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Promoting the Professional Excellence of Engineers and Scientists in Measurement and Control
Applying Electrical Capacitance Tomography to Mass Flowrate Measurement in Multiphase Flows
Electrical capacitance tomography has a well-established reputation as a research tool and has been used in a number of industrial applications including dry solids flows, gas–liquid flows, and wet gas flows.
To read more click here weighing without touching
To start at the end (!) we can definitively pronounce a metre to be as long as the distance travelled by light in a vacuum in 1/299,792,458 of a second. This is the current definition of the metre as established in 1983. As a standard, it has the particular virtue of not being identified in terms of an artefact (a manufactured exemplar), but rather in terms of universal constants of nature.
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This paper presents a simple and inexpensive powerless electrical insulated voltage measuring sensor using optical couplers for AC and DC voltage measurement, by harvesting the optical photovoltaic energy from a P–N collector–base junction in an opto-insulator to generate an output voltage proportional to the voltage input.
To read more click here Powerless electrical insulated voltage measuring sensor