Characterization of PXI-Based Generators for Impedance Measurement Setups

Kozioł, M.; Kaczmarek, J.; Rybski, Ryszard

doi:10.1109/cpem.2018.8500928

Cited by 6 publications

(7 citation statements)

References 2 publications

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“…The voltage sources from E 1 to E 5 and E ref represent the output channels of a 7-channel polyphase sinewave synthesizer (DSS2A-INRIM) designed and manufactured by the University of Zielona Góra (UZG) [37], [39]. The synthesizer is composed of a digital waveform instrument (National Instruments PXI-6541), and a DAC and analog output unit.…”

Section: ) Synthesizermentioning

confidence: 99%

Primary Realization of Inductance and Capacitance Scales With a Fully Digital Bridge

Marzano

D'Elia

Ortolano

et al. 2022

IEEE Trans. Instrum. Meas.

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This paper describes an automated electronic fully-digital bridge for the comparison of four-terminal-pair impedance standards in the audio frequency range. The bridge relative accuracy, which is on the order of 10 −6 , makes it suitable as a reference bridge for the realization of primary scales of inductance and capacitance in metrology institutes and calibration laboratories. The performances of this bridge were validated by comparing the results of the calibrations of inductance and capacitance standards with those obtained from an existing analog reference system based on the three-voltage method. The paper also reports the results of this validation.

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Section: ) Synthesizermentioning

confidence: 99%

Primary Realization of Inductance and Capacitance Scales With a Fully Digital Bridge

Marzano

D'Elia

Ortolano

et al. 2022

IEEE Trans. Instrum. Meas.

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“…[22]) or on synthesizers with variable sample rate (e.g. [23]). The former allow fine and agile frequency control, and phase continuous operation; the latter allow better control and predictability of the spectrum of the generated signal (see [24] for more details on digital waveform generators).…”

Section: Generating Impedance Bridgesmentioning

confidence: 99%

A Comprehensive Analysis of Error Sources in Electronic Fully Digital Impedance Bridges

Ortolano

Marzano

D'Elia

et al. 2021

IEEE Trans. Instrum. Meas.

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Fully-digital impedance bridges are emerging as measuring instruments for primary electrical impedance metrology and the realization of impedance units and scales. This paper presents a comprehensive analysis of electronic fully-digital impedance bridges, for both generating (based on digital-toanalog converters) and digitizing (based on analog-to-digital converters) bridges. The sources of measurement error are analyzed in detail and expressed by explicit mathematical formulae ready to be applied to the specific bridge and measurement case of interest. The same can be employed also as a basis to optimize the design and the operating parameters of digital bridges, and to evaluate the measurement uncertainty. A practical application of the analysis to the digital bridges developed and measurements performed in the framework of an international research project is presented.

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“…Moreover, the bridge was balanced manually by the modification of the reference resistor, which due to the complex balancing procedure was of limited efficiency. In this setup we obtained the resolution of the temperature change measurements of 10 mK [11,12].…”

Section: Introductionmentioning

confidence: 99%

Transformer bridge-based metrological unit for scanning thermal microscopy with resistive nanoprobes

Pruchnik,

Smagowski,

Badura

et al. 2024

Meas. Sci. Technol.

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Scanning probe microscopy (SPM) is a broad family of diagnostic methods. Common restraint of SPM is only surficial interaction with specimen, especially troublesome in case of complex volumetric systems, e.g. microbial or microelectronic. Scanning thermal microscopy (SThM) overcomes that constraint, since thermal information is collected from broader space. We present transformer bridge-based setup for resistive nanoprobe-based microscopy. With low-frequency (approx. 1 kHz) detection signal bridge resolution becomes independent on parasitic capacitances present in the measurement setup. We present characterization of the setup and metrological description – with resolution of the system 2 mK with sensitivity as low as 5 mV/K. Transformer bridge setup brings galvanic separation, enabling measurements in various environments, pursued for purposes of molecular biology. We present results SThM measurement results of high-thermal contrast sample of carbon fibers in an epoxy resin. Finally, we analyze influence of thermal imaging on topography imaging in terms of information channel capacity (ICC). We state that transformer bridge-based SThM system is a fully functional design along with low driving frequencies and resistive thermal nanoprobes by Kelvin Nanotechnology.

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Characterization of PXI-Based Generators for Impedance Measurement Setups

Cited by 6 publications

References 2 publications

Primary Realization of Inductance and Capacitance Scales With a Fully Digital Bridge

Primary Realization of Inductance and Capacitance Scales With a Fully Digital Bridge

A Comprehensive Analysis of Error Sources in Electronic Fully Digital Impedance Bridges

Transformer bridge-based metrological unit for scanning thermal microscopy with resistive nanoprobes

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