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Definition of "ohmmeter" |
A device for measuring electrical resistance directly in ohm. / An instrument for measuring resistance in ohms. / An ohmmeter is an electrical instrument that measures electrical resistance, the opposition to an electric current. Micro-ohmmeters make low resistance measurements. Megohmmeters aka megaohmmeter or in the case of a trademarked device Megger measure large values of resistance. The unit of measurement for resistance is ohms. / Lobe switching is a method used on early radar sets to improve tracking accuracy. It used two slightly separated antenna elements to send the beam slightly to either side of the midline of the antenna, switching between the two to find which one gave the stronger return, thereby indicating which direction the antenna should be moved in order to point directly at the target. / device used to measure electrical resistance. |
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