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Induction heating is the process of heating an electrically conducting object (usually a metal) by electromagnetic induction, where eddy currents (also called Foucault currents) are generated within the metal and resistance leads to Joule heating of the metal. An induction heater (for any process) consists of an electromagnet, through which a high-frequency alternating current..

Laser From Wikipedia, the free encyclopedia United States Air Force laser experiment Laser beams in fog, reflected on a car windshield A laser is a device that emits light (electromagnetic radiation) through a process of optical amplification based on the stimulated emission of photons. The term "laser" originated as an acronym for Light Amplification by Stimulated Emission of Radiation. The em..

Piezoelectricity 壓電 Jump to: navigation, search Piezoelectricity (pronounced /piˌeɪzoʊˌilɛkˈtrɪsɪti/) is the charge which accumulates in certain solid materials (notably crystals, certain ceramics, and biological matter such as bone, DNA and various proteins)[1] in response to applied mechanical strain. The word piezoelectricity means electricity resulting from pressure. It ..

로드셀의 원리.doc Load cell From Wikipedia, the free encyclopedia Jump to: navigation, search A load cell is typically an electronic device (transducer) that is used to convert a force into an electrical signal. This conversion is indirect and happens in two stages. Through a mechanical arrangement, the force being sensed deforms a strain gauge. The strain gauge converts the deformation (..

Strain gauge From Wikipedia, the free encyclopedia Jump to: navigation, search Typical foil strain gauge. The gauge is far more sensitive to strain in the vertical direction than in the horizontal direction. The markings outside the active area help to align the gauge during installation. A strain gauge (alternatively: strain gage) is a device used to measure deformation (strain) of an object. ..

Angular momentum From Wikipedia, the free encyclopedia Jump to: navigation, search Classical mechanics Newton's Second Law History of ... [show]Fundamental concepts Space · Time · Mass · Force Energy · Momentum [hide]Formulations Newtonian mechanics Lagrangian mechanics Hamiltonian mechanics [show]Branches Statics Dynamics Kinematics Applied mechanics Celestial mechanics Continuum mechan..

Electric field From Wikipedia, the free encyclopedia Jump to: navigation, search Electromagnetism Electricity · Magnetism Electrostatics Electric charge · Coulomb's law · Electric field · Electric flux · Gauss's law · Electric potential · Electrostatic induction · Electric dipole moment · Polarization density Magnetostatics Ampère’s law · Electric current · Magnetic fie..

Magnetic field From Wikipedia, the free encyclopedia Magnetic field lines represented by the alignment of iron filings줄 열. The high magnetic permeability of the individual filings causes their magnetic fields to concentrate at their ends. The mutual attraction of opposite poles then results in the formation of elongated clusters of filings along the field lines. However, these lines do not ..

Electromagnetism From Wikipedia, the free encyclopedia Jump to: navigation, search Electromagnetism is the physics of the electromagnetic field: a field which exerts a force on particles that possess the property of electric charge, and is in turn affected by the presence and motion of those particles. A changing magnetic field produces an electric field (this is the phenomenon of electromagneti..