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A cable layer is a deep-sea vessel used to lay underwater cables on ocean floors for telecommunications and electric power transmission. Cables are stowed on the vessels in a spiral cable carousel and unreeled according to the speed at which the cable laying takes place. Braking needs to occur regularly while the cable is lowered onto the sea floor to control the laying speed. This frequent braking, along with atmospheric problems such as salt, water ingress and extreme temperatures creates a pretty tough working environment....
Date：2019-12-24 [More+]
Research report, Thick Film Resistor Market by Industry Resistor Type (Automotive, Electrical Electronics Telecommunication), Resistor Type (Thick Film Shunt), Vehicle Type (ICE, Electric Hybrid Vehicles) and Region - Global Forecast to 2025, indicates that the market is projected to grow at a compound annual growth rate of 5.06% to reach a market size of $615 million by 2025 from $435 million in 2018. Factors such as increasing adoption of advanced technologies in automotive industry, rising demand for high-performance elect...
Date：2019-12-20 [More+]
Wirewound resistors have been around for a long time. They enjoy a long life because they have some very important features not duplicated by new technology products, such as Nual series, GTW series, KSW series and more . If you must optimize circuit designs where precision is important, you should understand those characteristics. For most of the history of electronic and electrical circuits, wirewound resistors were commonly used as precision resistances. Wirewound precision resistors have some important characteristics. Fi...
Date：2019-12-19 [More+]
Resistors are produced with a wide variety of materials and manufacturing processes. Each resistor material has its typical properties and specific areas of use. The main types that are used in electrical engineering are summed below. Wirewound Resistor These types are made by winding resistance wire in a spiral around a non-conductive core. The resistance wire is usually a nickel-chromium alloy and the core is often ceramic or fiberglass. A coating such as vitreous enamel is used for protection. The spiral winding has capaci...
Date：2019-12-18 [More+]
To meet the growing demand in recent years for increased sulfuration resistance in a variety of fields, Microhm Electronics adopted an original electrode structure and protective material that significantly improve anti-sulfuration performance, contributing to increased safety and long-term reliability. Sulfur particles are generally present in the air in various forms due to sulfur and automotive exhaust gases. In sulfurous environments these particles can be adsorbed by the silver plating used in electronic components, incl...
Date：2019-12-18 [More+]
The first step in measuring current flow is to convert the electrical current into a more easily measured voltage parameter. Current shunt resistors are inexpensive components that accomplish this task. Cost-effective shunt resistors surpass Hall sensor and become a more popular passive component for current sense, such as MMS8420 from Microhm Electronics. However, the value of a shunt resistor should be low to minimize its impact on the circuit, and to minimize power dissipation in the resistor itself. Other significant para...
Date：2019-12-17 [More+]
In a paper appearing in Natures Scientific Reports, Dr. Ramesh Mani, professor of physics and astronomy at Georgia State University, reports that, in the presence of a magnetic field, negative resistivity can produce a positive resistance, along with a sign reversal in the Hall effect, in GaAs/AlGaAs semiconductor devices. The electrical resistance is a basic property of components known as resistors that occur in electrical circuits. Manufactures like Microhm Electronics are providing high quality resistors with various resi...
Date：2019-12-17 [More+]
In order to choose the most suitable resistor meeting the requirements of the application the user would need to allow for the differences between the actual service conditions and the Free Air Watt Rating. It is a general engineering practice to operate resistors at more than or less than the nominal rating. Microhm Electronics engineers provide professional suggestions for your applications. The most accurate method of determining or checking the rating is to measure the temperature rise in a trial installation. This more a...
Date：2019-12-16 [More+]
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