مرکز منطقه ای اطلاع رساني علوم و فناوري - Application of <formula formulatype="inline"> <img src="/images/tex/650.gif" alt="{\\rm MgB}_{2}"> </formula> Wire to Liquid Hydrogen Level Sensor—External-Heating-Type <newline/><formula formulatype="inline"> <img src="/images/tex/650.gif" alt="{\

Title :

Application of ${\\rm MgB}_{2}$ Wire to Liquid Hydrogen Level Sensor—External-Heating-Type ${\</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Author : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>Takeda, Minoru ; Matsuno, Yu ; Kodama, Itaru ; Kumakura, Hiroaki ; Kazama, Chikara</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Author_Institution : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>Grad. Sch. of Maritime Sci., Kobe Univ., Kobe, Japan</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Volume : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>19</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Issue : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>3</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>fYear : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>2009</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>fDate : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>6/1/2009 12:00:00 AM</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Firstpage : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>764</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Lastpage : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>767</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Abstract : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>A superconducting magnesium diboride (MgB<sub>2</sub>) level sensor for liquid hydrogen has been timely noted as a new sensor from a viewpoint of the worldwide storage and transport of large quantities of hydrogen. The external-heating-type level sensors (200 and 800 mm long) based on MgB<sub>2</sub> wires are fabricated by an in situ method, and their level-detecting characteristics are studied in comparison with the actual liquid level using the liquid hydrogen experiment facility (LHEF). It becomes evident that an external-heating-type MgB<sub>2</sub> level sensor has a high linearity, a small measurement error, and a good reproducibility even in the pressure range of up to 200 kPaG despite the evaporation loss caused by the heater used.</div> </div> <div class='row'> <div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Keywords : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>boron alloys; level measurement; level meters; magnesium alloys; measurement errors; superconducting materials; wires; MgB<sub>2</sub>; external heating type level sensor; level detecting characteristics; liquid hydrogen experiment facility; liquid hydrogen level sensor; measurement error; superconducting magnesium diboride; wire; <formula formulatype=$ ${rm MgB}_{2}$ wire; Level sensor; liquid hydrogen;