Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6743329 | Fusion Engineering and Design | 2018 | 5 Pages |
Abstract
Several design variants of chopper-based digital signal integrators have been tested to evaluate the optimal solution to achieve the ITER magnetics diagnostic requirements. A maximum flux-equivalent drift of 500â¯Î¼ V.s/hour is one of the key ITER magnetics diagnostic constraints for the integrators. The flux drift must be below the specified limit whilst the device satisfies other stringent specifications such as, 500â¯V galvanic isolation, 14-bit ENOB and environment magnetic field tolerance up to 10â¯mT. This paper presents the results of some of the tests performed on the integrator prototypes developed. These include tests to verify the integrator drift during long experiments when subjected to different conditions, e.g., imposition of a common mode voltage and input signals with a frequency spectrum that challenges the design limits.
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Authors
Antonio J.N. Batista, Graham Naylor, Llorenç Capellà , Andre Neto, Adam Stephen, Nicoletta Petrella, Stephanie Hall, Jorge Sousa, Bernardo Carvalho, Filippo Sartori, Roberto Campagnolo, Isidro Bas, Bruno Gonçalves, Shakeib Arshad, George Vayakis,