影響薄膜電容濕度傳感器的極性分子:Polar molecules, such as water, affect the capacitance of the sensor 極性分子 , 如水 , 影響傳感器的電容
• Other gases can also penetrate the polymer film, but their dielectric constant is negligible compared to water vapour (80 >> 2...3). 其他氣體也可以穿過聚合物薄膜 , 但是它們的電介質(zhì)常數(shù)和水蒸汽 的電介質(zhì)常數(shù)相比可以忽略不計(jì) (80 >> 2...3) 。
• In normal conditions there are no notable amounts of other polar molecules in the air except water vapour, especially in areas where people work. 在通常條件下 , 在空氣 中除了水蒸汽外 , 沒有其他極性分子的影響需要考慮 , 特別是在人們工作 的區(qū)域。
Capacitance is measured with a high frequency 電容通 過高頻電路測(cè)試 • Resistive phenomena not significant 阻性信 號(hào)影響不大