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DOE OSTI · 1799695

Acoustic MEMS Sensor Array for Quench Detection of CICC Superconducting Cables

Takayasu, Makoto
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Abstract

Here, a novel quench detection method using micro-electro-mechanical system (MEMS) sensor technology has been investigated in use for high temperature superconducting (HTS) conductors such REBCO tape cables. The sensor array along a superconducting cable, such as a cable-in-conduit-conductor (CICC), is installed in a cooling channel. It will allow sensitive and quick detection for a local quench of a superconducting cable. This work has confirmed that a quench of a single REBCO tape can be detected in liquid nitrogen by a MEMS piezoelectric microphone sensor. The quench detection design utilizing a MEMS sensor array method is discussed for the case of a toroidal field (TF) magnets of a fusion Tokamak device.

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75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITYCICCHTSMEMS microphoneMEMS sensorMEMS speakerREBCO.acoustic sensorcable-in-conduit-conductorquench detectionsuperconducting magnetsuperconducting power cable

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BibTeXRIS

Takayasu, Makoto. 2020-03-05. Acoustic MEMS Sensor Array for Quench Detection of CICC Superconducting Cables. https://doi.org/10.1109/tasc.2020.2978786

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