不定周长轮电缆测长仪

MEASURING LENGTH'S INSTRUMENT OF CABLE WITH INDEFINITE CIRCULAR WHEEL

利用随轮运动的光栏宽度及光拦的挡光时间测量轮子的角速度,间接计算缆线长度,解决了电缆测长仪中对轮周长标定的困难和轮与缆线间打滑的问题。光栏的宽度可准确标定,挡光时间由单片机测量。

Using a width of rectangle light shielded with moving wheel and rectangle light shield' s time of keeping off light to measure angular velocity, measuring indirectly a length of cable, solving difficulty in measuring length' s instrument of mark circumference of wheel and the wheel' s sliding problem of branch cable. The rectangle light is shield can be marked precisely, time of keeping off light is measured by single chip Microcomputer.