Paolo Durandetto, Danilo Serazio, Andrea Sosso
Quantum voltage standards based on ac Josephson effect are in use in metrology since just a few years after the discovery of the physical effect. The role of quantum standards is now crucial following the SI redefinition in 2019: electrical units are now defined in function of the fundamental constants e (elementary charge) and h (Planck’s constant). The extremely low uncertainty in dc measurements, that can be below 1 nV/V at 10 V, is stimulating research to extend application to ac and signals arbitrarily changing with time. Approaching the dc accuracy is challenging, however. The two main...
TC4 Symposium 2022
· TC4
· 2022
· 10.21014/tc4-2022.04
· Download
Vitor Cabral, Alessandro Cultrera, Shaochuan Chen Chen, João Pereira, Luís Ribeiro, Isabel Godinho, Luca Boarino, Natascia Deo Leo, Luca Callegaro, Susana Freitas, Ilia Valov, Gianluca Milano
The EMPIR project 20FUN06 MEMQuD “Memristive devices as quantum standard for nanometrology” has as one of its fundamental goals the development of technical capability and scientific knowledge for the implementation of a quantum resistance standard based on memristive devices characterized by high scalability down to the nanometer scale, CMOS compatibility and working in air at room temperature. In this work it is presented an overview of the project and highlighted relevant characteristics and working principles of memristive devices, applications as well as the last revision of the...
TC4 Symposium 2022
· TC4
· 2022
· 10.21014/tc4-2022.03
· Download
Ngoc Thanh Mai Tran, Jaesung Park, Dong-Hun Chae
Direct comparison of quantum Hall resistance in the same or different materials requires demanding experimental resources, such as two separate cryostats or a specially designed dual-socket probe operating far below the temperature of liquid helium. Here we experimentally demonstrate an efficient direct comparison of quantum Hall resistance in graphene and gallium arsenide/aluminium gallium arsenide heterostructure in liquid helium at 4.2 K with a standard probe from the practical point of view. To perform the direct comparison with one probe, we stacked two Hall devices with a printed...
TC4 Symposium 2022
· TC4
· 2022
· 10.21014/tc4-2022.02
· Download
Bruno Trinchera, Danilo Serazio, Paolo Durandetto, Luca Oberto, Luca Fasolo
The paper deals with recent progress at INRiM towards the setting up and preliminary characterization of a novel programmable Josephson voltage standard (PJVS) operating in a small liquid helium dewar. The PJVS setup is based on a 1-V superconductor-normal metal-superconductor (SNS) binary-divided array of 8192 Josephson junctions. To ensure proper operating conditions of the PJVS chip a custom short cryoprobe was designed, built and successfully tested. The overall system is being developed in the framework of EMPIR project 19RPT01-QuantumPower. The goal is to establish a new quantum...
TC4 Symposium 2022
· TC4
· 2022
· 10.21014/tc4-2022.01
· Download
Khaled M. Ahmed, Abdullah S. AlOsaimi, Khalid M. Amin
Nowadays, digital solutions are dominant in almost all industry related activities and applications, especially in the metrology domain. Digital Calibration Certificates (DCCs) will soon replace both paper and electronic calibration certificates. This is due to the fact that electronic files can be communicated instantly and securely to the customer and are machine readable. However, DCCs require a digital security and software infrastructure to fulfill the current ‘analogue’ processes of authentication and validation that secures traceability of the measurements. In this work, we present...
M4Dconf2022
· TC6
· 2022
· 10.21014/tc6-2022.044
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Anil Cetinkaya, M. Cagri Kaya, Erkan Danaci, Halit Oguztuzun
Providing automated and networked solutions on the cloud will remarkably facilitate ongoing digitalization efforts in Metrology and the calibration industry. The AutoRFPower application was developed to automate the RF power measurement process and uncertainty calculations. This study presents our ongoing research on moving this application to a cloud environment and adapting it to perform power sensor calibrations. The cloud-based application initiates communication with calibration equipment, transfers test points to the client computer to perform measurement activities locally, and fi...
M4Dconf2022
· TC6
· 2022
· 10.21014/tc6-2022.043
· Download
Sascha Eichstädt, Daniel Hutzschenreuter, Jens Niederhausen, Julia Neumann
Digital transformation is challenging and changing the basic pillars of the quality infrastructure – metrology, standardization, accreditation, conformity assessment and market surveillance. The individual organizations are thus preparing and implementing digital transformation strategies to address the novel challenges and to make use of the new opportunities and possibilities. However, most of these developments still have a human- centric, document-based point of view. In this contribution we outline how the individual developments can be interconnected in the future and what a...
M4Dconf2022
· TC6
· 2022
· 10.21014/tc6-2022.042
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Jörg Gebhardt, Guruprased Sosale, Patric Ackermann
Non-invasive temperature measurements are described as a means for verifi cation of standard invasive temperature sensors in the process industry. The work is motivated by the need for more controlled measurement quality in digitalization of process industries. The concept, relevant measurements and a verifi cation example are pre- sented, with a discussion of the implications.
M4Dconf2022
· TC6
· 2022
· 10.21014/tc6-2022.041
· Download
Tom Moses Rubin, Thomas Bock, Matthias Bernien
The DCC enables an updatable and thus improvable uncertainty budget. A direct benefit of the updatable DCC (UDCC) for the device under test (DUT) and thus for the end users would be the transfer of improvements with respect to the uncertainties of the primary standards. An illustrative application example is the new realization of the Pascal via quantum-based methods, such as primary standards using Fabry-Perot (FP) refractometry. This novel realization is based on traceability by means of frequency measurements and it is expected that the uncertainties of the relevant fundamental...
M4Dconf2022
· TC6
· 2022
· 10.21014/tc6-2022.040
· Download
Catherine Cooksey, James Fedchak, Robert Hanisch, John Quintavalle, Manmohan Moondra, Gregory Cala, Damian Lauria, Raymond Plante, Benjamin Long
Early in 2022 NIST embarked on a pilot project to produce digital calibration reports and certificates of analysis for reference materials. The goal of the project was to produce a few examples of each for the purpose of assessing the scope and challenges of digital transformation for these measurement services. This presentation is focused on the digital calibration reports. Our aims for this portion of the pilot project are to generate a digital calibration report from calibration data, customer metadata, and other data and metadata as needed; to generate a human readable report from the...
M4Dconf2022
· TC6
· 2022
· 10.21014/tc6-2022.039
· Download