【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.更多还原

【Abstract】 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 1.982×1011 N/m2,the uncertainty of measurement result is 0.113×10-11 N/m2,the expanded uncertainty is 0.226×10-11 N/m2.更多还原