第2楼2005/08/24
我试过用游标卡尺来测量,readability0.01mm.
L1=63.50mm
L2=63.00mm
W1=119.28mm
W2=119.58mm
suppose to be a ideal rectangle, then
Amin=7514.64mm2
Amax=7593.33mm2
Difference : 78.69mm2
I also ever tried the DVM with image pro. plus, which give the A=7628.109mm2 bigger than Amin and Amax by vernier caliper.
从以上的试验看来好像用光学显微镜测量面积也并不太精准啊