開発法人産業技術総合研究所, 物理計測標準研究部門, 主任研究員 (50356432)
• Co-Investigator(Kenkyū-buntansha): KINOSHITA Moto 国立研究開発法人産業技術総合研究所, 物理計測研究部門, 主任研究員 (00415671)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 電磁界測定 / 磁界センサ / ラビ周波数 / セシウム

Outline of Final Research Achievements

Sensors of electromagnetic fields traditionally consist of antenna elements that are made of metal. A common concern of this type sensor is perturbation of the electromagnetic field by the measurements.
We have recently studied a new type of electromagnetic-field sensor based on quantum phenomena, in which metal antenna elements are not employed.This new sensor has a glass cell that holds a gas of cesium-133 atoms instead of the metal antenna elements ordinarily required by electromagnetic-field sensors. The perturbation of an electromagnetic field being measured by the 133Cs-based sensor is thus expected to be lower than that by a metal-antenna-based sensor.
We studied on an initial examination of a new type electromagnetic field meter based on quantum phenomena without any metal antenna element.

Free Research Field

電磁環境工学、アンテナ、計測