Designing a Magnetic Measurement Data Acquisition and Control System with Reuse in Mind: A Rotating Coil System Example
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by
J. M. Nogiec, P. Akella, G. Chlachidze, J. DiMarco, M. Tartaglia, P. Thompson, K. Trombly-Freytag, D. Walbridge
2021
Abstract
Accelerator magnet test facilities frequently need to measure different
magnets on differently equipped test stands and with different instrumentation.
Designing a modular and highly reusable system that combines flexibility
built-in at the architectural level as well as on the component level addresses
this need. Specification of the backbone of the system, with the interfaces and
dataflow for software components and core hardware modules, serves as a basis
for building such a system. The design process and implementation of an
extensible magnetic measurement data acquisition and control system are
described, including techniques for maximizing the reuse of software. The
discussion is supported by showing the application of this methodology to
constructing two dissimilar systems for rotating coil measurements, both based
on the same architecture and sharing core hardware modules and many software
components. The first system is for production testing 10 m long
cryo-assemblies containing two MQXFA quadrupole magnets for the high-luminosity
upgrade of the Large Hadron Collider and the second for testing IQC
conventional quadrupole magnets in support of the accelerator system at
Fermilab.
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