摘要
用现有的一台电磁感应式地下金属管线探测仪在现场进行人工数据采样,然后拟合出一个地下金属单管线二次场分布的经验公式,再用该分布函数曲线半宽度参数,伴以地下全属管线埋深的探测,便可探测出管径值,探测误差约为实际管径的±10％。
Data are sampled manually using a electromagnetic induction type underground metal pipe detectror. After that, an empirical formula for a metal pipe's second field distribution function is obtained by fitting the data. On the other band, the depth of underground metal pipe can be detected by use of the detector. Then, the pipe's diameter can be calculated by use of the half width of the distribution func-tion's curve and the depth. The error of the result is±10% of the pipe's diameter.
关键词
地下金属管道
管径
探测
探测仪
Detection, Fitting, Normal distribution, Half width
