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Selection and applications4 min readContent language: ChineseUpdated 23 October 2026

罐内有梯子、盘管、横梁,雷达还能用吗?

先找可用传播路径,再评估回波抑制,不能依赖软件遮盖所有障碍。

金属构件可能返回强回波

梯子、支架、盘管和加强梁可能位于雷达传播范围内,尤其是有水平表面的构件。它们与真实料面的回波可能竞争或叠加。是否能正常测量取决于安装位置、角度、天线及料位范围,并非看到障碍就必须放弃雷达。

把障碍所在高度与料位一起标出

俯视图用于找空隙,剖面图用于判断料面何时经过干扰高度。应同时考虑空罐、正常和高料位,优先用合适安装位置减轻干扰。涉及容器内部结构的改造必须由设备负责人评估,不能为测量擅自拆改承力部件。

调试资料比一句有干扰更有效

向道威斯顿提供障碍尺寸、坐标及异常发生的液位,保留带距离刻度的回波图。必要的虚假回波处理应针对已确认对象,并核验真实料面经过该高度时仍能被跟踪;屏蔽后读数平稳本身不构成成功证明。

把障碍物信息整理成可用图纸

不同高度和方向的构件可能产生不同影响,下面的记录有助于把回波峰与真实结构对应。

  • 分别绘制俯视位置和剖面高度,标出梯子、盘管、横梁及支撑的主要尺寸,说明是否存在临时伸入罐内的部件。
  • 记录障碍表面的大致方向与材质,并标明料面会在哪些高度经过它,不只判断天线中心线是否直接穿过构件。
  • 保留雷达安装方向和天线位置,检修转动或重新安装后进行对照,避免把不同安装状态下的回波当成同一背景。
  • 将正常和异常回波与实际物位对应保存;只有确认是固定干扰后,才由技术人员评估抑制措施与再次验证范围。

假设分析:液位靠近盘管时才出现异常

假设储罐大部分区间正常,液面每次经过一段盘管附近就有跳变。可先检查这一高度的料面回波与盘管反射是否相互接近,核对安装位置和已有屏蔽记录,而不是立即把整段量程排除。若技术人员建议调整位置,应重新确认新位置在低料位时是否又碰到罐壁或梯子。验证应覆盖原问题区间的上升和下降过程。这个假设强调对障碍、物位与回波进行对应,不能把任何位于附近的构件都直接认定为已证实的故障原因。

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.

Choose a product and prepare requirements
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