公开(公告)号：US10852277B2

公开(公告)日：2020-12-01

申请号：US15302836

申请日：2015-04-09

申请人： Etegent Technologies, Ltd.

发明人： Oleg Lobkis ,  Richard A. Roth ,  Christopher G. Larsen ,  Stuart J. Shelley

IPC分类号： G01N29/32 ,  G01N29/24 ,  G01L1/10 ,  G01N29/07 ,  G01N29/12 ,  G01L11/06 ,  G01H11/00 ,  F01D17/08 ,  F01D17/02 ,  G01P15/097

摘要： An environmental condition may be measured with a sensor (10) including a wire (20) having an ultrasonic signal transmission characteristic that varies in response to the environmental condition by sensing ultrasonic energy propagated through the wire using multiple types of propagation, and separating an effect of temperature on the wire from an effect of strain on the wire using the sensed ultrasonic energy propagated through the wire using the multiple types of propagation. A positive feedback loop may be used to excite the wire such that strain in the wire is based upon a sensed resonant frequency, while a square wave with a controlled duty cycle may be used to excite the wire at multiple excitation frequencies. A phase matched cone (200, 210) may be used to couple ultrasonic energy between a waveguide wire (202, 212) and a transducer (204, 214).

公开(公告)号：US20200149979A1

公开(公告)日：2020-05-14

申请号：US16604431

申请日：2018-04-10

申请人： Etegent Technologies LTD.

发明人： Richard A. Roth, II ,  Stuart J. Shelley ,  Kevin Sigmund ,  Oleg Lobkis

IPC分类号： G01K11/24 ,  G01L11/06 ,  G01N29/07 ,  G01L1/10 ,  G10K11/24 ,  G01N29/44 ,  H01P3/10

摘要： A sensor with a mechanical waveguide maybe characterized using test ultrasonic signals to generate a baseline signature, and the baseline signature may later be used to detect faults in the sensor.

公开(公告)号：US20190320997A1

公开(公告)日：2019-10-24

申请号：US16389202

申请日：2019-04-19

申请人： Microtech Medical Technologies Ltd.

发明人： Amir KOHEN ,  Yuval BECKER ,  Eric S. TAMMAM

IPC分类号： A61B8/04 ,  G01L11/06 ,  G01H13/00 ,  A61B8/12

摘要： A method and system of the invention generally relate to measuring ambient pressure in systems comprising incompressible fluids. Particularly, the method and system relate to monitoring pressure within body lumens. The ambient pressure may be measured by transmitting a frequency comb having non-uniform spacing between transmitted frequencies at the passive sensor and measuring the frequency response of the passive sensor. In one embodiment, a higher-order harmonic of the sensor is excited and measured to determine the ambient pressure. In another embodiment, the frequency response of frequencies in-between the transmitted frequencies are measured to determine the ambient pressure.

公开(公告)号：US20190154531A1

公开(公告)日：2019-05-23

申请号：US16160309

申请日：2018-10-15

申请人： DIEHL METERING GMBH

发明人： PETER PLOSS ,  MICHAEL MAYLE ,  ANDREAS BENKERT

IPC分类号： G01L11/06

摘要： A measurement device for ascertaining a pressure in a measurement volume which receives a fluid or through which fluid flows. The measurement volume is bounded at least sectionally by a side wall and a vibration transducer is arranged on the side wall. The vibration transducer is actuable by a control device of the measurement device to excite a wave that is guided through the side wall. The guided wave is able to be guided through the side wall along a propagation path back to the vibration transducer or to at least one further vibration transducer and it is captured there by the control device in order to ascertain measurement data. The pressure in the measurement volume is then ascertained by the control device in dependence on the measurement data.

公开(公告)号：US06962071B2

公开(公告)日：2005-11-08

申请号：US10474134

申请日：2002-04-05

申请人： Peter J. A. Frinking ,  Marcel Arditi

发明人： Peter J. A. Frinking ,  Marcel Arditi

IPC分类号： A61B5/022 ,  A61B8/00 ,  A61B8/04 ,  A61K49/00 ,  G01L11/06 ,  G01N7/14 ,  G01N15/00 ,  G01N15/02 ,  G01N29/036 ,  G01V1/40 ,  G01N7/00

CPC分类号： G01N29/036 ,  A61B8/481 ,  G01L11/06 ,  G01N15/02 ,  G01N2015/0011 ,  G01N2291/02433 ,  G01N2291/02854 ,  G01N2291/02872

摘要： The present invention relates to remotely determining local physical parameters in a fluid-filled cavity (e.g. heart cavities, blood vessels, industrial container) by means of ultrasound waves and encapsulated or stabilised gas bubbles. A measuring method, a method of diagnostic ultrasound of the same and an apparatus for remotely determining ambient physical local parameters of a fluid-filled cavity are disclosed.

