Caiafa, Gianni
(2018)
Induction-coil transducers for measuring transversal field harmonics in accelerator magnets.
[Tesi di dottorato]
| Tipologia del documento: |
Tesi di dottorato
|
| Lingua: |
English |
| Titolo: |
Induction-coil transducers for measuring transversal field harmonics in accelerator magnets |
| Autori: |
| Autore | Email |
|---|
| Caiafa, Gianni | caiafagianni@yahoo.it |
|
| Data: |
11 Dicembre 2018 |
| Numero di pagine: |
141 |
| Istituzione: |
Università degli Studi di Napoli Federico II |
| Dipartimento: |
Ingegneria Elettrica e delle Tecnologie dell'Informazione |
| Dottorato: |
Information technology and electrical engineering |
| Ciclo di dottorato: |
31 |
| Coordinatore del Corso di dottorato: |
| nome | email |
|---|
| Riccio, Daniele | daniele.riccio@unina.it |
|
| Tutor: |
| nome | email |
|---|
| Arpaia, Pasquale | [non definito] |
|
| Data: |
11 Dicembre 2018 |
| Numero di pagine: |
141 |
| Parole chiave: |
Magnetic Measurement, Induction-Coil Sensors, Pseudo-Multipoles, Local Field Distribution, Flexible Circuit Board, Iso-Perimetric Coil |
| Settori scientifico-disciplinari del MIUR: |
Area 09 - Ingegneria industriale e dell'informazione > ING-INF/07 - Misure elettriche e elettroniche |
[error in script]
[error in script]
| Depositato il: |
22 Gen 2019 22:05 |
| Ultima modifica: |
17 Giu 2020 07:40 |
| URI: |
http://www.fedoa.unina.it/id/eprint/12681 |
Abstract
The following thesis deals with the mathematical development, the numerical validation, the design, and the metrological characterization of an innovative sensor for magnetic measurements based on rotating coils.
The developed mathematical model, linking experimental data and the field description in the aperture of magnets for accelerator, was numerically validated using simulated data.
The validation results made it possible to check the correlation between measurements and the mathematical model itself.
Furthermore, the numerical validation allowed to satisfy the constraints for the design and manufacturing tolerances of the sensor.
The sensor that is required to perform local field distribution measurements along the magnet axis, must be not sensitive to the $z$-field component (namely to the field in the direction of beam travelling in the particle accelerator magnet).
For this reason, the coil design is based on a certain number of loops placed on the same radius. This particular geometry has been called "Iso-perimetric".
The sensor production, the transducer design, an innovative methodology for the sensitivity coefficients calculations and for the calibration procedure were carried out.
Finally, the experimental results of the proof of principle of the first prototype, the design of the second prototype, and the measurements results are reported.
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