> For the complete documentation index, see [llms.txt](https://docs.lorric.com/qr/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.lorric.com/qr/fu-tx310-ultrasonic-flowmeter-manual-chinese-v3/2.-an-zhuang-fang-shi/2.2-chao-yin-bo-tan-tou.md).

# 2.2 超音波探頭

本儀器超音波訊號穿透管壁與流體的發射與接收是透過壓電式超音波探頭進行，再透過超音波訊號時間差來量測，探頭與探頭之間的距離必須透過精密的計算與架設來確保測值的精確。本節將敘述相關的接線與安裝注意事項。

![](https://2014179482-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LvOj8pQTuPmq-zW1Izm%2F-Lx--VSDanT87TmP_MGl%2F-Lx-65tzDKPLo-ESij-x%2F%E5%84%80%E8%A1%A8%E6%8E%A5%E7%B7%9A-1-01.png?alt=media\&token=c37b5765-14a2-4645-9a1a-34f5bc4c7be7)


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