| 摘要 |
PURPOSE:To detect moisture with good sensitivity, by arranging a hydroscopic substance between electrodes comprising different metals, and measuring a current flowing by the spontaneous electromotive force between both electrodes. CONSTITUTION:A hygroscopic substance 4 is arranged between electrodes 1, 3 comprising different metals, for example, stainless steel and Zn and a current flowing by spontaneous electromotive force between both electrodes 1, 3 is measured by an ammeter 5. Moisture is detected from a calibration curve between current value and water content with good sensitivity. |
