Standard for Voltage Unit: Development of National Standard for Voltage Unit Based on SolidState References,Used

Standard for Voltage Unit: Development of National Standard for Voltage Unit Based on SolidState References,Used

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SKU: DADAX3838357396
Brand: LAP Lambert Academic Publishing
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Many national metrology institutes (NMIs) employ the Josephson effect for maintenance of the representation of the voltage unit. The Josephson effect voltage standard (JVS) is the most stable and reproducible representation of the volt. In smaller national laboratories the voltage standards are frequently maintained in electrochemical cells or solidstate references, socalled secondary standards, which are less expensive for establishment and maintenance. The measurement uncertainty (k=2) of the voltage standards maintained in electronic references is typically less than 1 V/V. This can be achieved by maintenance of the group of voltage standards, whose outputs are regularly compared to the average of the whole group.

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