【摘要】 介绍了空气中高浓度偏二甲肼（ＵＤＭＨ）和二氧化氮（ＮＯ_２）监测仪的研制及应用。该仪器采用恒电流库仑法研制。为提高仪器的特异性和扩大量程，分别研制了一种新的选择性过滤器和一种分流技术。该仪器结构简单、便携，适用于现场监测，效果良好。更多还原

【Abstract】 The development and application of a real-time instrument for the monitoring of unsymmetrical-dimethyl hydrazine (UDMH) and nitrogen dioxide of high concentration in the air are introduced. The principle of the instrument operation is constant-current coulometric method. A new selective filter is invented to improve the specificity and a spilt-flow technique is devised to expand the measurement range. Being of simple structure, the instrument is portable and suitable for field monitoring.更多还原