Surface particle detector

一种表面粒子检测器，包括：可在表面上滑动的扫描器探头(92)，用于对通过的粒子计数的粒子计数器(82)，和包括连接在扫描器探头和粒子计数器之间的一对管(38、40)的导管。粒子计数器包括泵(80)，该泵用于产生将来自表面的粒子通过扫描器和导管吸引到计数器然后再回到扫描器的气流。传感器(78)测量气流流率，控制器基于感测的气流流率控制泵的速度。导管通过第一连接器与粒子计数器相连，该第一连接器包含电子标记，以识别连接到导管另一端的扫描器的类型。控制器响应检测的电子标记控制粒子计数器。粒子计数器还包括可拆卸的滤芯，其具有捕捉用于实验室分析的计数的粒子的过滤元件。 A surface particle detector that includes a scanner slidable over a surface, a particle counter for counting particles passed therethrough, and a conduit connected between the scanner and the particle counter. The particle counter includes a pump for creating an airstream for drawing particles from the surface, through the scanner and conduit, to the particle counter, and back to the scanner. A sensor measures the airstream flow rate, and a controller controls the pump speed based upon the sensed airstream flow rate. The conduit attaches to the particle counter via a first connector, which contains electronic indicia identifying the type of scanner attached to the other end of the conduit. The controller controls the particle counter in response to the detected electronic indicia. The particle counter also includes a removable filter cartridge with a filter element that captures the counted particles for laboratory analysis.