公开(公告)号：US12111201B2

公开(公告)日：2024-10-08

申请号：US17636738

申请日：2020-09-07

Applicant: TDK Electronics AG

Inventor： Michael Gebhart ,  Stefan Sax ,  Thomas Koidl ,  Michael Pirolt

IPC: G01F23/2962

CPC classification number: G01F23/2962

Abstract: In an embodiment a sensor system includes a housing, an electronic circuit and an ultrasonic distance sensor, wherein the electronic circuit and the ultrasonic distance sensor are arranged in the housing, and wherein the sensor system is configured to measure a distance between the sensor system and a surface of a material in a container by an echo propagation time of an ultrasonic burst in air.

公开(公告)号：US20240302199A1

公开(公告)日：2024-09-12

申请号：US18258354

申请日：2021-12-23

Applicant: Pauline HORAN

Inventor： Pauline HORAN

IPC: G01F23/2962

CPC classification number: G01F23/2962

Abstract: The present disclosure is directed towards a system and method for determining a change of volume within a container based on the surface area of material in the container.

公开(公告)号：US12044695B2

公开(公告)日：2024-07-23

申请号：US17092357

申请日：2020-11-09

Applicant: ABB Schweiz AG

Inventor： Gerrit Held ,  Stefano Marano ,  Miklos Lenner ,  Frank Kassubek

IPC: G01N9/24 ,  G01F23/2962 ,  G01N9/26

CPC classification number: G01N9/24 ,  G01F23/2962 ,  G01N9/26

Abstract: A measurement system for determining a density ρ or a compressibility κ of a liquid medium in a vessel includes: at least one pressure sensor for measuring a hydrostatic pressure Δp of the liquid medium as a measured hydrostatic pressure Δp; at least one ultrasound sensor for measuring a first time of flight t1 along a first propagation path comprising a point at a level surface of the liquid medium, and for measuring a second time of flight t2 along a second propagation path, which is different from the first propagation path; and a control unit for determining the density ρ or the compressibility κ of the liquid medium based on the measured hydrostatic pressure Δp, the first time of flight t1, and the second time of flight t2.

公开(公告)号：US20230273064A1

公开(公告)日：2023-08-31

申请号：US18245204

申请日：2021-08-16

Applicant: Endress+Hauser SE+Co. KG

Inventor： Lars Karweck ,  Ralf Armbruster ,  Marc Andreas Schlachter

IPC: G01F25/20 ,  G01F23/284 ,  G01F23/2962

CPC classification number: G01F25/20 ,  G01F23/284 ,  G01F23/2962

Abstract: A method for calibrating a modular fill-level gauge based on a capacitive, an ultrasonic, or a radar based measuring principle and including components as follows: a sensor module, an electronics module and a transmission module comprises connecting the transmission module with the sensor module, calibrating the sensor module, and instructing the electronics module relative to the installed height. This simplifies the calibrating of the fill-level gauge, since it does not have to be applied to the entire fill-level gauge but only to the sensor module. In this way, a corresponding calibration setup only needs to be kept at the site of the sensor module manufacture, and not supplementally at the site of the final manufacture, where all modules of the fill-level gauge are put together. Correspondingly, also the possible creating of a calibration protocol is simplified.

公开(公告)号：US11530942B2

公开(公告)日：2022-12-20

申请号：US17229294

申请日：2021-04-13

Applicant: TRUMA GERAETETECHNIK GMBH & CO. KG

Inventor： Johannes Merker ,  Andreas Schmoll ,  Daniel Pless

IPC: G01F23/296 ,  G10K11/00 ,  G01F23/2962

Abstract: The invention relates to a filling level measuring device for measuring the filling level in a container through the wall thereof by means of ultrasound, having an ultrasonic measuring head, a controller, and a fastening device by means of which the filling level measuring device can be fastened to the container such that the ultrasonic measuring head is pressed against the wall of the container. The invention further relates to a method of operating such a filling level measuring device, wherein a sampling rate is used which is situation-dependent. The invention finally relates to an assembly made up of such a filling level measuring device and at least one spacer which can be attached to the lower edge of a container to be provided with the filling level measuring device.

公开(公告)号：US11530939B2

公开(公告)日：2022-12-20

申请号：US16460624

申请日：2019-07-02

Applicant: Michael L. Bolan

Inventor： Michael L. Bolan

IPC: G01F1/684 ,  G01F23/296 ,  G01F23/2962 ,  G01F25/20 ,  G01F1/66 ,  G01F1/002

Abstract: A monitoring apparatus is disclosed that includes a.) at least one acoustic pickup, b.) a sound pressure sensor acoustically coupled to the at least one acoustic pickup, and c.) a computing device interfaced to the sound pressure sensor. The at least one acoustic pickup may be submerged in or located in proximity to flowing fluid. The sound sensor is configured to acquire sound intensity waveforms naturally generated by the flowing fluid as a source of data patterns for training the apparatus as well stimuli used to generate responses about flow conditions. The computing device is configured to quantify flow parameters of the flowing fluid from sound utterances and visual appearances intrinsically expressed by the flow using machine learning models.

