The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
RF 자기장의 진폭과 위상에 대한 새로운 측정 시스템이 제안됩니다. 소형 루프 안테나와 연결된 레이저 다이오드(LD), 광섬유 전송선, 위상 감지 감지 장비로 구성됩니다. LD 출력 광은 테스트 중인 RF 자기장에 의해 루프 안테나에 유도된 RF 전류에 의해 직접 강도 변조됩니다. RF 자기장의 순간 진폭과 위상은 LD의 빠른 응답으로 인해 변조된 빛에 보존되며 원격 감지 시스템에 의해 감지됩니다. 교정의 특성, 감도, 최소 감지 가능 필드 및 주파수 응답이 자세히 분석됩니다. 시스템은 매우 민감하고, 교란되지 않으며, 비대화형입니다. 이러한 장점 외에도 RF 자기장의 위상을 측정하는 탁월한 특성은 수많은 자기장 측정을 통해 실험적으로 확인됩니다. 결과적으로 감지 가능한 최소 RF 자기장은 10μA/cm(38nW/cm)로 얻어집니다.2 전력 밀도에서) 다른 것보다 현저히 낮습니다.
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부
Ken-ichi HAYASHI, Kazuo ARAI, Yoshio IDA, "Measuring System Sensitive to Amplitude and Phase of RF Magnetic Field Using LD and Optical Fiber" in IEICE TRANSACTIONS on transactions,
vol. E70-E, no. 2, pp. 135-140, February 1987, doi: .
Abstract: A novel measuring system on the amplitude and phase of the RF magnetic field is proposed. It is composed of a laser diode (LD) linked with a small loop antenna, an optical fiber transmission line, and phase-sensitive detection instruments. The LD output light is directly intensity-modulated by the RF current induced in the loop antenna by the RF magnetic field under test. The instantaneous amplitude and phase of the RF magnetic field are preserved in the modulated light because of the quick response of LD and are detected by the remote detection system. The characteristics of the calibration, the sensitivity, the minimum detectable field, and the frequency response are analyzed in detail. The system is highly sensitive, nonperturbing, and noninteractive. In addition to these advantages, the excellent property for measuring the phase of the RF magnetic field is experimentally confirmed by many field measurements. Resultantly, the minimum detectable RF magnetic field is obtained as 10 µA/cm (38 nW/cm2 in power density) remarkably lower than others.
URL: https://global.ieice.org/en_transactions/transactions/10.1587/e70-e_2_135/_p
부
@ARTICLE{e70-e_2_135,
author={Ken-ichi HAYASHI, Kazuo ARAI, Yoshio IDA, },
journal={IEICE TRANSACTIONS on transactions},
title={Measuring System Sensitive to Amplitude and Phase of RF Magnetic Field Using LD and Optical Fiber},
year={1987},
volume={E70-E},
number={2},
pages={135-140},
abstract={A novel measuring system on the amplitude and phase of the RF magnetic field is proposed. It is composed of a laser diode (LD) linked with a small loop antenna, an optical fiber transmission line, and phase-sensitive detection instruments. The LD output light is directly intensity-modulated by the RF current induced in the loop antenna by the RF magnetic field under test. The instantaneous amplitude and phase of the RF magnetic field are preserved in the modulated light because of the quick response of LD and are detected by the remote detection system. The characteristics of the calibration, the sensitivity, the minimum detectable field, and the frequency response are analyzed in detail. The system is highly sensitive, nonperturbing, and noninteractive. In addition to these advantages, the excellent property for measuring the phase of the RF magnetic field is experimentally confirmed by many field measurements. Resultantly, the minimum detectable RF magnetic field is obtained as 10 µA/cm (38 nW/cm2 in power density) remarkably lower than others.},
keywords={},
doi={},
ISSN={},
month={February},}
부
TY - JOUR
TI - Measuring System Sensitive to Amplitude and Phase of RF Magnetic Field Using LD and Optical Fiber
T2 - IEICE TRANSACTIONS on transactions
SP - 135
EP - 140
AU - Ken-ichi HAYASHI
AU - Kazuo ARAI
AU - Yoshio IDA
PY - 1987
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E70-E
IS - 2
JA - IEICE TRANSACTIONS on transactions
Y1 - February 1987
AB - A novel measuring system on the amplitude and phase of the RF magnetic field is proposed. It is composed of a laser diode (LD) linked with a small loop antenna, an optical fiber transmission line, and phase-sensitive detection instruments. The LD output light is directly intensity-modulated by the RF current induced in the loop antenna by the RF magnetic field under test. The instantaneous amplitude and phase of the RF magnetic field are preserved in the modulated light because of the quick response of LD and are detected by the remote detection system. The characteristics of the calibration, the sensitivity, the minimum detectable field, and the frequency response are analyzed in detail. The system is highly sensitive, nonperturbing, and noninteractive. In addition to these advantages, the excellent property for measuring the phase of the RF magnetic field is experimentally confirmed by many field measurements. Resultantly, the minimum detectable RF magnetic field is obtained as 10 µA/cm (38 nW/cm2 in power density) remarkably lower than others.
ER -