公开(公告)号：US20120086502A1

公开(公告)日：2012-04-12

申请号：US13326917

申请日：2011-12-15

Applicant: Patrick G. Smith

Inventor： Patrick G. Smith

IPC: G11C5/14 ,  G01N27/30

CPC classification number: G01N27/404 ,  G01N33/007

Abstract: An electrochemical gas sensor testing device that includes a test signal generator that generates a multiplexed signal that includes a first test signal that includes alternating current (AC) and is free from a direct current (DC) component and a second signal that includes a DC bias voltage, an electrochemical cell that includes a counter electrode, a sensing electrode, and an electrolyte, the counter electrode and the sensing electrode being in electrical communication with the electrolyte and each other, the counter electrode being in electrical communication with the signal generator to receive the multiplexed signal generated by the signal generator, and a processor that receives an AC signal from the sensing electrode and that analyzes the AC signal.

Abstract translation: 一种电化学气体传感器测试装置，其包括产生多路复用信号的测试信号发生器，所述多路复用信号包括包含交流电（AC）并且不含直流（DC）分量的第一测试信号和包括直流偏置的第二信号 电压，包括对电极，感测电极和电解质的电化学电池，所述对电极和所述感测电极与所述电解质彼此电连通，所述对电极与所述信号发生器电连通以接收 由信号发生器产生的多路复用信号以及从感测电极接收AC信号并分析AC信号的处理器。

公开(公告)号：US4742248A

公开(公告)日：1988-05-03

申请号：US66191

申请日：1987-06-25

Applicant: Patrick G. Smith ,  B. Hubert Pinckaers

Inventor： Patrick G. Smith ,  B. Hubert Pinckaers

IPC: G01R23/15 ,  G01R29/027 ,  H03K5/1252 ,  H03K5/22

CPC classification number: H03K5/1252 ,  G01R23/15 ,  G01R29/027

Abstract: A random signal isolation circuit connectable to a source of signal generation wherein signals of interest tend to occur at relatively closely spaced intervals, and noise signals tend to occur at random time intervals, including a first multivibrator trigger circuit which triggers on the falling edge of a received signal, and a second multivibrator trigger circuit which triggers on a rising edge of a received signal, the first multivibrator circuit being connected when triggered to enable the second multivibrator trigger to receive subsequent received signals. The first multivibrator trigger circuit is activated over a predetermined time delay, and at the end of the time delay disables the second multivibrator trigger circuit.

Abstract translation: 可连接到信号源的随机信号隔离电路，其中感兴趣的信号倾向于以相对紧密间隔的间隔发生，并且噪声信号倾向于以随机时间间隔发生，包括在第一多谐振荡器触发电路 以及第二多谐振荡器触发电路，其在接收信号的上升沿触发，所述第一多谐振荡器电路在触发时被连接，以使所述第二多谐振荡器触发器接收后续的接收信号。 第一多谐振荡器触发电路在预定的时间延迟下被激活，并且在时间延迟结束时禁用第二多谐振荡器触发电路。

公开(公告)号：US09057690B2

公开(公告)日：2015-06-16

申请号：US13326917

申请日：2011-12-15

Applicant: Patrick G. Smith

Inventor： Patrick G. Smith

IPC: G01N27/30 ,  G01N27/404 ,  G01N33/00

CPC classification number: G01N27/404 ,  G01N33/007

Abstract: An electrochemical gas sensor testing device that includes a test signal generator that generates a multiplexed signal that includes a first test signal that includes alternating current (AC) and is free from a direct current (DC) component and a second signal that includes a DC bias voltage, an electrochemical cell that includes a counter electrode, a sensing electrode, and an electrolyte, the counter electrode and the sensing electrode being in electrical communication with the electrolyte and each other, the counter electrode being in electrical communication with the signal generator to receive the multiplexed signal generated by the signal generator, and a processor that receives an AC signal from the sensing electrode and that analyzes the AC signal.

Abstract translation: 一种电化学气体传感器测试装置，其包括产生多路复用信号的测试信号发生器，所述多路复用信号包括包含交流电（AC）并且不含直流（DC）分量的第一测试信号和包括直流偏置的第二信号 电压，包括对电极，感测电极和电解质的电化学电池，所述对电极和所述感测电极与所述电解质彼此电连通，所述对电极与所述信号发生器电连通以接收 由信号发生器产生的复用信号，以及从感测电极接收AC信号并分析AC信号的处理器。

公开(公告)号：US20090242398A1

公开(公告)日：2009-10-01

申请号：US12056876

申请日：2008-03-27

Applicant: Patrick G. Smith

Inventor： Patrick G. Smith

IPC: G01N27/26 ,  G01N37/00

CPC classification number: G01N27/404 ,  G01N33/007

Abstract: An electrochemical gas sensor testing device that includes a test signal generator that generates a multiplexed signal that includes a first test signal that includes alternating current (AC) and is free from a direct current (DC) component and a second signal that includes a DC bias voltage, an electrochemical cell that includes a counter electrode, a sensing electrode, and an electrolyte, the counter electrode and the sensing electrode being in electrical communication with the electrolyte and each other, the counter electrode being in electrical communication with the signal generator to receive the multiplexed signal generated by the signal generator, and a processor that receives an AC signal from the sensing electrode and that analyzes the AC signal.

