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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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Selection and applications4 min readContent language: ChineseUpdated 23 October 2026

电涡流位移传感器:径向与轴向探头能直接互换用途吗?

两种用途可能使用相似原理,但量程、安装几何、动态要求和保护意义不同。

先回答这个具体问题

两种用途可能使用相似原理,但量程、安装几何、动态要求和保护意义不同。轴向位置还依赖机械基准与允许位移,不能仅把通道名称改成轴向就完成转换。

电涡流探头通过导电目标对高频电磁场的影响反映间隙,测得的是目标相对于探头的位置或振动。轴相对振动与机壳绝对振动的参考系不同,不能直接作为同一数值。

现场怎样核对

按实际任务重新核对探头结构、安装面、有效范围、参考与监测器配置。

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

  • 按实际任务重新核对探头结构、安装面、有效范围、参考与监测器配置。
  • 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:将备用径向通道用于轴向位置时,应完成完整技术确认而不是直接沿用原参数。 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,可一并提供探头、延长电缆、前置器与轴表面的电涡流测量链路的测点示意、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。

Apply this knowledge to product selection

Customers and procurement

Check actual application and acceptance requirements against the article and product documentation. Bring open questions to DOWESTON for technical review.

Sales and technical teams

Record customer questions with application conditions. Verify range, interfaces and operating requirements against the selected model documentation.

Turn questions into application requirements

Collect application, connection, installation and acceptance requirements for the selected product, then review open points with DOWESTON.

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