公开(公告)号：US20180221796A1

公开(公告)日：2018-08-09

申请号：US15749647

申请日：2016-08-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew P. Bonifas ,  Brock A. Hable ,  Nicholas G. Amell ,  Jaewon Kim ,  Ronald D. Jesme ,  Jeffrey M. Maki ,  Robert E. Astle

IPC: B01D35/143 ,  B01D46/00 ,  B01D46/42 ,  G01R27/04 ,  G01N27/90 ,  C02F1/00 ,  C02F1/48

CPC classification number: B01D35/143 ,  B01D46/0005 ,  B01D46/429 ,  B01D2201/52 ,  C02F1/001 ,  C02F1/485 ,  G01N27/9046 ,  G01R27/04

Abstract: In general, techniques are described for filter media monitoring within a filtration system. The filter media monitoring techniques described herein include, for example, direct contact with the filter media, e.g., a sensor may be located inside a boundary defined by a surface of the filter media, or indirect contact with the filter media, e.g., a sensor may be located outside the boundary defined by the surface of the filter media such that the sensor does not make direct physical contact with the filter media being monitored.

公开(公告)号：US20180165561A1

公开(公告)日：2018-06-14

申请号：US15890526

申请日：2018-02-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Nicholas T. Gabriel ,  Ronald D. Jesme ,  Andrew P. Bonifas

IPC: G06K19/07 ,  G06K7/10

CPC classification number: G06K19/0707 ,  B29C70/78 ,  B29K2083/00 ,  B29K2105/20 ,  B29L2031/3481 ,  G06K7/10356

Abstract: At least some aspects of the present disclosure feature a radio frequency identification (RFID) tag adapted to wirelessly communicate with a remote transceiver. The RFID tag includes a substrate; and first and second circuits disposed on the substrate and comprising respective first and second antennas magnetically coupled to one another. At least some aspects of the present disclosure feature a RFID tag having a plurality of RF circuits, where each RF circuit is electronically coupled to a sensing element.

公开(公告)号：US20180144227A1

公开(公告)日：2018-05-24

申请号：US15861074

申请日：2018-01-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ronald D. Jesme ,  Nicholas T. Gabriel ,  Andrew P. Bonifas

IPC: G06K19/077 ,  G01J5/02 ,  G01K7/00 ,  G01K11/22

CPC classification number: G06K19/0773 ,  G01J5/02 ,  G01K7/00 ,  G01K11/22 ,  G06K19/0723 ,  G06K19/07773

Abstract: A radio frequency (RF) sensing device in an assembly is adapted to wirelessly communicate with a remote transceiver. The sensing device includes a substrate; an antenna disposed on the substrate; an electronic circuit disposed on the substrate and electrically coupled to the antenna; a heating element electrically coupled to the electronic circuit for heating a target area; and a sensing element thermally coupled to the heating element for sensing a temperature of the heating element. The RF sensing device is configured to wirelessly receive a power and provides the power to the heating element.

公开(公告)号：US20170234818A1

公开(公告)日：2017-08-17

申请号：US15521757

申请日：2015-11-02

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ronald D. Jesme ,  Andrew P. Bonifas ,  Nicholas T. Gabriel ,  Anthony J. Nowicki

IPC: G01N25/56 ,  H02J50/20 ,  A61B5/00 ,  G01F23/22

Abstract: At least some aspects of the present disclosure feature an RF hydration sensor in an assembly, comprises a substrate; an antenna disposed on the substrate; an RF circuit electrically coupled to the antenna; a thermal source electrically coupled to the RF circuit for changing a thermal condition of a target area; and a sensing element thermally coupled to the thermal source for sensing a temperature of the thermal source. The RF hydration sensor wirelessly receives a power from a remote transceiver and provides at least part of the power to the thermal source.

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：US20170234740A1

公开(公告)日：2017-08-17

申请号：US15504409

申请日：2015-08-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

IPC: G01K7/32 ,  G01K7/36 ,  A61L2/28 ,  G01K11/06

CPC classification number: G01K7/32 ,  A61L2/28 ,  G01K7/36 ,  G01K11/06

Abstract: Some aspects of the present disclosure feature a sensing device comprising a magnetic bias layer, a resonator, a spacer, and an environmental change receptor. The environmental change receptor is disposed on a surface of the resonator. The mass of the environmental change receptor is changed in response to a change in environment. The resonant frequency of the sensing device shifts in response to the mass change of the environmental change receptor.