Original document(16 pages)  中文版
    An automatic test method includes drawing graphite line on concrete tested piece in order to utilize property of graphite resistance rate being much lower than resistance of nonconductor test piece to make tested area a resistance element with lowered resistance, using wire to connect graphite line, timing/gating device, digital universal meter and computer in sequence to form an automatic tester for automatically testing out occurence time of crack on concrete or on someother nonconductor materials.
Application Number
申请号		 200410061493 Application Date
申请日		 2004.12.31
Title 名称 Automatic testing method, apparatus and use for slit appear time
Publication Number
公开号		 1645119 Publication Date
公开日		 2005.07.27
Approval Pub. Date Granted Pub. Date
International Classification 分类号 G01N27/04,G01N33/38,G06F17/00
Applicant(s) Name
申请人		 Fuzhou Univ.
Address 地址 350002
Inventor(s) Name 发明人 Zheng Jianlan, Luo Surong
Attorney & Agent 代理人 ding xiuli

  
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