Search Results - "CALLEGARO, L"

Experimental Characterization of RF-SQUIDs Based Josephson Traveling Wave Parametric Amplifier Exploiting Resonant Phase Matching Scheme by Fasolo, L., Ahrens, F., Avallone, G., Barone, C., Borghesi, M., Callegaro, L., Carapella, G., Caricato, A. P., Carusotto, I., Cian, A., D'Elia, A., Gioacchino, D. Di, Falferi, P., Faverzani, M., Ferri, E., Filatrella, G., Gatti, C., Giubertoni, D., Granata, V., Guarcello, C., Labranca, D., Leo, A., Ligi, C., Livreri, P., Maccarrone, G., Mantegazzini, F., Margesin, B., Maruccio, G., Mezzena, R., Monteduro, A. G., Moretti, R., Nucciotti, A., Oberto, L., Origo, L., Pagano, S., Piedjou, A. S., Piersanti, L., Rettaroli, A., Rizzato, S., Tocci, S., Vinante, A., Zannoni, M., Giachero, A., Enrico, E.

“…This study presents recent advancements in Josephson Traveling Wave Parametric Amplifiers (JTWPAs) developed and tested at Istituto Nazionale di Ricerca…”
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Development of KI-TWPAs for the DARTWARS Project by Ahrens, F., Ferri, E., Avallone, G., Barone, C., Borghesi, M., Callegaro, L., Carapella, G., Caricato, A. P., Carusotto, I., Cian, A., D'Elia, A., Gioacchino, D. Di, Enrico, E., Falferi, P., Fasolo, L., Faverzani, M., Filatrella, G., Gatti, C., Giachero, A., Giubertoni, D., Granata, V., Guarcello, C., Labranca, D., Leo, A., Ligi, C., Maccarrone, G., Mantegazzini, F., Margesin, B., Maruccio, G., Mezzena, R., Monteduro, A. G., Moretti, R., Nucciotti, A., Oberto, L., Origo, L., Pagano, S., Piedjou, A. S., Piersanti, L., Rettaroli, A., Rizzato, S., Tocci, S., Vinante, A., Zannoni, M.

“…Noise at the quantum limit over a broad bandwidth is a fundamental requirement for future cryogenic experiments for neutrino mass measurements, dark matter…”
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Broadband Parametric Amplification in DARTWARS by Faverzani, M., Campana, P., Carobene, R., Gobbo, M., Ahrens, F., Avallone, G., Barone, C., Borghesi, M., Capelli, S., Carapella, G., Caricato, A. P., Callegaro, L., Carusotto, I., Celotto, A., Cian, A., D’Elia, A., Di Gioacchino, D., Enrico, E., Falferi, P., Fasolo, L., Ferri, E., Filatrella, G., Gatti, C., Giubertoni, D., Granata, V., Guarcello, C., Irace, A., Labranca, D., Leo, A., Ligi, C., Maccarrone, G., Mantegazzini, F., Margesin, B., Maruccio, G., Mezzena, R., Monteduro, A. G., Moretti, R., Nucciotti, A., Oberto, L., Origo, L., Pagano, S., Piedjou Komnang, A. S., Piersanti, L., Rettaroli, A., Rizzato, S., Tocci, S., Vinante, A., Zannoni, M., Giachero, A.

“…Superconducting parametric amplifiers offer the capability to amplify feeble signals with extremely low levels of added noise, potentially reaching…”
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On strategies for automatic bridge balancing by Callegaro, L.

“…Automatic balancing of coaxial AC impedance bridges asks for simple, robust and efficient strategies suitable to be easily implemented on PC controllers. The…”
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Epilithic diatoms as indicators of water quality in the Gravataí river, Rio Grande do Sul, Brazil by SALOMONI, S. E, ROCHA, O, CALLEGARO, V. L, LOBO, E. A

“…The potential use of epilithic diatoms as indicators of organic pollution was evaluated in Gravataí River, RS, (latitude 29°45'-30°12' S; longitude…”
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Josephson-Voltage-Standard-Locked Sine Wave Synthesizer: Margin Evaluation and Stability by Jeanneret, B., Overney, F., Callegaro, L., Mortara, A., Rufenacht, A.

