公开(公告)号：US5610835A

公开(公告)日：1997-03-11

申请号：US530506

申请日：1995-09-19

申请人： Luis M. Dominguez ,  Forrest W. Bowling ,  William M. Coleman, III ,  Bert M. Gordon

发明人： Luis M. Dominguez ,  Forrest W. Bowling ,  William M. Coleman, III ,  Bert M. Gordon

IPC分类号： G01N30/04 ,  G01N30/02 ,  G01N30/62 ,  G01N30/86 ,  G01N30/88

CPC分类号： G01N30/88 ,  G01N30/62 ,  G01N2030/025 ,  G01N2030/047 ,  G01N2030/626 ,  G01N2030/8804 ,  G01N2030/884 ,  G01N2030/8859 ,  G01N2030/8886

摘要： A method for monitoring the concentration of at least one volatile or semi-volatile compound contained in at least one air stream carrying at least one volatile or semi-volatile compound and apparatus for performing the method, which includes the steps of calibrating at least one gas chromatograph using at least three different calibration gases, obtaining a sample of the at least one air stream containing the at least one compound, providing the sample of the at least one air stream to the at least one gas chromatograph under control of a digital data processor to analyze the sample of the at least one air stream to determine the concentration of the at least one compound in the sample and controlling the operations using the digital data processor.

摘要翻译： 一种用于监测至少一种含有至少一种挥发性或半挥发性化合物的空气流中含有的挥发性或半挥发性化合物的浓度的方法和用于执行该方法的装置，其包括以下步骤：校准至少一种气体 色谱仪，使用至少三种不同的校准气体，获得含有至少一种化合物的至少一种空气流的样品，在数字数据处理器的控制下将至少一种气流的样品提供给至少一种气相色谱仪 分析至少一个气流的样品以确定样品中至少一种化合物的浓度，并使用数字数据处理器控制操作。

公开(公告)号：US5446868A

公开(公告)日：1995-08-29

申请号：US943635

申请日：1992-09-11

申请人： Raymond A. Gardea, II ,  Martin D. Covington, Jr. ,  Brent W. Carter ,  Forrest W. Bowling

发明人： Raymond A. Gardea, II ,  Martin D. Covington, Jr. ,  Brent W. Carter ,  Forrest W. Bowling

IPC分类号： H04L12/46 ,  G06F13/42 ,  G06F15/173

CPC分类号： H04L12/4625

摘要： A network bridge between a DEC Ethernet network using LAT protocol and an Allen-Bradley Data Highway/Data Highway Plus (DH/DH+) network eliminates the need to use a DEC terminal server and Allen-Bradley KE/KF2 interface with their low data rates. A terminal server emulator is electrically connected to the DEC Ethernet network for stripping the LAT protocol from the DEC Ethernet network and provide DF1 formatted data. A converter module is electrically connected between the terminal server emulator and the DH/DH+ network for converting the DF1 data into DH/DH+ protocol data and for transmitting this data to the DH/DH+ network. The converter also converts data using DH/DH+ protocol which is received from the DH/DH+ network into DF1 data and transmits this data to the terminal server emulating means. The terminal server emulating means then places the DF1 formatted data into LAT packets and transmits the LAT packets to the Ethernet network. The terminal server preferably includes a commercially available LAT engine. The terminal server emulator and the converter preferably run on a general purpose microcomputer which includes an Ethernet interface board and an Allen-Bradley interface board.

摘要翻译： 使用LAT协议的DEC以太网和Allen-Bradley Data Highway / Data Highway Plus（DH / DH +）网络之间的网桥不需要使用DEC终端服务器和Allen-Bradley KE / KF2接口及其低数据速率 。 终端服务器仿真器电连接到DEC以太网，用于从DEC以太网网络剥离LAT协议，并提供DF1格式的数据。 A转换器模块电连接在终端服务器仿真器和DH / DH +网络之间，用于将DF1数据转换为DH / DH +协议数据，并将该数据发送到DH / DH +网络。 转换器还使用从DH / DH +网络接收的DH / DH +协议将数据转换为DF1数据，并将该数据发送到终端服务器仿真装置。 然后，终端服务器模拟装置将DF1格式化的数据放入LAT数据包，并将LAT数据包发送到以太网。 终端服务器优选地包括市售的LAT引擎。 终端服务器仿真器和转换器优选地在包括以太网接口板和Allen-Bradley接口板的通用微型计算机上运行。