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1. 发明申请

WO2012051136A1 METHOD FOR MEASURING REMOTE FIELD EDDY CURRENT THICKNESS IN MULTIPLE TUBULAR CONFIGURATION 审中-公开
标题翻译：在多个管状结构中测量远场场EDDY电流厚度的方法
公开(公告)号：WO2012051136A1
公开(公告)日：2012-04-19
申请号：PCT/US2011/055675
申请日：2011-10-11
申请人： HALLIBURTON ENERGY SERVICES, INC. , YARBRO, Gregory, Scott , LI, Jing , BITTAR, Michael
发明人： YARBRO, Gregory, Scott , LI, Jing , BITTAR, Michael
IPC分类号： G01B7/06
CPC分类号： G01N27/9066 , E21B47/082 , G01B7/10 , G01N33/20 , G01V3/12
摘要： In accordance with aspects of the present invention, a method of inspecting a well tubular is disclosed. The method utilizes a probe with a transmitter and detectors spaced from the transmitter by at least twice the diameter of the pipe to be tested. In some cases where multi-tubular structures are tested, the probe can include further detectors spaced from the transmitter by at least twice the diameter of the outer pipes as well. The phase of signals detected by the detectors relative to the transmitter are utilized to detect faults in the pipes.
摘要翻译：根据本发明的方面，公开了一种检查井管的方法。该方法利用具有发射器的探头和与发射器间隔开至少两倍于被测试管道直径的检测器。在测试多管结构的一些情况下，探针还可以包括与发射器间隔开至少两倍于外管直径的另外的检测器。由检测器相对于发射器检测的信号的相位被用来检测管道中的故障。

2. 发明申请

WO1984002189A1 APPARATUS FOR CONTROL AND/OR MEASURING OF OBJECTS 审中-公开
标题翻译：用于控制和/或测量物体的装置
公开(公告)号：WO1984002189A1
公开(公告)日：1984-06-07
申请号：PCT/SE1983000409
申请日：1983-11-22
申请人： TÖRNBLOMS KVALITETSKONTROLL AB , TÖRNBLOM, Bengt
发明人： TÖRNBLOMS KVALITETSKONTROLL AB
IPC分类号： G01N21/89
CPC分类号： G01N27/9066
摘要： Device for measuring and/or control of objects such as bodies, billets, wire, etc. with respect to changes, for example defects, comprising at least one transducer with associated signal processing means, the transducer moving relative to the object. Characteristic of the device is that signals, completely or partially originating from the same part of the object, are time-delayed, by means of the signal processing, relative to each other and thereafter combined in such a way that at least one undesired signal, for example a disturbance, can be suppressed in a better way. By the time-lag delay, relatively simple signals can be converted into more complex ones, whereby the possibilities of signal processing can be improved. This can be utilized, especially in e.g. eddy current transducers, for simulating a balanced (differential) transducer starting from a simple so-called absolute transducer. The time-lag delay is accomplished, for example, with the aid of an analog shift register or the like.
摘要翻译：相对于包括至少一个具有相关联的信号处理装置的换能器的变化（例如缺陷），用于测量和/或控制物体（例如主体，坯料，线等）的装置，换能器相对于物体移动。该装置的特征是通过信号处理相对于彼此而被完全或部分地来自对象的相同部分的信号进行时间延迟，并且此后被组合为使得至少一个不需要的信号，例如干扰可以以更好的方式被抑制。通过时滞延迟，可以将相对简单的信号转换成更复杂的信号，从而可以提高信号处理的可能性。这可以被使用，特别是在例如涡流传感器，用于从简单的所谓的绝对传感器模拟平衡（差分）换能器。时滞延迟例如通过模拟移位寄存器等来实现。

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