公开(公告)号：US11231311B2

公开(公告)日：2022-01-25

申请号：US16914092

申请日：2020-06-26

Applicant: PERCEPTIVE SENSOR TECHNOLOGIES LLC

Inventor： James M. Heim ,  Earl J. Crochet ,  William Coleman ,  Joel Burcham ,  Lazar Bivolarsky

IPC: G01F23/296 ,  G08B21/18

Abstract: Systems and methods for determining a fill level of a fluid within a fluid vessel, an identity of the fluid, and/or a condition of the vessel wall are disclosed. To determine a fluid fill level, at least one acoustic sensor is positionable substantially on an exterior sidewall of a vessel containing fluid. A computerized device is in communication with the at least one acoustic sensor. A processor of the computerized device receives a detection signal from the at least one acoustic sensor and communicates an alert of the detection signal, which can be used to identify a fill level of the fluid. The detection signal, along with other measured information, can be used to identify the material type of the fluid. A condition of the vessel wall may be determined based on an attenuation signal when two acoustic sensors are used, one being positioned angular to the vessel wall.

公开(公告)号：US20200343438A1

公开(公告)日：2020-10-29

申请号：US16955215

申请日：2018-12-20

Applicant: B & L Sensor Technologies, LLC

Inventor： Lawrence FISHMAN ,  Ching-Yu LIN

IPC: H01L41/087 ,  H01L41/08 ,  H01L41/113 ,  H01L41/257

Abstract: A hydrophone may include a first piezoelectric cable including alternating sections of positive polarity and negative polarity, and a second piezoelectric cable including alternating sections of negative polarity and positive polarity. At least a portion of each section of positive polarity of the first piezoelectric cable may be bonded or adhered to at least a portion of a section of negative polarity of the second piezoelectric cable. A method of manufacturing a hydrophone may include winding or coiling a first piezoelectric cable and a second piezoelectric cable at the same time to create a series of wound sections including cables, the wound sections alternating with a series of not wound sections including the cables.

公开(公告)号：US09947203B2

公开(公告)日：2018-04-17

申请号：US15615483

申请日：2017-06-06

Applicant: Sensor Technologies, LLC

Inventor： Brad W. Ansley

IPC: G01N27/416 ,  G08B21/12 ,  H04N7/18 ,  G01N33/00 ,  A61F13/42 ,  G01N27/407 ,  G01N33/497 ,  A61B5/00

CPC classification number: G08B21/12 ,  A61B5/6889 ,  A61B5/6891 ,  A61F13/42 ,  A61F2013/424 ,  G01N27/407 ,  G01N27/416 ,  G01N33/0016 ,  G01N33/0031 ,  G01N33/0062 ,  G01N33/0075 ,  G01N33/497 ,  G01N2033/4975 ,  G08B25/08 ,  H04N7/185

Abstract: A room monitoring device designed and intended to detect a bowel movement (BM) of a person occupying the room, such as a baby or infant or an adult with special needs or in a care facility. The device tests the air for particular substances such as, but not limited to, methane and hydrogen sulfide. The test is performed multiple times per minute to reduce the chances of a false-positive detection. Once the device detects a positive BM, it alerts a user via Wi-Fi message, SMS text message, visual alerts (e.g., flashing lights), and/or audio alerts. This device may be paired with existing monitoring devices, such as a baby monitor with a remote camera.

公开(公告)号：US20170278373A1

公开(公告)日：2017-09-28

申请号：US15615483

申请日：2017-06-06

Applicant: Sensor Technologies, LLC

Inventor： Brad W. Ansley

IPC: G08B21/12 ,  H04N7/18 ,  G01N33/00 ,  G01N27/416

CPC classification number: G08B21/12 ,  A61B5/6889 ,  A61B5/6891 ,  A61F13/42 ,  A61F2013/424 ,  G01N27/407 ,  G01N27/416 ,  G01N33/0016 ,  G01N33/0031 ,  G01N33/0062 ,  G01N33/0075 ,  G01N33/497 ,  G01N2033/4975 ,  G08B25/08 ,  H04N7/185

Abstract: A room monitoring device designed and intended to detect a bowel movement (BM) of a person occupying the room, such as a baby or infant or an adult with special needs or in a care facility. The device tests the air for particular substances such as, but not limited to, methane and hydrogen sulfide. The test is performed multiple times per minute to reduce the chances of a false-positive detection. Once the device detects a positive BM, it alerts a user via Wi-Fi message, SMS text message, visual alerts (e.g., flashing lights), and/or audio alerts. This device may be paired with existing monitoring devices, such as a baby monitor with a remote camera.

公开(公告)号：US11474005B2

公开(公告)日：2022-10-18

申请号：US17057256

申请日：2019-05-23

Applicant: Colorado State University Research Foundation ,  Access Sensor Technologies LLC

Inventor： John Volckens ,  Daniel D. Miller-Lionberg ,  Josephine Hofstetter ,  Casey William Quinn ,  Ellison Carter ,  David Leith

IPC: G01N1/22 ,  G01N1/24

Abstract: A portable sampling device includes a sampling housing at least partially enclosing an inner chamber; at least one pumping element disposed within the inner chamber and configured to facilitate airflow through the device; and at least one gas sensor disposed within the inner chamber and configured to detect and/or characterize one or more gases in the airflow.