“…This paper describes a Josephson-voltage-standard-locked synthesizer where a commercial digital-to-analog converter is used as a sine wave generator. The…”
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A setup for the performance characterization and traceable efficiency measurement of magnetostrictive harvesters by Zucca, M., Callegaro, L.

“…This paper addresses the assessment of the performance and efficiency of magnetostrictive harvesters. A suitable test rig is presented, and its characteristics…”
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Quadrature Bridge for R- C Comparisons Based on Polyphase Digital Synthesis by Trinchera, B., Callegaro, L., D'Elia, V.

“…A coaxial quadrature bridge based on digital synthesis has been developed. The bridge compares two resistance standards (having nominal resistance R) with two…”
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A Current Source for Picoammeter Calibration by Callegaro, L., D'Elia, V., Trinchera, B.

“…A current source, which is to be employed in the calibration of low-current meters (picoammeters and electrometers), is presented here. The output current…”
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Techniques for Traceable Measurements of Small Currents by Callegaro, L., D'Elia, V., Capra, P.P., Sosso, A.

“…The Italian national standard of direct current is being extended down to the femtoampere range. Two current sources have been developed. The first one,…”
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A precise two-channel digitally synthesized AC voltage source for impedance metrology by Nissila, J., Ojasalo, K., Kampik, M., Kaasalainen, J., Maisi, V., Casserly, M., Overney, F., Christensen, A., Callegaro, L., D'Elia, V., Tran, N. T. M., Pourdanesh, F., Ortolano, M., Kim, D. B., Penttila, J., Roschier, L.

“…A two-channel AC voltage source based on digital synthesis is reported. We present measurement results of some of the key properties at 1 kHz with applications…”
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Four-Terminal-Pair Inductance Comparison Between INRIM and CTU by Callegaro, L., D'Elia, V., Bohacek, J.

“…For 40 years, it has been known that a four-terminal-pair (4TP) definition achieves the highest accuracy in impedance measurement. While, for ac resistors and…”
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Short Communication: Improvements to INRIM Johnson Noise Thermometer by Callegaro, L., D’Elia, V., Manta, F., Ortolano, M., Pisani, M.

“…This paper presents a progress report for the Johnson noise thermometry experiment which is under development at the Istituto Nazionale di Ricerca Metrologica…”
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Automated system for inductance realization traceable to AC resistance with a three-voltmeter method by Callegaro, L., D'Elia, V.

“…An automatic system for the comparison of unlike impedances in the range 1 /spl Omega/-10 k/spl Omega/, based on the three-voltmeter method, has been…”
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10-nF capacitance transfer standard by Callegaro, L., D'Elia, V., Serazio, D.

“…New dielectric capacitance standards with a nominal value of 10 nF, suitable to be employed in the reproduction of the farad unit starting from the quantum…”
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Impedance comparison at power frequency by asynchronous sampling by Callegaro, L, D'Elia, V, Gasparotto, E

“…We present a measurement setup for the comparison of four-terminal impedances at power frequency, based on synchronous sampling of the voltage drops on the…”
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Critical current hysteresis in a ferromagnet–superconductor device by Callegaro, L, Ricci, S, Vavassori, P

“…We investigated the electrical properties of a thin film device composed of a superconducting Nb channel (5μm wide) and a ferromagnetic superimposed structure…”
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Precision impedance measurements by the three-voltage method with a novel high-stability multiphase DDS generator by Callegaro, L., Galzerano, G., Svelto, C.

“…The system for the intercomparison of unlike impedances of the Istituto Elettrotecnico Nazionale Galileo Ferraris, based on the three-voltmeter method and…”
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Voltage traceability of Johnson noise thermometry by ac-dc transfer method by Manta, F, Callegaro, L, Pisani, M, Ortolano, M, D'Elia, V

“…The absolute Johnson noise thermometer (JNT) being developed at INRIM traces temperature measurements to electrical units. A pseudorandom noise signal is…”
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Correlation method errors in Johnson noise thermometry by Callegaro, L, Pisani, M, Ortolano, M, D'Elia, V, Manta, F

“…The correlation method is used in Johnson noise thermometry to reject noise added by the amplifiers employed. The rejection is not perfect and a systematic…”
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