发明名称 Method and device for measuring in situ the distance between two specific elements in a tubular pipe
摘要 Method for measuring the gap separating a vault of at least one end fitting and a given element of one end of a thermal part of a pipe, comprising; moving an autonomous measuring detector inside the said pipe, carrying out at least one series of measurements during the movement of the detector in the end fitting, the measuring comprising detecting in real time, the passage of the consecutive transitions between the vault of the end of the terminal part of the pipe, triggering the measurements for a predetermined time between the detections of the transitions, storing the said measurements in the form of signals in at least one memory and processing the stored signals in order to determine the gap (D) and separating two consecutive transitions. The device for measuring includes two eddy current detectors on a support wound through the pipe and a memory for the detected signals and a processing circuit for processing the signals in memory.
申请公布号 AU1053100(A) 申请公布日期 2000.09.04
申请号 AU20000010531 申请日期 1999.11.08
申请人 COFLEXIP 发明人 PHILIPPE LEMBEYE
分类号 G01B7/14;G01N27/90 主分类号 G01B7/14
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