燃氣示蹤線借助于電磁波感應工作原理。原因是在管道敷設時，敷設人員埋設一條具有導電性的金屬線，該金屬線和燃氣管道并成一定的夾角，當管道與線之間有電磁波相互作用時，線上就會產生一定的電網電流，這時可以對金屬線施加一個特定的信號，通過檢測回波強度通過信號判斷管道的位置。這種工作原理需要使用一些特殊的設備，如示跡儀、定向儀等，才能準確地探測出燃氣管道的位置。

The gas tracer line operates on the principle of electromagnetic wave induction. The reason is that during pipeline laying, the laying personnel bury a conductive metal wire that forms a certain angle with the gas pipeline. When there is electromagnetic wave interaction between the pipeline and the wire, a certain amount of grid current will be generated on the wire. At this time, a specific signal can be applied to the metal wire to determine the position of the pipeline by detecting the echo intensity and the signal. This working principle requires the use of some special equipment, such as tracers, directional sensors, etc., in order to accurately detect the position of gas pipelines.

　　此外，在進行燃氣管道敷設時，還需要考慮一些因素，如管道的材料、壓力是否正常，以及周圍環境是否有可能會對管道造成損壞等。

In addition, when laying gas pipelines, some factors need to be considered, such as whether the material and pressure of the pipeline are normal, and whether the surrounding environment may cause damage to the pipeline.

　　燃氣示蹤線是專為查找與定位地下非金屬管線而設計的產品。它有效地了非金屬管線不能用金屬管線尋管儀探查的問題，可廣泛適用于燃氣、供水管線管線及排水管線等地下非金屬管網的查找與定位。

Gas tracer lines are products designed specifically for locating and locating underground non-metallic pipelines. It effectively solves the problem that non-metallic pipelines cannot be detected by metal pipeline finder, and can be widely used for the search and positioning of underground non-metallic pipeline networks such as gas, water supply pipelines, and drainage pipelines.

　　示蹤線探測：管道敷設完成后，應使用管道探測器對已敷設之可探示蹤線進行可探性測試，以確保金屬絲已連接妥當，應記錄測試結果。將示蹤線的金屬線與管道定位儀的發射機輸入端連接，而發射機接地端應且盡可能遠離發射機，使用接地樁或者電線桿的接地，以減少接地電阻。用接收器去探測接受發射信號。可以找到管道位移量和埋深。

Tracer line detection: After the pipeline is laid, a pipeline detector should be used to conduct a detectability test on the already laid traceable lines to ensure that the metal wires are properly connected, and the test results should be recorded. Connect the metal wire of the tracer line to the input end of the transmitter of the pipeline locator, and the grounding end of the transmitter should be as far away as possible from the transmitter. Use grounding stakes or poles to reduce grounding resistance. Use a receiver to detect and receive transmission signals. You can find the displacement and burial depth of the pipeline.

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