公开(公告)号：US20180017589A1

公开(公告)日：2018-01-18

申请号：US15715610

申请日：2017-09-26

Applicant: MSA TECHNOLOGY, LLC

Inventor： Towner Bennett Scheffler ,  Michael Alvin Brown ,  Andrew E. Nalepa ,  Brian Keith Davis

IPC: G01N35/00 ,  G01N33/497 ,  G01N33/00

CPC classification number: G01N35/00693 ,  G01N33/007 ,  G01N33/497

Abstract: A method of operating a sensor system including at least one sensor for detecting an analyte gas and a control system includes electronically interrogating the sensor to determine the operational status thereof and upon determining that the operational status is non-conforming based upon one or more predetermined thresholds, the control system initiating an automated calibration of the sensor with the analyte gas or a simulant gas.

公开(公告)号：US20170102352A1

公开(公告)日：2017-04-13

申请号：US15388132

申请日：2016-12-22

Applicant: MSA Technology, LLC

Inventor： Towner Bennett Scheffler ,  Michael Alvin Brown

IPC: G01N27/406 ,  G01N33/00 ,  G01N33/497

CPC classification number: G01N27/4065 ,  G01N27/304 ,  G01N33/007 ,  G01N33/497

Abstract: A system for detecting an analyte gas including a system housing having an inlet system, an electrochemical gas sensor within the housing and in fluid connection with the inlet system, the electrochemical sensor including a working electrode responsive to the analyte gas, and a control system in electrical connection with the working electrode. The control system is operative to bias the working electrode at a first potential at which the electrochemical gas sensor is responsive to the analyte gas and operative to bias the working electrode at a second potential, different from the first potential, at which the electrochemical gas sensor is sensitive to a driving force created in the vicinity of the inlet system to test at least one transport path of the system.