Working principle of the light-guided level gauge
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Could someone explain the working principle of the optical level gauge? What are the main accessories?
The optical level gauge is derived from the steel belt type, except that it uses an optical fiber cable instead of a cable.
The optical level gauge uses the most basic detection principle; its main components include a float, steel wire, steel strip (coded steel strip), plumb bob, reader, and secondary display. Floats are used to detect the liquid level. Generally, floats are more or less heavy, depending on the density of the medium as well as the weight of the hanging weight; in any case, this helps the float to quickly track changes in the liquid level ； Steel wires are used to connect the floating disc to the steel belt, and to connect the steel belt to the hanging weight ； Steel strip: a thin steel sheet with codes, featuring numerous perforations; different perforations correspond to different liquid level codes ； The hanging weight is used to pull the floating disc, creating a force balance; its gravity is the force that causes the floating disc to rise ； The reader is equipped with LEDs; one side of it is used for reading. The light emitted by these LEDs shines on the steel strip, and light can pass through areas that have holes, while it cannot pass through areas without holes – this creates an optical code ； The secondary meter is used to communicate with the code reader, read field data, and perform data processing. The whole principle is very simple; you can figure it out by looking at the functions of the various components
Which is better, a light-guided level gauge or a radar level gauge? They are mainly used in floating roof storage tanks.