Development of New Strain Gage for High-Pressure Hydrogen Gas Use
Development of New Strain Gage for High-Pressure Hydrogen Gas Use
复制标题
高压氢气用新型应变计的开发
DOI：
10.1007/s11340-013-9816-4
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发表时间：
2014
影响因子：
2.4
通讯作者：
S. Matsuoka
中科院分区：
文献类型：
--
作者：
T. Matsuo;J. Yamabe;H. Furukawa;K. Seki;K. Shimizu;Shogo Watanabe;S. Matsuoka
为了寻找一种高性能的高压氢气用应变片，在卸载条件下，测量了两种常规应变片（Cu-Ni和Ni-Cr）和一种新选用的高压氢气用应变片（Fe-Cr-Al）在90 MPa氢气和氮气中的输出变化。Cu-Ni和Ni-Cr应变片在氢气中的输出变化远大于在氮气中的输出变化，而Fe-Cr-Al应变片在两种气体中的输出变化几乎相同。这些结果表明，Fe-Cr-Al应变片作为高压氢气用应变片是上级的。大量的氢进入Cu-Ni和Ni-Cr箔，并且这些箔的电阻由于氢暴露而显著改变，而Fe-Cr-Al箔几乎没有氢进入，并且其电阻没有改变。由于氢气进入导致的箔的这些电阻变化与氢气中的压力计输出变化一致。
The output changes of two conventional strain gages (Cu–Ni and Ni–Cr) and a newly-selected strain gage for high-pressure hydrogen gas use (Fe–Cr–Al) in 90 MPa hydrogen and nitrogen gases were measured under unloading conditions to find a high-performance strain gage for high-pressure hydrogen gas use. The changes in the outputs of the Cu–Ni and Ni–Cr gages in hydrogen gas were much larger than those in nitrogen gas, and the Fe–Cr–Al gage showed almost the same output changes in both gases. These results imply that the Fe–Cr–Al gage is superior to the others as a strain gage for high-pressure hydrogen gas use. A large amount of hydrogen entered the Cu–Ni and Ni–Cr foils, and the electrical resistances of these foils were significantly changed by hydrogen exposure, whereas almost no hydrogen entered the Fe–Cr–Al foil, and its electrical resistance was not changed. These resistance changes of the foils as a result of hydrogen entry were consistent with the gage output changes in hydrogen gas.