公开(公告)号：US20170227498A1

公开(公告)日：2017-08-10

申请号：US15394534

申请日：2016-12-29

Applicant: MSA TECHNOLOGY, LLC

Inventor： JERIN MILLER ,  RYAN ALAN SHERRY ,  ROBERT KEVIN SEXTON ,  ROBERT ERIC UBER

IPC: G01N29/04 ,  G01N33/00

Abstract: A method of detecting at least a partial blockage in a porous member separating an inner chamber of a device having a gas sensor responsive to an analyte positioned within the inner chamber and an ambient environment includes emitting pressure waves within the inner chamber and measuring a response via a sensor responsive to pressure waves positioned within the inner chamber.

公开(公告)号：US20170219515A1

公开(公告)日：2017-08-03

申请号：US15012919

申请日：2016-02-02

Applicant: MSA TECHNOLOGY, LLC

Inventor： BRIAN KEITH DAVIS ,  MICHAEL ALVIN BROWN ,  JERIN MILLER ,  RYAN ALAN SHERRY

IPC: G01N27/407

CPC classification number: G01N27/4074 ,  G01N27/404 ,  G01N27/4073 ,  G01N33/0006

Abstract: A method of operating a sensor to detect an analyte in an environment, wherein the sensor includes a working electrode and circuitry in operative connection with the working electrode, includes performing a sensor interrogation cycle including applying electrical energy to the working electrode to generate a non-faradaic current, measuring a response to the generation of the non-faradaic current to determine a state of the sensor, and actively controlling the circuitry to dissipate the non-faradaic current.

公开(公告)号：US20170227499A1

公开(公告)日：2017-08-10

申请号：US15394566

申请日：2016-12-29

Applicant: MSA TECHNOLOGY, LLC

Inventor： JERIN MILLER ,  RYAN ALAN SHERRY ,  ROBERT KEVIN SEXTON ,  ROBERT ERIC UBER

IPC: G01N29/04 ,  G01N33/00

Abstract: A method of detecting at least a partial blockage in a porous member separating an inner chamber of a device having a gas sensor responsive to an analyte positioned within the inner chamber and an ambient environment includes emitting pressure waves within the inner chamber and measuring a change in phase of a response via a sensor responsive to pressure waves.