公开(公告)号：US09709544B2

公开(公告)日：2017-07-18

申请号：US14621706

申请日：2015-02-13

Applicant: Rosemount Analytical Inc.

Inventor： Henryk Kozlow ,  Lucjan Antoni Oleszczuk

IPC: G01N33/00

CPC classification number: G01N33/007 ,  G01N27/12 ,  G01N33/0006

Abstract: A metal oxide semiconductor-based toxic gas detector is provided. The metal oxide semiconductor-based detector includes a metal oxide semiconductor-based gas sensor that has an electrical characteristic that varies with concentration of a toxic gas. Measurement circuitry is coupled to the metal oxide semiconductor-based gas sensor and is configured to measure the electrical characteristic and provide a digital indication of the measured electrical characteristic. A controller is coupled to the measurement circuitry and is configured to provide a toxic gas output based on the digital indication. The controller is also configured to provide a diagnostic output relative to the metal oxide semiconductor-based sensor based on fluctuations of the measured electrical characteristic over time.

公开(公告)号：US20140356971A1

公开(公告)日：2014-12-04

申请号：US14288636

申请日：2014-05-28

Applicant: Rosemount Analytical Inc.

Inventor： Henryk Kozlow ,  Alastair Kerr Muir ,  Todd Christopher Phelps ,  Lucjan Antoni Oleszczuk

IPC: G01N33/00

CPC classification number: G01N33/0044 ,  G01N27/12 ,  G01N27/4141 ,  Y10T436/184

Abstract: A hydrogen sulfide gas detector is provided. The detector includes a metal oxide semiconductor-based hydrogen sulfide gas sensor having an electrical characteristic that varies with hydrogen sulfide gas concentration. Measurement circuitry is coupled to the metal oxide semiconductor-based hydrogen sulfide gas detector to measure the electrical characteristic. A controller is coupled to the measurement circuitry and is configured to receive an indication of the electrical characteristic of the hydrogen sulfide gas sensor as well as an indication of ambient humidity. The controller is configured to provide a compensated hydrogen sulfide gas concentration output based on the indication of the electrical characteristic of the hydrogen sulfide gas sensor, an indication of ambient temperature, and the indication of ambient humidity.

Abstract translation: 提供硫化氢气体检测器。 检测器包括具有随着硫化氢气体浓度变化的电特性的基于金属氧化物半导体的硫化氢气体传感器。 测量电路耦合到基于金属氧化物半导体的硫化氢气体检测器以测量电特性。 控制器耦合到测量电路并且被配置为接收硫化氢气体传感器的电特性的指示以及环境湿度的指示。 控制器被配置为基于硫化氢气体传感器的电气特性的指示，环境温度的指示和环境湿度的指示来提供补偿的硫化氢气体浓度输出。

公开(公告)号：US20150233880A1

公开(公告)日：2015-08-20

申请号：US14621706

申请日：2015-02-13

Applicant: Rosemount Analytical Inc.

Inventor： Henryk Kozlow ,  Lucjan Antoni Oleszczuk

IPC: G01N33/00

CPC classification number: G01N33/007 ,  G01N27/12 ,  G01N33/0006

Abstract: A metal oxide semiconductor-based toxic gas detector is provided. The metal oxide semiconductor-based detector includes a metal oxide semiconductor-based gas sensor that has an electrical characteristic that varies with concentration of a toxic gas. Measurement circuitry is coupled to the metal oxide semiconductor-based gas sensor and is configured to measure the electrical characteristic and provide a digital indication of the measured electrical characteristic. A controller is coupled to the measurement circuitry and is configured to provide a toxic gas output based on the digital indication. The controller is also configured to provide a diagnostic output relative to the metal oxide semiconductor-based sensor based on fluctuations of the measured electrical characteristic over time.

Abstract translation: 提供了一种基于金属氧化物半导体的有毒气体检测器。 基于金属氧化物半导体的检测器包括具有随着有毒气体浓度而变化的电特性的基于金属氧化物半导体的气体传感器。 测量电路耦合到基于金属氧化物半导体的气体传感器，并且被配置为测量电特性并提供所测量的电特性的数字指示。 控制器耦合到测量电路并且被配置为基于数字指示提供有毒气体输出。 控制器还被配置为基于随时间推移的测量的电特性的波动来提供相对于基于金属氧化物半导体的传感器的诊断输出。

公开(公告)号：US20140182358A1

公开(公告)日：2014-07-03

申请号：US14140792

申请日：2013-12-26

Applicant: ROSEMOUNT ANALYTICAL INC.

Inventor： Chang Dong Feng ,  Henryk Kozlow

IPC: G01N1/40

CPC classification number: G01N1/4022 ,  G01N1/22 ,  G01N33/0011 ,  G01N2001/2261

Abstract: A gas detection system is provided. The system includes a sample gas inlet configured to receive a sample of gas and a sample chamber operably coupled to the sample gas inlet. The sample chamber has at least one gas sensor disposed therein. The gas sensor provides a gas sensor output indicative of a species of interest in the sample of gas. A controller is coupled to the at least one gas sensor and is configured to provide information related to the species of interest based on the gas sensor output. A moisture removal device is disposed to receive the sample of gas and remove moisture from the sample before the sample reaches the at least one gas sensor.

Abstract translation: 提供气体检测系统。 该系统包括被配置为接收气体样本的样品气体入口和可操作地耦合到样品气体入口的样品室。 样品室具有设置在其中的至少一个气体传感器。 气体传感器提供指示气体样品中感兴趣的物种的气体传感器输出。 控制器耦合到至少一个气体传感器，并且被配置为基于气体传感器输出提供与感兴趣物种相关的信息。 设置除湿装置以在样品到达至少一个气体传感器之前接收气体样品并从样品中除去水分。