A Measurement System for Proton Gyromagnetic Ratio Determination as a Basis for a Magnetic Flux Density Standard
نویسندگان
چکیده
− The proton gyromagnetic ratio (γ'P) plays a fundamental role in achieving highly accurate magneticfield measurements. At the KRISS complex for the determination of the proton gyromagnetic ratio, we have improved a magnetic-field standard based on the value of γ'P and related techniques. The standard for measuring DC magnetic flux density is intended to cover the range from 20 μT to 2.5 T, with an uncertainty ranging from 4 × 10 to 6 × 10 T.
منابع مشابه
بررسی میزان میدان مغناطیسی بافرکانس بینهایت پایین (ELF) شهر تهران در سال 1391
Introduction: The power transmission lines are the emission source of extremely low frequency (ELF) electromagnetic fields that are considered to have an adverse impact on human health. Therefore the aim of this study was to evaluate the amount of magnetic flux with extremely low frequencies (ELF) around high voltage power transmission lines in the western areas of Tehran in 2012. Material a...
متن کاملEffect of Paramagnetic Ions in Aqueous Solution for Precision Measurement of Proton Gyromagnetic Ratio
The measurement of proton gyromagnetic ratio }'p' has been the object of an intensive experimental program for several decades [l]-[3]. The gyromagnetic ratio of the proton is defined as a resonance frequency «p divided by a magnetic field Bo [4], when a spherical water sample at 25°C is applied by a magnetic field. The ?P' for a defined pure water sample is somewhat difficult to measure becaus...
متن کاملارزیابی محیطی چگالی شار مغناطیسی با فرکانس بی نهایت کم در یک نیروگاه حرارتی و بررسی مواجهه کارکنان با آن بر حسب نوع وظیفه شغلی
Background and aims: Extremely low frequency magnetic field (ELF) is part of Spectrum of electromagnetic waves with range 30 to 300 Hz. The average magnetic field exposures in the workplace have been found to be higher in “electrical occupations” than in other occupations such as office work. The interaction between magnetic fields produced by power lines and substations with living organisms a...
متن کاملMeasurement and simulation of magnetic field strenght in the nano magnetic abrasive finishing process
Magnetic abrasive finishing can be classified as a non-traditional super finishing method for finishing surfaces with different shapes and working materials like flat plates, shafts, bearings parts, screws, tubes and many other mechanical parts that need good surface finishing properties. MAF is effective in polishing, cleaning, deburring and burnishing metal parts. The most important parameter...
متن کاملComparative Harmonic Loss Measurement of Grain Oriented and Non-oriented Magnetic Sheets Using a High Precision Single Sheet Tester
Abstract: Local flux may be distorted in many regions of core, although total flux is usually sinusoidal. When attempting to predict the loss distribution in materials operating under localized distorted flux conditions, which occur in machines and transformer cores, it is essential that proper account of the waveform be taken. Moreover for development of new magnetic materials and generation ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2005