voltage standard การใช้

• Voltage standard chips are typically fabricated on silicon or glass substrates.
• Some locomotives in Europe are capable of using four different voltage standards.
• One notable use was by Guildline Instruments, of Canada, in their Transvolt, model 9154B, saturated standard cell, which is an electrical voltage standard.
• Laboratory-grade Zener diode secondary solid-state voltage standards used in metrology can be constructed with a drift of about 1 part per million per year.
• I _ c is a function of the junction geometry, the temperature, and any residual magnetic field inside the magnetic shields that are used with voltage standard devices.
• Prior to the development of the Josephson junction voltage standard, the volt was maintained in national laboratories using specially constructed batteries called "'standard cells " '.
• To ensure that a DVM's accuracy is within the manufacturer's specified tolerances, it must be periodically calibrated against a voltage standard such as the Weston cell.
• Fig . 5 . ( a ) A series of Josephson junctions arranged to form a stripline and ( b ) the circuit of a typical Josephson voltage standard integrated circuit chip.
• The value of the " conventional " volt is now maintained by superconductive integrated circuits using the Josephson Effect to get a voltage to an accuracy of 1 parts per billion or better, the Josephson voltage standard.
• At HYPRES, the first company he founded 1983, many of the superconducting inventions became commercial products including the Picosecond Signal Processors, PSP 1000 and the PSP 750, the Primary Voltage Standard and many others.
• In December 2010, Asus launched the world's thinnest notebook, the Asus U36, with Intel processor voltage standard ( not low voltage ) Intel core i3 or i5 with a thickness of only 19 mm.
• Although the Josephson voltage standard ( JVS ) does not realize the SI definition of the volt, it provides a very stable reference voltage that can be reproduced anywhere without the need to transfer artifacts such as Weston cells.
• Working with closely with National Institute of Standards and Technology, HYPRES developed became the sole commercial supplier of both 1-volt and 10-volt primary voltage standard chips and systems, made with all refractory niobium ( Nb ) technology.
• Kelvin Varley dividers are therefore usually applied in conjunction with a null detector to compare their output voltage against a known voltage standard, e . g . a Weston cell ( which must also be used without drawing current from it ).
• If the assumption is made that the voltage reference is accurate ( to within the tolerances of the converter ) or that the voltage reference has been externally calibrated against a voltage standard, any error in the measurement would be a gain error in the converter.
• Another type of calibration requires external inputs of known quantities ( e . g ., voltage standards or precision resistance references ) and would typically be performed infrequently ( every year for equipment used in normal conditions, more often when being used in metrology applications ).
• "' Edward Weston "'( May 9, 1850  August 20, 1936 ) was an English-born American chemist noted for his achievements in electroplating and his development of the electrochemical cell, named the Weston cell, for the voltage standard.
• Although a low-voltage standard has yet to be finalized ( ), it is anticipated that low-voltage DDR4 will run at a voltage of 1.05 V, compared to DDR3's low-voltage standard ( DDR3L ) which requires 1.35 V to operate.
• Although a low-voltage standard has yet to be finalized ( ), it is anticipated that low-voltage DDR4 will run at a voltage of 1.05 V, compared to DDR3's low-voltage standard ( DDR3L ) which requires 1.35 V to operate.
• Note that the same types of appliance-side connectors are used with both 110 V and 230 V power cables, so care must be used when moving appliances between countries with different voltage standards & mdash; substituting a power cord that matches local power outlets will result in an incorrect voltage being applied to the appliance or equipment.