Quantum Hall effect metrology system. Apparatus (right) being used for a measuring system based on the quantum Hall effect (QHE). This system is used to determine standards for measuring electrical resistance. The equipment is a small table-top cryogen-free quantum Hall system based on a graphene-on-silicon-carbide system. It contains a small 5-Tesla superconducting magnet at a temperature of around 2.5 Kelvin. Photographed in 2014, at the National Physical Laboratory, Teddington, UK.
| px | px | dpi | = | cm | x | cm | = | MB |
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TOP15985231
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達志影像
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RM
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201421stcenturyapparatusbritainbritishcarbidecryogenfreeelectricalresistanceelectronicsengineeringenglandenglishequipmenteuropeeuropeangraphenelablaboratorymachinemeasurementsmeasuringmetrologynationalphysicallaboratoryno-onenobodynplphysicsqhequantumquantumhalleffectquantummechanicsquantumphysicsresearchsiliconstandardstandardssuperconductingmagnettechnologicaltechnologyteddingtonukunitedkingdom
201421stapparatusbritainbritishcarbidecenturycryogeneffectelectricalelectronicsengineeringenglandenglishequipmenteuropeeuropeanfreegraphenehallkingdomlablaboratorylaboratorymachinemagnetmeasurementsmeasuringmechanicsmetrologynationalno-onenobodynplphysicalphysicsphysicsqhequantumquantumquantumquantumresearchresistancesiliconstandardstandardssuperconductingtechnologicaltechnologyteddingtonukunited
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