-
公开(公告)号：US06167766A
公开(公告)日：2001-01-02
申请号：US08953114
申请日：1997-10-17
IPC分类号： G01N100
CPC分类号： G01N1/26 , G01N1/18 , G01N2001/021 , G01N2001/2071
摘要： A sampling system controller includes a control unit for interfacing with a collection chamber module having a plurality of sampling chambers. The control unit controls the times at which the sampling chambers acquire samples of a fluid flow and control flow rates into the sampling chambers. The timing of the sampling chambers and the flow rates may be programmed by a user and downloaded into the control unit through an interface. The control unit measures the flow rate of the fluid flow to be sampled and controls the flow rate through each sampling chambers in order to achieve a desired and known rate through the sampling chambers. The flow rates through the fluid flow and through the sampling chambers are recorded on a data module. The control unit may be equipped with a portable weather station for monitoring weather conditions and with a global positioning system for determining a geographic position of the sampling chambers. The weather and location information may be recorded on the data module. The flow rates through the sampling chambers are controlled by a flow assembly that is easily removed and replaced. The flow assembly has a set of jumpers which specify the flow range of the assembly and which is read by the control unit. A hand-held service module is used to program the sampling system. The service module has a keypad for receiving inputs from a user and has a switch for toggling between an RS232 output or an RS485 output.
摘要翻译： 采样系统控制器包括用于与具有多个采样室的采集室模块对接的控制单元。 控制单元控制采样室获取流体流的样本并控制流入采样室的时间。 采样室的定时和流量可以由用户编程并通过接口下载到控制单元中。 控制单元测量待采样的流体流量，并控制通过每个取样室的流量，以便通过采样室达到所需和已知的速率。 通过流体流动和通过采样室的流量被记录在数据模块上。 控制单元可以配备有用于监测天气状况的便携式气象站和用于确定采样室的地理位置的全球定位系统。 天气和位置信息可以记录在数据模块上。 通过采样室的流量由易于拆卸和更换的流动组件控制。 流动组件具有一组跳线，其指定组件的流动范围并且由控制单元读取。 手持服务模块用于对采样系统进行编程。 服务模块具有用于从用户接收输入的键盘，并具有用于在RS232输出或RS485输出之间切换的开关。
搜索结果
1 条记录 (耗时 0.03 秒)
