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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=57" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">加州理工开发微型光学陀螺仪 体积仅常规设备的1/500 </h1> <p class="xg1"> 时间：2018-11-2 09:04<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(856)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=7221&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a></p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=57" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>近日，加州理工宣布了由 Ali Hajimiri 带头研发、全球最小的微型光学陀螺仪，体型仅为常规设备的 1/500 。</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><div> 近日，加州理工宣布了由 Ali Hajimiri 带头研发、全球最小的微型光学陀螺仪，体型仅为常规设备的 1/500 。虽然陀螺仪在手持式<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电子</a>设备、可穿戴设备上更为常见。但它也可用作车辆或飞行器的方向稳定性组件，有望让未来的无人机功能更强大、价格更便宜。</div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201811/02/090407q9vvvjggvtxvf22f.png" target="_blank"><img src="data/attachment/portal/201811/02/090407q9vvvjggvtxvf22f.png"></a></p></div><div> 通常情况下，陀螺仪会配备质量相同、但振荡和移动方向相反的两个内部组件。<a href="http://sensor.oecr.com" target="_blank" class="relatedlink">传感</a>器能够检测这些质量上“力的变化”，从而计算出设备的姿态。</div><div><br></div><div> 然而<a href="http://machine.oecr.com" target="_blank" class="relatedlink">机械</a>部件的缺点是，在设备快速移动的时候，其灵敏度会大幅降低。而这，正是光学陀螺仪能派上用场的地方。</div><div><br></div><div> 因为没有移动部件，所以光学陀螺仪的灵敏度和准确度都很高。但由于成本高昂，通常只被最需要精确导航的平台所使用，比如飞机、潜艇、洲际弹道导弹、以及空中和水上无人机。</div><div><br></div><div> 当前市面上最好的光学陀螺仪，大小与一个高尔夫球差不多。但加州理工的研究团队，已经成功地将它微缩到比一粒米还小。</div><div><br></div><div> 昆士兰大学无人机高级讲师兼研究员 Pauline Pounds 在接受 TNW 采访时称，这项进展有望大幅降低光学陀螺仪的成本，对诸多领域产生显著的影响。</div><div><br></div><div> 此前的微型无人机，只能用上低精度的传感器，因此对惯性运动的感知较差。不过现在，随着光学陀螺仪体积的缩小，可以显著促进这方面的发展。</div><div><br></div><div> 此外，这项技术还能延伸至加速度传感器，让基于芯片的导航推算更加精准。这是基于距离检测物体位置的能力，而不像 GPS 那样需要用到天文定位。</div><div><br></div><div> 最后，光学陀螺仪的尺寸缩小，有望在未来推动手机动作感应、以及相机防抖等应用。</div><div><br></div><div><p microsoft="" yahei",="" simsun;="" background-color:="" rgb(255,="" 255,="" 255);="" text-align:="" center;"="" center;="" 255);"="" style="text-align: center; word-wrap: normal; margin: 0px; padding: 0px; color: rgb(143, 143, 143); font-family: Tahoma, "Microsoft Yahei", Simsun; background-color: 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</div> <input type="hidden" name="portal_referer" value="portal.php?mod=view&aid=7221#comment"> <input type="hidden" name="referer" value="portal.php?mod=view&aid=7221#comment" /> <input type="hidden" name="id" value="0" /> <input type="hidden" name="idtype" value="" /> <input type="hidden" name="aid" value="7221"> <input type="hidden" name="formhash" value="eda6aa02"> <input type="hidden" name="replysubmit" value="true"> <input type="hidden" name="commentsubmit" value="true" /> <p class="ptn"><button type="submit" name="commentsubmit_btn" id="commentsubmit_btn" value="true" class="pn"><strong>评论</strong></button></p> </form> <a name="comment_anchor_20358"></a> <dl id="comment_20358_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(20358, '7221');">引用</a> </span> <a href="http://club.oecr.com/space-uid-6485.html" class="xi2 xw1" c="1">qq</a> <span class="xg1 xw0">2018-11-2 20:02</span> </dt> <dd>在这里混好久啦</dd> </dl><a name="comment_anchor_20357"></a> <dl id="comment_20357_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(20357, '7221');">引用</a> </span> <a href="http://club.oecr.com/space-uid-48487.html" class="xi2 xw1" c="1">无能力故</a> <span class="xg1 xw0">2018-11-2 19:32</span> </dt> <dd>鄙视楼下的顶帖没我快，哈哈</dd> </dl><a name="comment_anchor_20353"></a> <dl id="comment_20353_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(20353, '7221');">引用</a> </span> <a href="http://club.oecr.com/space-uid-48492.html" class="xi2 xw1" c="1">qiuhuan11</a> <span class="xg1 xw0">2018-11-2 17:32</span> </dt> <dd>想要的资料。</dd> </dl><a name="comment_anchor_20348"></a> <dl id="comment_20348_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(20348, '7221');">引用</a> </span> <a 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