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德国Gri mm Aerosol Technik公司开发出了可以检测1 nm以下颗粒的新型仪器,这种新型仪器的工作原理与普通凝结核计数器的不同,这种新型仪器检测颗粒依靠的是法拉第杯静电计。新技术扩展了对颗粒粒径检测的下限,仪器检测的反应时间更快了(50 ms),并且不需使用凝聚液(以前一般需
The Grimm Aerosol Technik company in Germany has developed a new instrument that can detect particles below 1 nm. The new instrument operates on a different principle than an ordinary condensed-core counter. The new instrument relies on a Faraday cup electrometer. The new technology expands the lower limit of particle size detection by allowing faster instrument response times (50 ms) and eliminating the need for coacervates (formerly required