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A complete English edition of this article has not been published. The complete available Chinese version is shown below.

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Standards and approvals4 min readContent language: ChineseUpdated 23 October 2026

杆式磁致伸缩位移传感器:传感杆能承担活塞侧向力吗?

测量杆用于保护波导并提供测量几何,不应默认承担液压执行机构的导向载荷。

先回答这个具体问题

测量杆用于保护波导并提供测量几何,不应默认承担液压执行机构的导向载荷。侧向力或弯曲可能损伤杆与内部结构,也会影响磁环关系。

传感杆不得承担活塞侧向力或作为运动导向件。磁环与杆的同心度、间隙及紧固方式按具体安装图核对,避免活塞偏摆摩擦传感杆。

现场怎样核对

核对活塞导向、轴承和载荷路径,确保机构受力不经传感器传递。

同时记录测点、原始信号、最终结果和发生时间。保留原始配置,一次只改变一个可控条件;只有单位、工况和处理规则一致时,两组数字才可直接比较。

四项核对清单

  • 核对活塞导向、轴承和载荷路径,确保机构受力不经传感器传递。
  • 记录本题试验所用的输入条件、参考方法及设备状态,保留试验前的原始配置。
  • 对照实际订购型号核实接口和功能选项;公开原理与其他品牌示例不是本型号的性能保证。
  • 将结果分成已证实、尚未排除与需要厂家确认三类,未经验证不直接改标定系数。

假设案例:怎样得出判断

假设案例:偏载工况下杆件擦痕明显,应先处理机械受力与同心问题。 这个情景只用于说明本题的分析过程,并非真实客户案例。先按上述方法检查,再比较相同测点、相同工况下的结果;如果改变了安装、采样或配置,应保存变更前后的证据。仅观察到数值接近,不能证明根因已经解决,更不能据此推断整台设备长期运行合格。

客户与销售应怎样确认需求

客户向道威斯顿咨询本题时,可一并提供液压缸内置杆式磁致伸缩位置测量的测点示意、工作条件和本题核对记录。销售应把问题转成具体的输入要求、安装条件、功能选项与验收证据,逐项交由技术人员确认。涉及设备保护、联锁或危险区域的试验,由现场负责人员批准;知识文章不替代设备制造商的停机条件或操作规程。

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