tag 标签: microscope

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  • 热度 17
    2015-9-7 18:57
    1379 次阅读|
    0 个评论
    I've been a fan of ifixit.com and ifixit.org ever since I started looking at them for my travelling toolkit. I ended up using one of their smaller toolkits as the foundation for my final formation, which I carry around with me everywhere.   The reason I'm waffling on about this here is that the folks from ifixit have just launched a very interesting set of videos on their YouTube Channel . These videos feature a lady called Jessa Jones who taught herself how to microsolder after her kids had dropped her iPhone into the toilet and caused the charging coil to short out.   According to this ifixit column : "Jessa taught herself how to microsolder, fell in love with repairing electronics, and started a repair business called iPad Rehab in Mendon, New York. Now she does board-level repairs for a living and teaches microsoldering to other repair techs."   Reading further, we discover that the folks at ifixit recently acquired a Simul-Focal Stereo Zoom Microscope on a Dual Arm Boom from AmScope, so they invited Jessa out to their home office in San Luis Obispo, Califirnia, to teach them how to use their new toy and also to teach the ifixit community some basic microsoldering techniques.   They released several videos the past few weeks. In this series, Jessa will be walking us through microsoldering basics, the hardware we need to get started, troubleshooting, common mistakes, common repairs, and more.   In fact, they actually posted two videos last August 24-- the first introduces Jessa and sets the rest of the series up; the second provides an introduction to microsoldering.   I, for one, cannot wait to see the rest of this series. For too long I've limited myself to working only with the standard 0.1" pitch dual-in-line (DIL) lead through-hold (LTH) technology of my youth. Many of my chums, like Duane Benson, now happily hand-solder surface-mount devices (SMDs), so maybe it's time for me to allow myself to be dragged kicking and screaming into the 21st Century.   I may even be tempted to invest in a digital microscope, but I doubt my funds will cover the "Simul-Focal Stereo Zoom Microscope on a Dual Arm Boom" favored by the folks at ifixit. I wonder how much that little beauty costs. I also wonder what the best option would be for an impoverished young engineer (like yours truly) on a limited budget. Do you have any suggestions?
  • 热度 9
    2015-9-7 18:55
    1399 次阅读|
    0 个评论
    I've been a fan of ifixit.com and ifixit.org ever since I started looking at them for my travelling toolkit. I ended up using one of their smaller toolkits as the foundation for my final formation, which I carry around with me everywhere.   The reason I'm waffling on about this here is that the folks from ifixit have just launched a very interesting set of videos on their YouTube Channel . These videos feature a lady called Jessa Jones who taught herself how to microsolder after her kids had dropped her iPhone into the toilet and caused the charging coil to short out.   According to this ifixit column : "Jessa taught herself how to microsolder, fell in love with repairing electronics, and started a repair business called iPad Rehab in Mendon, New York. Now she does board-level repairs for a living and teaches microsoldering to other repair techs."   Reading further, we discover that the folks at ifixit recently acquired a Simul-Focal Stereo Zoom Microscope on a Dual Arm Boom from AmScope, so they invited Jessa out to their home office in San Luis Obispo, Califirnia, to teach them how to use their new toy and also to teach the ifixit community some basic microsoldering techniques.   They released several videos the past few weeks. In this series, Jessa will be walking us through microsoldering basics, the hardware we need to get started, troubleshooting, common mistakes, common repairs, and more.   In fact, they actually posted two videos last August 24-- the first introduces Jessa and sets the rest of the series up; the second provides an introduction to microsoldering.   I, for one, cannot wait to see the rest of this series. For too long I've limited myself to working only with the standard 0.1" pitch dual-in-line (DIL) lead through-hold (LTH) technology of my youth. Many of my chums, like Duane Benson, now happily hand-solder surface-mount devices (SMDs), so maybe it's time for me to allow myself to be dragged kicking and screaming into the 21st Century.   I may even be tempted to invest in a digital microscope, but I doubt my funds will cover the "Simul-Focal Stereo Zoom Microscope on a Dual Arm Boom" favored by the folks at ifixit. I wonder how much that little beauty costs. I also wonder what the best option would be for an impoverished young engineer (like yours truly) on a limited budget. Do you have any suggestions?
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    用IMMicroscope方法计算无源互调产物维普资讯http://www.cqvip.com第6卷第3期2005年6月空军工程大学学报(自然科学版)Vo1.6No.3JOURNALOFAIRFORCEENGINEERINGUNIVERSITY(NATURALSCIENCEEDITION)Jun.2005用IMMicroscope方法计算无源互调产物王海宁,梁建刚,王积勤,张晨新(空军工程大学导弹学院,陕西三原713800)摘要:在微波与射频无源互调的研究中,预测无源互调产物的电平是非常重要的。在IMMicro―scope方法的基础上进行了改进,在预测过程中直接引入输入信号经过非线性器件后输出信号的幅度和相位变化模型,给出了详细的数学模型,并实例验证了该方法的正确性。关键词:无源互调(PIM);无源互调产物(PIMP);IMMicroscope;RF中图分类号:TN914文献标识码:A文章编号:1009―3516(2005)03―0047―03随着现代通信卫星的发展,接收机的灵敏度越来越高,在这种情况下。无源互调(……