CAJ | 학술논문

为了研究直流高压电晕放电暗电流与大气相对湿度的关系，为大气湿度的测量提供新的方法。采用针-针电极结构的直流高压放电模型，通过气体放电理论推导了暗电流与湿度的理论关系；建立暗电流测量的实验模型，测量不同输入高压和不同湿度下电极外回路放电暗电流。实验结果与理论计算的规律一致，为电晕放电暗电流测量大气湿度的研究提供了理论和实验依据。实验和计算结果表明：电晕放电暗电流随着输入电压的降低和相对湿度的降低而减小；高相对湿度环境中，电晕放电暗电流随着相对湿度的升高而剧烈增大。
위료연구직류고압전훈방전암전류여대기상대습도적관계，위대기습도적측량제공신적방법。채용침-침전겁결구적직류고압방전모형，통과기체방전이론추도료암전류여습도적이론관계；건립암전류측량적실험모형，측량불동수입고압화불동습도하전겁외회로방전암전류。실험결과여이론계산적규률일치，위전훈방전암전류측량대기습도적연구제공료이론화실험의거。실험화계산결과표명：전훈방전암전류수착수입전압적강저화상대습도적강저이감소；고상대습도배경중，전훈방전암전류수착상대습도적승고이극렬증대。
To examine relationships between dark current from DC high-voltage corona discharge and relative humid-ity of atmosphere and make new methods available for measuring atmospheric humidity,a high-voltage DC needle-needle electrode was applied for discharging electricity. Meanwhile,theoretical relationships between dark current and humidity were deduced according to gas discharge theory. Then,an experimental model was built for measuring dark current,so as to measure the dark current discharged from the circuit outside the electrode in case of different input high voltage and humidity. Consistent with the rules of theoretical calculation,the results provided theoretical and experimental evidences for examining the measurement of atmospheric humidity based on the dark current from corona discharge. The results of experiment and calculation suggested that dark current from corona discharge de-clined with the decrease of input voltage and relative humidity. Under conditions of high relative humidity,dark cur-rent from corona discharge drastically increased with the rise of relative humidity.