公开(公告)号：US20220349742A1

公开(公告)日：2022-11-03

申请号：US17733208

申请日：2022-04-29

Applicant: TEKELEK GROUP HOLDINGS LIMITED

Inventor： Martin Robert LINTZGY ,  Martin Joseph CALLANAN ,  Peter Anthony McCARTHY

IPC: G01F23/296 ,  G01F23/2962

Abstract: An ultrasonic level sensor (1) for monitoring the level of a liquid in a vessel comprises a main housing (3) having a lower part (5) and an upper part (6). An ultrasonic transducer (19) having an output face (25), through which ultrasonic signals are transmitted and received is housed in a sub-housing (39) located in an engagement recess (17) in the lower part (5). A communicating aperture (24) accommodates ultrasonic signals transmitted by the ultrasonic transducer (19) to and from the liquid surface, the level of which is to be monitored. The sub-housing (39) comprises a cylindrical side wall (40) extending upwardly from a protective element (35) for protecting the ultrasonic transducer (19). The protective element (35) comprises a circular disc of resilient material impermeable to corrosive gases and vapours in the vessel, the liquid level of which is being monitored, and comprises a central working portion (48) of diameter similar to that of the output face (25), and an outer peripheral portion (49) extending around the central working portion (48) of thickness greater than the thickness of the central working portion (48). The central working portion (48) is of constant thickness of approximately 0.35 mm and in its relaxed state is convex when viewed from the ultrasonic transducer (19), and is deformable into a planar configuration to abut and vibrate in unison with the output face (25) of the ultrasonic transducer (19) to minimise attenuation of the ultrasonic signals.

公开(公告)号：US11431596B1

公开(公告)日：2022-08-30

申请号：US17174945

申请日：2021-02-12

Applicant: Hach Company

Inventor： Vishnu Vardhanan Rajasekharan ,  Russell Young

IPC: H04L43/065 ,  G06Q10/00 ,  H04L41/0681 ,  G01F23/2962 ,  G01F1/05 ,  G01F15/075

Abstract: An embodiment provides a method for real-time management of device maintenance utilizing quality metrics defined based upon inputs of the device, the method including: receiving inputs corresponding to a particular device, wherein the particular device provides measurements of a parameter of a fluid; generating, from the inputs, quality metrics for and unique to the particular device; monitoring the particular device while the particular device is deployed, wherein the monitoring occurs in view of the quality metrics; and triggering, responsive to detecting information corresponding to the particular device is violating at least one of the quality metrics, a notification to a user to perform an action corresponding to the particular device.

公开(公告)号：US11261075B2

公开(公告)日：2022-03-01

申请号：US16899097

申请日：2020-06-11

Applicant: DC Devices LLC

Inventor： Drew V. Crosier ,  Patrick Auell ,  Randon Kruse

IPC: B67D1/08 ,  G01F23/296 ,  G01F23/2962 ,  G06Q20/20 ,  G01F1/66 ,  G01F25/00

Abstract: A system and method for determining a liquid level in a vessel is described. Embodiments of the system can include a liquid level measuring assembly, a user device, and a vessel. The liquid level measuring assembly can include an ultrasonic sensor assembly, a control module, and a mount body configured to place the ultrasonic sensor assembly proximate a bottom of a vessel. Typically, the system can be implemented with a vessel having a substantially cylindrical shape and including a chime. The mount body can be adapted to removably couple to the inside of the chime of the vessel.

公开(公告)号：US20250060237A1

公开(公告)日：2025-02-20

申请号：US18761330

申请日：2024-07-02

Applicant: SHENZHEN SHOKZ CO., LTD.

Inventor： Yujia HUANG ,  Wenjun DENG ,  Wenbing ZHOU ,  Yongshuai YUAN ,  Fengyun LIAO ,  Xin QI

IPC: G01F23/2962 ,  H04R1/10 ,  H04R1/40

Abstract: An acoustic output device is provided. The acoustic output device includes a sound generation component, a support member, and a sensor. The sound generation component is configured to accommodate a sound generation unit that produces sound. The support member is configured to dispose the sound generation component near an ear without blocking an earhole. The sensor includes at least one ultrasonic transducer disposed inside the sound generation component. The sensor is configured to transmit a first ultrasonic signal to an outside of the sound generation component through the at least one ultrasonic transducer. The transducer is further configured to detect the second ultrasonic signal through the at least one ultrasonic transducer and determine a wearing state of the acoustic output device based on the detection. The second ultrasonic signal includes the first ultrasonic signal or a reflection signal of the first ultrasonic signal.