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公开(公告)号:US4658223A
公开(公告)日:1987-04-14
申请号:US688085
申请日:1984-12-31
申请人: Dennis F. Marvin , Roger Steele
发明人: Dennis F. Marvin , Roger Steele
CPC分类号: H03L1/028 , H03B5/362 , H03B2200/0008
摘要: A method within adjusting values of a passive temperature compensation network for use in an oscillator includes the steps of determining the frequency variation of the oscillator from nominal over a specified temperature range, determining the maximum frequency variation over the temperature range, and recalculating the performance of the circuit over the temperature range utilizing reduced values for the temperature compensation components therein. The oscillation frequency can be utilized as the controlled parameter to a laser based component trimming system. Power is applied to the oscillator and the compensation component is trimmed until the circuit oscillates at the specified target frequency.
摘要翻译: 调整用于振荡器的被动温度补偿网络值的方法包括以下步骤:确定振荡器在规定温度范围内的标称频率变化,确定温度范围内的最大频率变化,并重新计算振荡器的性能 该温度范围内的电路利用其中的温度补偿部件的减小的值。 振荡频率可以用作基于激光的组件修整系统的受控参数。 电源被施加到振荡器,补偿元件被修整,直到电路以指定的目标频率振荡。
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公开(公告)号:US06702031B2
公开(公告)日:2004-03-09
申请号:US10061947
申请日:2002-01-31
IPC分类号: E21B2301
摘要: A method and apparatus for severing the mandrel of an anchor device such as a packer to release the packer and remove it from a well. A cutter locator profile above the packer assembly and a cutter locator element on the cutting tool are located so as to precisely position the cutting element at a desired location on the packer mandrel. Once the mandrel is severed, the packer assembly can elongate to release the expansion mechanism. Then, the packer assembly can be pulled upwardly to release the packer, and to remove it from the well. A cutting tool can be lowered through production tubing to sever the mandrel, followed by pulling the packer with the production tubing. Alternatively, a cutting tool can be lowered on a workstring and latched to the upper end of the packer assembly, followed by severing the mandrel and pulling the packer with the workstring.
摘要翻译: 一种用于切断诸如封隔器的锚定装置的心轴的方法和装置,以释放封隔器并将其从井中移出。 位于封隔器组件上方的切割器定位器轮廓和切割工具上的切割器定位器元件被定位成将切割元件精确地定位在封隔器心轴上的期望位置处。 一旦心轴被切断,封隔器组件可以伸长以释放膨胀机构。 然后,封隔器组件可以被向上拉以释放封隔器,并将其从井中移出。 可以通过生产管道将切削工具降低以切断心轴,然后用生产管道拉动封隔器。 或者,切割工具可以在工作绳上下降并且锁定到封隔器组件的上端,随后切断心轴并用工作绳拉动封隔器。
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