公开(公告)号：US11143533B2

公开(公告)日：2021-10-12

申请号：US17148122

申请日：2021-01-13

Applicant: PERCEPTIVE SENSOR TECHNOLOGIES LLC

Inventor： James M. Heim

IPC: G01F1/66 ,  G01F1/688 ,  G01F25/00

Abstract: Systems and methods for determining a weight of a quantity of fluid, or a flow rate of the fluid by weight. An acoustic sensor positioned on an exterior wall of a vessel containing the fluid determines a fill level of the fluid. A computerized device calculates a weight of the quantity of fluid using a size of the vessel, the determined fill level, a temperature of the fluid, and the fluid identity and/or a fluid density. Flow rate of the fluid through a pipe is determined using two or more acoustic sensors positioned at different locations on a pipe, and a temperature sensor. A computer calculates a differential time of flight of the fluid based on readings of the acoustic sensor, a distance therebetween, the temperature sensor, the pipe volume, and the fluid identity and/or a fluid density. A flow by weight of the quantity of fluid is determined.

公开(公告)号：US20210190646A1

公开(公告)日：2021-06-24

申请号：US17057256

申请日：2019-05-23

Applicant: Colorado State University Research Foundation ,  Access Sensor Technologies LLC

Inventor： John Volckens ,  Daniel D. Miller-Lionberg ,  Josephine Hofstetter ,  Casey William Quinn ,  Carter Ellison ,  David Leith

IPC: G01N1/22 ,  G01N1/24

Abstract: A portable sampling device includes a sampling housing at least partially enclosing an inner chamber; at least one pumping element disposed within the inner chamber and configured to facilitate airflow through the device; and at least one gas sensor disposed within the inner chamber and configured to detect and/or characterize one or more gases in the airflow.

公开(公告)号：US20240344874A1

公开(公告)日：2024-10-17

申请号：US18439972

申请日：2024-02-13

Applicant: Aloft Sensor Technologies LLC

Inventor： Ryan Kincaid ,  David Brown

IPC: G01F23/284 ,  G01F23/80

CPC classification number: G01F23/284 ,  G01F23/802

Abstract: Disclosed herein are devices, systems, and methods for accurately determining fluid level using Ultra Wideband (UWB) positioning or localization. UWB utilizes a radio-frequency (RF) technology to enable the accurate measurement of the time-of-flight of a radio signal and UWB positioning can operate in Time-Difference-of-Arrival (TDoA) mode, Two-Way-Ranging (TWR) mode, and Phase-Difference-of-Arrival (PDoA) mode. The systems disclosed herein include multiple anchor devices having a UWB antenna(s) and positioned in fixed location(s) over the fluid to be measured. The anchor devices serve as reference points for UWB communication with a remote float device, which emits RF signals and floats on the surface of the fluid to be measured. The anchor devices may include, or be in communication with, a processor which receives and/or measures RF signals, generates timestamps, calculates distance(s) between the remote float device and an anchor device, calculates fluid level, calculates an angle-of-arrival (AoA), or any combination thereof.

公开(公告)号：US12053164B2

公开(公告)日：2024-08-06

申请号：US17127520

申请日：2020-12-18

Applicant: Access Sensor Technologies LLC ,  Colorado State University Research Foundation

Inventor： David Leith ,  John Volckens ,  Christian L'Orange ,  Daniel D. Miller-Lionberg

IPC: A61B10/00 ,  G01N1/22 ,  G01N15/02

CPC classification number: A61B10/00 ,  G01N1/2208 ,  G01N1/2211 ,  G01N1/2273 ,  G01N15/0255 ,  A61B2010/0087 ,  G01N2015/0261

Abstract: A portable sampler, the sampler including a sampler assembly having a housing that includes a receiver defined therein for interchangeably receiving a number of removable inlet assemblies, the removable inlet assemblies including a respirable inlet assembly and a thoracic inlet assembly. The respirable inlet assembly includes a hybrid cyclone assembly, the hybrid cyclone assembly including an impaction stage and a cyclone in series. The thoracic inlet assembly includes an inlet slot configured to function as a size-selective inlet. Another thoracic inlet assembly includes a housing having a number of openings configured to receive a sample airflow; an inlet insert through which an inlet aperture is defined; a prequalification chamber defined between a lower surface of the housing and an upper surface of the inlet insert; and a protrusion extending downward from the lower surface of the housing into the inlet aperture of the inlet insert to from an inlet slot.

公开(公告)号：US11898892B2

公开(公告)日：2024-02-13

申请号：US17672581

申请日：2022-02-15

Applicant: Aloft Sensor Technologies LLC

Inventor： Ryan Kincaid ,  David Brown

IPC: G01F23/284 ,  G01F23/80

CPC classification number: G01F23/284 ,  G01F23/802

Abstract: Disclosed herein are devices, systems, and methods for accurately determining fluid level using Ultra Wideband (UWB) positioning or localization. UWB utilizes a radio-frequency (RF) technology to enable the accurate measurement of the time-of-flight of a radio signal and UWB positioning can operate in Time-Difference-of-Arrival (TDoA) mode, Two-Way-Ranging (TWR) mode, and Phase-Difference-of-Arrival (PDoA) mode. The systems disclosed herein include multiple anchor devices having a UWB antenna(s) and positioned in fixed location(s) over the fluid to be measured. The anchor devices serve as reference points for UWB communication with a remote float device, which emits RF signals and floats on the surface of the fluid to be measured. The anchor devices may include, or be in communication with, a processor which receives and/or measures RF signals, generates timestamps, calculates distance(s) between the remote float device and an anchor device, calculates fluid level, calculates an angle-of-arrival (AoA), or any combination thereof.