摘要
利用CCD光电测量系统快速方便地精确测量了金属丝(钢丝)的杨式弹性模量,结果为1.982×1011 N/m2,不确定度为0.113×10-11 N/m2,扩展不确定度为0.226×10-11 N/m2.
The Young＇s elastic modulus of the wire （steel wire） is quickly and easily and accurately measured by CCD photo-electric measuring system. The measurement result of the Young＇s modulus is 1.982×10^11 N/m^2,the uncertainty of measurement result is 0.113×10^-11 N/m^2, the expanded uncertainty is 0.226×10^-11 N/m^2.
出处
《河南科学》
2009年第9期1050-1053,共4页
Henan Science
基金
国家自然科学基金(40474025
40174007)
安阳工学院科研基金资助
