地下金屬管線管徑的探測
DETECTION OF UNDERGROUND METAL PIPE S DIAMETER
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摘要: 用現(xiàn)有的一臺電磁感應(yīng)式地下金屬管線探測儀在現(xiàn)場進(jìn)行人工數(shù)據(jù)采樣,然后擬合出一個地下金屬單管線二次場分布的經(jīng)驗公式,再用該分布函數(shù)曲線半寬度參數(shù),伴以地下全屬管線埋深的探測,便可探測出管徑值,探測誤差約為實際管徑的10％。
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關(guān)鍵詞:
- 探測; 擬合; 正態(tài)分布; 半寬度
Abstract: 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. -
Slavic I A. Nucl. Instrum. Methods. 1976, 134(2):285-289.[2]Yule H P. Nucl. Instrum. Methods, 1967, 54(1):61-69.[3]Jackson J D. Classical Electrodynamics. USA: John Wiley [4]Sons press company,1975,300-450. -
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