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An electrical meter with integral AC current clamp is known as a clamp meter, clamp-on ammeter, tong tester, or colloquially as an amp clamp. A clamp meter measures the vector sum of the currents flowing in all the conductors passing through the probe, which depends on the phase relationship of the currents. Only one conductor is normally ...
For example, if the meter is set to a range of 300 V full scale, the meter's impedance will be 6 MΩ. 20,000 Ω/V is the best (highest) sensitivity available for typical analog multimeters that lack internal amplifiers. For meters that do have internal amplifiers (VTVMs, FETVMs, etc.), the input impedance is fixed by the amplifier circuit.
An integrating current meter calibrated in ampere-hours or charge There is also a range of devices referred to as integrating ammeters. [ 6 ] [ 7 ] In these ammeters the current is summed over time, giving as a result the product of current and time; which is proportional to the electrical charge transferred with that current.
A beam of light reflected from the mirror falls on a graduated scale across the room, acting as a long mass-less pointer. The mirror galvanometer was used as the receiver in the first trans-Atlantic submarine telegraph cables in the 1850s, to detect the extremely faint pulses of current after their thousand-mile journey under the Atlantic.
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Any outlet can be made more usable with this Presto Plug Outlet Extender.This outlet acts like an extension court by plugging into an outlet in your home and stretching to another location with a ...
light meter: light (in photography) linear position transducer: speed of movement load cell: measurement of force lux meter: intensity of light magnetometer: strength of magnetic fields manometer: pressure of gas mass flow meter: mass flow rate of a fluid travelling through a tube mass spectrometer
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