When we buy audio and video equipment, we need to know what cables will connect the various devices in a harmonious audio-visual system, so that…
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Photoelectric sensors, also called photosensitive switches, serve to automatically turn on outdoor lighting in reduced ambient light. They can be integrated into the luminaire itself…
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Мultimeters are among the most common measuring instruments after clocks and thermometers. The device was invented in 1820, in the form of a galvanometer. It…
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Induction three-phase motors are widely used in industry because of their simple structure, extremely high reliability and low cost. The speed of the induction three-phase…
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In industry various devices and systems are used to regulate liquid levels – electronic, electrical, mercury, electromechanical and mechanical. Electronic ones are the most accurate,…
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Most modern cars have a built-in audio system with speakers in the doors and a player in the dashboard, but very often the factory-made audio…
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Many people think that the installation of a solar system is complicated, expensive and of limited efficiency and therefore they do not yet have one.…
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Types of computer fans Computers are equipped with different cooling systems that spread the excess heat generated by the components, the main systems including CPU…
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Motor start capacitors are designed for starting AC induction motors. Start capacitors have two essential roles: 1.They reduce sparking between the contacts. 2. They provide…
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One of the main problems that need to be resolved in the design and construction of systems for video-surveillance is unconditionally the provision of power…
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