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2. Current clamp - Wikipedia

   en.wikipedia.org/wiki/Current_clamp

   Clamp meter. In electrical and electronic engineering, a current clamp, also known as current probe, is an electrical device with jaws which open to allow clamping around an electrical conductor. This allows measurement of the current in a conductor without the need to make physical contact with it, or to disconnect it for insertion through the ...

3. Electrical resistivity measurement of concrete - Wikipedia

   en.wikipedia.org/wiki/Electrical_resistivity...

   The current in the sample is detected by a current coil wound around a section of the toroid (a current transformer). This method is good for measuring the setting properties of concrete, its hydration and strength. Wet concrete has a resistivity of around 1 Ω-m which progressively increases as the cement sets. [3]

4. List of electrical and electronic measuring equipment

   en.wikipedia.org/wiki/List_of_electrical_and...

   Measures current Capacitance meter: Measures the capacitance component Current clamp: Measures current without physical connection Curve tracer: Applies swept signals to a device and allows display of the response Cos Phi Meter: Measures the power factor Distortionmeter: Measures the distortion added to a circuit Electricity meter

5. Multimeter - Wikipedia

   en.wikipedia.org/wiki/Multimeter

   Clamp meters clamp around a conductor carrying a current to measure without the need to connect the meter in series with the circuit, or make metallic contact at all. Those for AC measurement use the transformer principle; clamp-on meters to measure small current or direct current require more exotic sensors, such as; hall effect based systems ...

6. Current sensing - Wikipedia

   en.wikipedia.org/wiki/Current_sensing

   The measurement of current ranges from picoamps to tens of thousands of amperes. The selection of a current sensing method depends on requirements such as magnitude, accuracy, bandwidth, robustness, cost, isolation or size. The current value may be directly displayed by an instrument, or converted to digital form for use by a monitoring or ...

7. List of measuring instruments - Wikipedia

   en.wikipedia.org/wiki/List_of_measuring_instruments

   a spoon used to measure an amount of an ingredient, either liquid or dry megger: electrical insulation mercury barometer: Atmospheric pressure micrometer: small distances multimeter: electrical potential, resistance, and current nephoscope: to measure the speed and direction of clouds nephelometer: particle in a liquid odometer: distance ...

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9. Current meter - Wikipedia

   en.wikipedia.org/wiki/Current_meter

   Tilt current meters have the advantage over other methods of measuring current in that they are generally relatively low-cost instruments and the design and operation is relatively simple. [6] The low-cost of the instrument may allow researchers to use the meters in greater numbers (thereby increasing spatial density) and/or in locations where ...