Space- and time-resolved resistive measurements of liquid metal wall thickness

作者：Mirhoseini S M H; Volpe F A^*

来源：Review of Scientific Instruments, 2016, 87(11): 11D427.

DOI：10.1063/1.4960754

In a fusion reactor internally coated with liquid metal, it will be important to diagnose the thickness of the liquid at various locations in the vessel, as a function of time, and possibly respond to counteract undesired bulging or depletion. The electrical conductance between electrodes immersed in the liquid metal can be used as a simple proxy for the local thickness. Here a matrix of electrodes is shown to provide spatially and temporally resolved measurements of liquid metal thickness in the absence of plasma. First a theory is developed for m x n electrodes, and then it is experimentally demonstrated for 3 x 1 electrodes, as the liquid stands still or is agitated by means of a shaker. The experiments were carried out with Galinstan, but are easily extended to lithium or other liquid metals. Published by AIP Publishing.

• 出版日期2016-11