Electron beam welding in vacuum utilizes the kinetic energy of electrons traveling with high velocity in a high vacuum (10-3 to 10-5 mm Hg). When the electrons strike the surface of the metal, they give up the bulk of their energy as heat, and this goes to melt the metal. If the work is done in […]
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The laser is a device that produces a concentrated coherent light beam by stimulating electronic or molecular transitions to lower energy levels. The word laser is an acronym for “light amplification by stimulated emission of radiation”. The laser beam is a highly concentrated source of energy which has many applications. It can be used for welding,
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Properties and Applications of Soft Magnetic Materials Materials which have a steeply rising magnetization curve, relatively small and narrow hysteresis loop and consequently small energy losses for each cycle of magnetization are called soft magnetic materials. Soft magnetic materials are, therefore, employed in building cores for use in alternating magnetic fields. The commonest soft magnetic materials
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Ferromagnetic materials have a crystal structure which means that they are made up of crystals. Every crystal of a ferromagnetic substance has a particular direction along which it offers high permeability and is, therefore, most easily magnetized. Such axes, along which the crystals have high permeability and are more easily magnetized, are called the “preferred”
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Hi friends, In this article, I am discussing the “Creep in materials.” Types of creep and creep strength. So let us start. Metals will deform under steady service loads less than the short-time elastic strength if the loads are applied for a very long time at temperatures near the crystallization temperature. Apparently, the atoms tend
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Hi friends, In this article, am discussing the properties of superconductors and the applications of superconductors. This article will provide you sufficient information about superconductors. The resistivity of most metals increases with increase in temperature and vice-versa. There are some metals and chemical compounds whose resistivity becomes zero when their temperature is brought
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A data acquisition system (DAQ) is a computerized system that collects data from the real world, converts it into the form of electrical signals, and does required processing on it for storage, and presentation on computers. It acts as a bridge between the physical world and the digital realm. It captures physical quantities like temperature,
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Hi friends, In this article, I am discussing the piezoelectric effect, piezoelectric transducer working principle, its working, and applications. You will find this article informative and interesting, I hope so.The Piezoelectric transducer is an active transducer. It is generally used to convert mechanical stress or pressure into an electrical signal. These physical quantities cannot be measured
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Hi friends, In this article, I am going to discuss the RTD working principle, its construction and applications. It is also known as a resistance thermometer. A resistance temperature detector is a passive resistive transducer. It is used to measure the change in temperature. RTD Working Principle As we know that every metal has a definite
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Hi friends, In this article, I am going to describe you strain gauge working principle, gauge factor and strain gauge load cell working. A strain gauge is a passive transducer, that converts mechanical displacement into the change of resistance. A strain gauge sensor is a thin wafer-like device that can be attached to a variety of materials
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