Eddy current speed meter with thermal and electric shield case.
نویسندگان
چکیده
منابع مشابه
Eddy Current and Thermal Propagation for Quantitative NDT&E
As excitation factors of heating time and power directly affect the behaviour of eddy current and thermal propagation for eddy current pulsed thermography (ECPT), it is necessary to investigate the optimal parameters to maximize contrast between the defective and non-defective area as well as quantitative evaluation. The defect evaluation on complex geometry in the structural especially edges r...
متن کاملEddy current
Eddy currents (also called Foucault currents[1]) are loops of electrical current induced within conductors by a changing magnetic field in the conductor, due to Faraday’s law of induction. Eddy currents flow in closed loops within conductors, in planes perpendicular to the magnetic field. They can be induced within nearby stationary conductors by a time-varying magnetic field created by anAC el...
متن کاملUpgrading of Traditional Electric Meter into Wireless Electric Meter Using ZigBee Technology
Since the electric generating, distributing and marketing has been possible; the Electric Meter was introduced and developed along the years, but never like this time. The digital technology, the wireless communication, and the computer systems have dramatically changed the Electric meter generation from Traditional Meter to Automatic Meter and now to Smart Meter. Their differences lie in how t...
متن کاملSCIN: Shield Current Induced Noise
Introduction My previous note focused on pin 1 problems as an open door for RF into audio equipment. But RF can also enter equipment on the signal conductor(s) if the equipment fails to block it with an effective low pass filter. RF is induced on a shielded balanced pair by at least three mechanisms: • Imbalance in the magnetic coupling between the shield and the two signal conductors (Shield-c...
متن کاملReduced magnetic vector potential and electric scalar potential formulation for eddy current modeling
A finite element formulation using the reduced magnetic vector potential and the electric scalar potential is proposed for modeling eddy current nondestructive testing problems in which the probe coil scans across the sample. Excitation coil is not meshed and the remeshing is avoided during the motion of the coil. The mesh and system matrix remain unchanged with different coil positions. The in...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEJ Transactions on Fundamentals and Materials
سال: 1985
ISSN: 0385-4205,1347-5533
DOI: 10.1541/ieejfms1972.105.127