Sources of Uncertainty in Standard Resistors

October 27, 2020 Office

by Jeff Gust Volume 7:5, Sep-Oct 2000 As metrologists are acutely aware, when one transfers a measured value such as resistance, they also transfer a measurement uncertainty that is associated with the calibration of the […]

Sampling with a 3458A Type DMM

October 23, 2020 Office

by Rado Lapuh There is often a need in metrology to use a high precision sampling digital multi-meters in order to look at the amplitude, frequency and phase of a sinewave signal in detail.  But […]

Recent Advances in Oscilloscope Capabilities

October 22, 2020 Office

by Kimberly M. Overhage Volume 3:3, May-Jun 1996 The latest measurement capabilities for oscilloscopes include higher bandwidths and real time display. Capturing intermittent signals, a persistent measurement problem, has finally been solved by higher update […]

Quantum-based impedance bridges – PTB.de

September 25, 2020 Office

PTB News 3.2020 – Within the scope of a European metrology research project, PTB is investigating the utilizability of novel quantum Hall resistance standards based on graphene for impedance metrology. The activities aim to develop […]

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