Abstract translation: 一种电化学气体传感器测试装置，其包括产生多路复用信号的测试信号发生器，所述多路复用信号包括包含交流电（AC）并且不含直流（DC）分量的第一测试信号和包括直流偏置的第二信号 电压，包括对电极，感测电极和电解质的电化学电池，所述对电极和所述感测电极与所述电解质彼此电连通，所述对电极与所述信号发生器电连通以接收 由信号发生器产生的复用信号，以及从感测电极接收AC信号并分析AC信号的处理器。

公开(公告)号：US08097146B2

公开(公告)日：2012-01-17

申请号：US12056876

申请日：2008-03-27

Applicant: Patrick G. Smith

Inventor： Patrick G. Smith

IPC: G01N27/404

CPC classification number: G01N27/404 ,  G01N33/007

Abstract: An electrochemical gas sensor testing device that includes a test signal generator that generates a multiplexed signal that includes a first test signal that includes alternating current (AC) and is free from a direct current (DC) component and a second signal that includes a DC bias voltage, an electrochemical cell that includes a counter electrode, a sensing electrode, and an electrolyte, the counter electrode and the sensing electrode being in electrical communication with the electrolyte and each other, the counter electrode being in electrical communication with the signal generator to receive the multiplexed signal generated by the signal generator, and a processor that receives an AC signal from the sensing electrode and that analyzes the AC signal.

Abstract translation: 一种电化学气体传感器测试装置，其包括产生多路复用信号的测试信号发生器，所述多路复用信号包括包含交流电（AC）并且不含直流（DC）分量的第一测试信号和包括直流偏置的第二信号 电压，包括对电极，感测电极和电解质的电化学电池，所述对电极和所述感测电极与所述电解质彼此电连通，所述对电极与所述信号发生器电连通以接收 由信号发生器产生的复用信号，以及从感测电极接收AC信号并分析AC信号的处理器。

公开(公告)号：US07132657B2

公开(公告)日：2006-11-07

申请号：US10774910

申请日：2004-02-09

Applicant: Patrick G. Smith

Inventor： Patrick G. Smith

IPC: G01J5/02 ,  G01N21/35 ,  G01N21/61

CPC classification number: G01N21/85 ,  G01N21/3504 ,  G01N2021/3129 ,  G01N2021/3137 ,  G01N2021/3148 ,  G01N2021/3185 ,  G01N2021/8557 ,  G01N2021/8578

Abstract: A gas detector that includes at least one source of infrared radiation, at least two analytical detectors, each analytical detector adapted to provide an output signal indicative of a first gas of interest and positioned to receive radiation from the source of radiation, at least one reference detector adapted to receive radiation of a predetermined wavelength, a sample chamber for receiving a gaseous sample, and an optical path length disposed between the source of radiation and the analytical detectors and passing through the sample chamber.

Abstract translation: 包括至少一个红外辐射源的气体检测器，至少两个分析检测器，每个分析检测器适于提供指示感兴趣的第一气体的输出信号，并定位成接收来自辐射源的辐射，至少一个参考 检测器，其适于接收预定波长的辐射，用于接收气体样品的样品室，以及设置在辐射源和分析检测器之间并通过样品室的光路长度。

公开(公告)号：US5266793A

公开(公告)日：1993-11-30

申请号：US875275

申请日：1992-04-28

Applicant: Patrick G. Smith

Inventor： Patrick G. Smith

IPC: H03F3/08 ,  H01J40/14

CPC classification number: H03F3/087

Abstract: A modulated photoamplifier precludes false output signals and oscillations in the event of component failure. The photoamplifier converts modulated electromagnetic energy into voltage pulses. A phototransistor receives the modulated electromagnetic energy and generates corresponding current pulses. A differential amplifier with negative feedback receives the current pulses and produces the corresponding amplified voltage pulses. A capacitor within the feedback network produces optimum gain at the frequency of the modulated electromagnetic energy. A failure of any component within the photoamplifier removes its ability to generate voltage pulses. Therefore, the photoamplifier precludes false output signals and fails to a safe condition in response to the component failure.

Abstract translation: 调制的光电放大器在组件故障的情况下排除了错误的输出信号和振荡。 光电放大器将调制的电磁能转换为电压脉冲。 光电晶体管接收调制的电磁能并产生相应的电流脉冲。 具有负反馈的差分放大器接收电流脉冲并产生相应的放大电压脉冲。 反馈网络内的电容器在调制电磁能的频率下产生最佳增益。 光电放大器内的任何元件的故障都消除了产生电压脉冲的能力。 因此，光电放大器排除了错误的输出信号，并且响应于组件故障而不能安全地进行。