Electrical Measurements
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Electrical Measurements
Ammeter and Voltmeter on a power supply

Electrical measurements are the methods, devices and calculations used to measure electrical quantities. Measurement of electrical quantities may be done to measure electrical parameters of a system. Using transducers, physical properties such as temperature, pressure, flow, force, and many others can be converted into electrical signals, which can then be conveniently measured and recorded. High-precision laboratory measurements of electrical quantities are used in experiments to determine fundamental physical properties such as the charge of the electron or the speed of light, and in the definition of the units for electrical measurements, with precision in some cases on the order of a few parts per million. Less precise measurements are required every day in industrial practice. Electrical measurements are a branch of the science of metrology.

Measurable independent and semi-independent electrical quantities comprise:

Measurable dependent electrical quantities comprise:

References

Further reading

  • Graeme Gooday The morals of measurement: accuracy, irony, and trust in late Victorian electrical practice , Cambridge University Press, 2004 ISBN 0-521-43098-4



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