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公开(公告)号：US3814914A
公开(公告)日：1974-06-04
申请号：US36726473
申请日：1973-06-05
申请人： BETHLEHEM STEEL CORP
摘要： An analog electrical system utilizes a signal from a coke weighing system and a signal from a coke moisture gauge to correct for prior errors in hopper weighings due to delivery overshoot as well as moisture variations in prior batches of coke.
摘要翻译： 模拟电气系统利用来自焦炭称重系统的信号和来自焦炭湿度计的信号来校正由于发送过冲以及先前批次的焦炭中的水分变化导致的料斗称重中的先前误差。
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公开(公告)号：US3791204A
公开(公告)日：1974-02-12
申请号：US3791204D
申请日：1972-08-28
申请人： BETHLEHEM STEEL CORP
CPC分类号： G01L5/0076 , G01L1/225 , G01L5/0066
摘要： A means for making a simple and economical roll force measurement on rolling mill stands. A strain gage consisting of a half-bridge of vertical and horizontal semiconductor strain elements is cemented to opposing strain sites on a given post of both side frames of a rolling mill stand. These half-bridges are wired into a full-bridge strain gage circuit for each post which is responsive to post strain as a function of roll force, but is not responsive to bending moments in the post. Thermal variations affecting strain gage sensitivity are compensated for by energizing each full-bridge circuit with a separate constant current source. Thermal and mechanical drift affecting strain gage zero are compensated for by automatically nulling amplified strain gage output signals by electronic means during the absence of a workpiece in the rolling mill stand. Roll force signals from individual posts, or their sum, are selectively fed to a utilization device such as a roll force indicator or controller.
摘要翻译： 一种在轧机机架上进行简单经济的滚动力测量的手段。 由垂直和水平半导体应变元件的半桥组成的应变计被胶合到轧机机架的两个侧框架的给定柱上的相对的应变位置。 这些半桥被连接到用于每个柱的全桥应变计电路中，其响应于作为辊力的函数的后应变，但是不响应于柱中的弯矩。 通过用独立的恒流源激励每个全桥电路来补偿影响应变计灵敏度的热变化。 通过在轧机机架中没有工件时，通过电子方式自动归零放大的应变计输出信号来补偿影响应变计零点的热和机械漂移。 来自各个柱的滚动力信号或其总和被选择性地馈送到诸如滚动力指示器或控制器的利用装置。
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