第4章 承重

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工“系统的光屏在他视野里亮了一下:“外部进度更新。国际材料学会预印本平台已在北京时间下午两点零七分正式收录了你的展板数据,投稿人署名为'张启明等'。目前预印本下载量已超过四百次,IP来源分布在十七个国家和地区。其中一组来自比利时列日的访问轨迹在下载完成之后继续访问了平台服务器的日志接口,这是非正常行为。“
    (本章未完,请点击下一页继续阅读)第4章承重(第2/2页)
    陆维桢的脚步在骨架的左脚跟前停了一下。光屏上的字继续:“比利时列日那个行为已经被平台端安全机制拦截了,日志接口返回的是空白数据。但对方的访问时间点在预印本上线后第三分钟。非常快,说明有人在提前等待这个链接出现。“
    隔间的门打开了。周承岳走出来,身后跟着一个穿白大褂的年轻女人。她手里拎着一只军绿色的硬质测试箱,另一只手的手机屏幕亮着,上面是一组正在实时刷新的频谱曲线。她的白大褂下面是一件深灰色长袖T恤,袖口卷到了小臂中段,露出的前臂线条瘦而紧实。她走进大厅之后目光从周承岳身上掠过,直接落在了陆维桢身上,然后扫了一眼他身后的骨架。
    “顾晏。“她把测试箱搁在操作台上,伸过手来,指腹有零星几处焊锡烫过的白痕,“电磁兼容组。周组长说你要做磁流变液关节的激励线圈?“
    陆维桢跟她握了手,掌心干燥,力道适中:“线圈走闭合磁路,纳米晶磁芯做磁路闭环。但交变工况下的温升会使磁导率漂移,我准备用三绕组结构做温度补偿。主绕组跑工况,补偿绕组接热敏电阻分压网络做闭环调节,第三绕组空置做感应电压监测。温升每增加一度,补偿绕组电流下调零点零三毫安,把磁通密度维持在设计值的正负百分之一以内。“他说完之后看着她,“你觉得可行?“
    顾晏没有立刻回答。她转身弯腰打开测试箱,从里面取出一块备用的纳米晶磁芯样品放在操作台上,然后从白大褂口袋里抽出一张折过的A4纸展开平铺在磁芯旁边——上面是她手写的温漂基线测试数据,每一行都标注了实验条件和误差区间。她把纸往陆维桢的方向推了推:“这是我前天在屏蔽室里跑的一组原始数据。你先看看对得上你的补偿逻辑不。对得上我就开始绕线圈,对不上你把我纸拿来重新画。“
    陆维桢接过那张纸低头扫了一遍。数据记录得非常细致,从零下四十度到零上八十五度每隔五度取一个测量点,每点的磁导率变化都做了三次重复取平均值,误差棒标注清楚。他脑子里“天工“系统的验证模块正在自动交叉比对,所有数字逐一匹配之后弹出一行结果:“数据质量合格。温漂趋势符合理论预期。“
    他把纸折好递还给顾晏:“对得上。你的数据采集方法很规范,重复性误差控制在百分之一点二以内,可以直接用。还有,“他指了指她纸上末段一行被涂改过的数字,“你测到八十五度那组数据第一次写的时候偏高了三个百分点,然后你重测了。那组涂改现在看是对的,你重测之后的数值更贴近实际。“
    顾晏接过纸的动作停了半秒。她低头看了自己涂改过的那行数字一眼,视线回到陆维桢脸上时微微动了一下——幅度很小,但陆维桢注意到了。
    “你眼神不错。“她把纸收进白大褂口袋,转身把测试箱扣好,拖过来一把椅子在操作台前坐下,开始翻箱子里面的漆包线轴和绕线骨架,“周组长说你要拆骨架是今天之内?“
    “今晚开始拆右腿。“陆维桢说。
    “那我先绕一组线圈样件出来。“顾晏把第一卷漆包线的端头拉出来缠在绕线机的固定柱上,头也没回,“你那份补偿逻辑里的温度系数公式写一下给我。“
    陆维桢走到操作台侧面重新拿起马克笔,在白板空白处写了三行公式。笔尖在白板上划出干脆的声响,周承岳站在门口看了他们两个一眼,没有打扰,转身朝电梯方向走去。他走了几步之后侧过头补了一句话:“国际材料学会那边的预印本已经正式收录了。张院士让我转告你:从现在开始,你在公开网络上的任何痕迹都会被定期筛查。“
    陆维桢写完最后一行公式放下马克笔,转头看着周承岳的背影走进电梯。电梯门合拢之前他听到周承岳的手机在响,接起来之后只说了“嗯“一声就挂了。
    白板上的公式墨迹还没干透,顾晏的绕线机已经开始嗡嗡转动了。她背对着他坐在操作台前,后背的线条在白大褂下面专注地前倾。大厅里那具重岳零号的液压骨架在灯光下投出一道宽阔的暗影,覆盖了转台周围半圈地面。陆维桢站在白板和骨架之间的空地上,光屏的右下角安静地浮着一行浅灰色的小字:“比利时列日的那个访问者现已定位到一座注册在工业园区的数据中心。该数据中心所在园区与某精密加工企业同属一个集团。该企业的东南亚工厂于十
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