Development of Water-Level Gauge for Small-Scale Rainwater Storage Tank

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  • 小規模雨水貯留槽に適した水位計の開発
  • ショウキボ ウスイ チョリュウソウ ニ テキシタ スイイケイ ノ カイハツ

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In this study, we conducted an evaluation experiment of a water-level gauge to be installed in a small-scale rainwater storage tank. Two types of water-level gauges were evaluated, namely, capacitance type (Texas Instruments : FDC2214EVM) and pressure type (Interlink Electronics Inc.: FSR series). The experiment was conducted using a simulated tank made of VU150 PVC pipe. The water-level gauge readings were recorded on an SD card using Arduino UNO. The evaluation was based on the correlation between the measured water level, and water-level gauge measured value, and also based on long-term stability of the water-level gauge measured value. The results demonstrate that the capacitance-type water-level gauge has a higher performance than the pressure-type water-level gauge.

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