Gravity:類比式導電度感測器/適用於Arduino Analog Electrical Conductivity Sensor / MeterFor Arduino(K=1)

導電度 ( Electrical conductivity , EC )

根據環境部的全國環境水質監測資訊網的名詞解釋
表示水傳導電流能力，導電度與水中離子總濃度、移動性、價數、相對濃度及水溫等有關。通常導電度愈高，表示水中電解質含量較多。由於大部分鹽類都可電離，因此導電度也可表示水中總溶解固體的多寡。導電度太高對灌溉有不良的影響，因此導電度為灌溉水質之重要指標項目之一。
https://wq.moenv.gov.tw/EWQP/zh/Encyclopedia/NounDefinition/Pedia_48.aspx

功能

• 3.0~5.0V wide voltage input
• Hardware filtered output signal, low jitter
• AC excitation source, effectively reduce polarization
• Gravity connector and BNC connector, plug and play, no welding
• Software library supports two-point calibration, and automatically identifies standard buffer solution, integrates temperature compensation algorithm
• Uniform size and connector, convenient for the design of mechanical structures

規格

Signal Conversion Board (Transmitter) V2

• 工作電壓：3.0~5.0V
• 輸出電壓： 0~3.4V
• 探頭連接器：BNC
• Signal Connector: PH2.0-3Pin
• Measurement Accuracy: ±5% F.S.
• 尺寸：42mm*32mm

Electrical Conductivity Probe

• 探頭類型：實驗室等級
• Cell Constant: 1.0
• Support Detection Range: 0~20ms/cm
• Recommended Detection Range: 1~15ms/cm
• Temperature Range: 0~40°C
• Probe Life: >0.5 year（依使用狀況而定）
• 導線長度：100cm

Gravity: 類比式導電度感測器校準

DFROBOT說明與範例

https://wiki.dfrobot.com/Gravity__Analog_Electrical_Conductivity_Sensor___Meter_V2__K%3D1__SKU_DFR0300

液體感測器選用指南

https://robotkingdom.com.tw/2022/02/18/gravity-liquid-sensor-selection-guide/