公开(公告)号：US20170234741A1

公开(公告)日：2017-08-17

申请号：US15504428

申请日：2015-08-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： David P. Erickson ,  Chaodi Li ,  Cheryl Lee Senger Elsbernd ,  Jia Hu ,  Andrew P. Bonifas ,  Orlin B. Knudson ,  Richard L. Rylander

IPC: G01K7/32 ,  G01K7/36 ,  A61L2/28 ,  G01K11/00

CPC classification number: G01K7/32 ,  A61L2/28 ,  G01K7/36 ,  G01K11/00 ,  G01N19/10 ,  G01N29/14 ,  G01N29/2412 ,  G01N29/46 ,  G01R33/0052 ,  G01R33/0286

Abstract: Some aspects of the present disclosure feature a sensing device comprising a magnetic bias layer, a resonator, a spacer, and a housing. The spacer includes an environmental change receptor. The thickness of the environmental change receptor rapidly increases in response to a change to an environment variable.

公开(公告)号：US20170227452A1

公开(公告)日：2017-08-10

申请号：US15328244

申请日：2015-08-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Richard L. Rylander ,  Andrew P. Bonifas ,  David P. Erickson ,  Jia Hu ,  Stephen J. Willett ,  Chaodi Li ,  Orlin B. Knudson

IPC: G01N19/10 ,  G01K7/32 ,  G01K7/36 ,  G01K11/06

CPC classification number: G01N19/10 ,  G01K7/32 ,  G01K7/36 ,  G01K11/06

Abstract: Some aspects of the present disclosure feature a system for sensing a change in environment comprising a MMR sensor and a reader. The MMR sensor is configured to be disposed in the environment. The MMR sensor comprises a magnetic bias layer, a resonator, a spacer, and an environmental change receptor. The reader is configured to measure a frequency characteristic of the MMR sensor after the environmental variable changes and the change to the environmental variable is evaluated based on the frequency characteristic.

公开(公告)号：US10401233B2

公开(公告)日：2019-09-03

申请号：US15504428

申请日：2015-08-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： David P. Erickson ,  Chaodi Li ,  Cheryl Lee Senger Elsbernd ,  Jia Hu ,  Andrew P. Bonifas ,  Orlin B. Knudson ,  Richard L. Rylander

IPC: G01K7/32 ,  G01N19/10 ,  G01N29/14 ,  G01N29/24 ,  G01N29/46 ,  G01R33/00 ,  G01R33/028 ,  A61L2/28 ,  G01K7/36 ,  G01K11/00

Abstract: Some aspects of the present disclosure feature a sensing device comprising a magnetic bias layer, a resonator, a spacer, and a housing. The spacer includes an environmental change receptor. The thickness of the environmental change receptor rapidly increases in response to a change to an environment variable.

公开(公告)号：US10228319B2

公开(公告)日：2019-03-12

申请号：US15328244

申请日：2015-08-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Richard L. Rylander ,  Andrew P. Bonifas ,  David P. Erickson ,  Jia Hu ,  Stephen J. Willett ,  Chaodi Li ,  Orlin B. Knudson

IPC: G01N19/10 ,  G01K7/32 ,  G01K7/36 ,  G01K11/06

Abstract: Some aspects of the present disclosure feature a system for sensing a change in environment comprising a MMR sensor and a reader. The MMR sensor is configured to be disposed in the environment. The MMR sensor comprises a magnetic bias layer, a resonator, a spacer, and an environmental change receptor. The reader is configured to measure a frequency characteristic of the MMR sensor after the environmental variable changes and the change to the environmental variable is evaluated based on the frequency characteristic.