-
公开(公告)号：US3701908A
公开(公告)日：1972-10-31
申请号：US3701908D
申请日：1971-02-01
发明人： NEER HAROLD M , STREET VERN A
CPC分类号： G01N30/8651 , G01R19/04 , G06G7/1865 , G06G7/75 , G11C27/00 , G11C27/026
摘要： An output circuit is provided for use with a chromatographic analyzer. The analyzer output is amplified and passed through an attenuation network to an integrator. The output signal from the integrator is applied selectively through an amplifier to the input of the first amplifier to provide an automatic zero circuit. Additional differentiating, peak reading and storage circuits are selectively connected to the output of the integrator.
摘要翻译： 提供输出电路用于色谱分析仪。 分析仪输出被放大并通过衰减网络传递到积分器。 来自积分器的输出信号通过放大器被选择性地施加到第一放大器的输入端以提供自动零电路。 额外的微分，峰值读取和存储电路选择性地连接到积分器的输出。
-
2.发明授权Apparatus and method for altering process control in response to a power interruption 失效响应于电源中断改变过程控制的装置和方法
公开(公告)号：US3890494A
公开(公告)日：1975-06-17
申请号：US45573874
申请日：1974-03-28
发明人： MESHEK HARRY M , STREET VERN A
CPC分类号： G05B19/04
摘要： Apparatus and method are disclosed whereby loss of power to a process control system will result in overriding the process control system for a preselected time following the restoration of power at the end of the power interruption. In a preferred embodiment, loss of power to a digital programmer controlling at least one chromatographic analyzer results in isolation of the chromatographic analyzer from the sample source upon restoration of the power, backflushing the chromatographic analyzer column and resetting the digital programmer.
摘要翻译： 公开了一种装置和方法，由此在过程控制系统的功率损失将导致在电力中断结束时恢复功率之后的预选时间超过过程控制系统。 在优选的实施方案中，对控制至少一种色谱分析仪的数字程序器的功率损失导致在恢复电源时反应色谱分析仪与样品源的分离，反冲洗色谱分析器列并重新设置数字编程器。
-
搜索结果
2 条记录 (耗时 0.011 秒)