摘要翻译： 本发明涉及通过超声波和封装或稳定化的气泡来远程确定流体填充的空腔（例如心脏腔，血管，工业容器）中的局部物理参数。 公开了一种测量方法，其诊断超声波的方法和用于远程确定流体填充空腔的周围物理局部参数的装置。

公开(公告)号：US06931930B2

公开(公告)日：2005-08-23

申请号：US10273179

申请日：2002-10-18

申请人： Siegfried Reck

发明人： Siegfried Reck

IPC分类号： B60G17/00 ,  B60G17/019 ,  F16F9/05 ,  G01L11/06 ,  G01S7/521 ,  G01S15/02 ,  G01S15/88 ,  G01N29/18 ,  G01N29/20

CPC分类号： B60G17/01933 ,  B60G2204/111 ,  B60G2400/252 ,  B60G2401/176 ,  F16F9/05 ,  F16F9/052 ,  F16F2230/08 ,  G01L11/06 ,  G01N2291/02872 ,  G01S7/521 ,  G01S15/025 ,  G01S15/88 ,  G01S2007/52014

摘要： An ultrasonic pulse/echo measurement arrangement includes an ultrasonic transducer (12), which is mounted spatially fixed on an air spring cover plate (4). The arrangement further includes a fixedly mounted reference reflector (14), a target reflector (16) mounted on a roll-off piston (8) or on the bumper (18) as well as a transmitter/receiver evaluation electronic circuit (30). The running time as well as the amplitude of the reference signal is evaluated to precisely determine the pressure present in the interior space of the air spring. The ultrasonic transducer (12) has a λ/4-adaptation layer (22), whose impedance does not correspond to the geometric mean of the impedances of the ultrasonic transducer (12) and the ambient air of the interior space (20) of the air spring, but rather, is a mismatch. The evaluation electronic circuit (30) can be calibrated at ambient pressure for the determination of the inner pressure of the air spring. Preferably, the pressure measuring method according to the invention is also used to determine the running-time dependent spring height in an air spring (2) of a motor vehicle.

摘要翻译： 超声波脉冲/回波测量装置包括空间上固定在空气弹簧盖板（4）上的超声波换能器（12）。 该装置还包括固定安装的参考反射器（14），安装在滚降活塞（8）或保险杠（18）上的目标反射器（16）以及发射器/接收器评估电子电路（30）。 评估运行时间以及参考信号的振幅以精确地确定存在于空气弹簧的内部空间中的压力。 超声换能器（12）具有λ/ 4适配层（22），其阻抗不对应于超声波换能器（12）的阻抗的几何平均值和内部空间（20）的环境空气 空气弹簧，而是一个不匹配。 评估电子电路（30）可以在环境压力下进行校准，以确定空气弹簧的内部压力。 优选地，根据本发明的压力测量方法还用于确定机动车辆的空气弹簧（2）中的运行时间相关弹簧高度。

公开(公告)号：US5917180A

公开(公告)日：1999-06-29

申请号：US895268

申请日：1997-07-16

申请人： Ernest M. Reimer ,  Lee Danisch

发明人： Ernest M. Reimer ,  Lee Danisch

IPC分类号： G01L1/24 ,  G01L5/00 ,  G01L11/02 ,  G01L11/06 ,  H01J5/16

CPC分类号： G01L1/24

摘要： A pressure sensor relies on detecting multiply scattered light within an optical cavity. Changes in the volume of the cavity are sensed by the change in sampled light intensity. Pressure sensitive mats with a high density of sensor are assembled using optical fiber technology.

摘要翻译： 压力传感器依赖于在光腔内检测多个散射光。 通过采样光强度的变化来感测腔的体积变化。 使用光纤技术组装高密度传感器的压敏垫。

公开(公告)号：US11709457B2

公开(公告)日：2023-07-25

申请号：US17317355

申请日：2021-05-11

申请人： CANON KABUSHIKI KAISHA

发明人： Toshiyuki Ichino ,  Naoki Nishimura ,  Hiromitsu Kumada ,  Masafumi Monde

IPC分类号： G03G21/20 ,  G01K3/08 ,  G01K3/00 ,  G01B17/02 ,  G01L11/06

CPC分类号： G03G21/20 ,  G01B17/02 ,  G01K3/005 ,  G01K3/08 ,  G01L11/06

摘要： An image forming apparatus comprises an ultrasonic sensor and a processor is configured to control the image forming apparatus based on an output signal of the ultrasonic sensor. The processor estimates a barometric pressure based on the output signal of the ultrasonic sensor and determines an image forming condition based on the estimated barometric pressure. The ultrasonic sensor is utilized for controlling the image forming apparatus and for estimating the barometric pressure.

公开(公告)号：US20210372971A1

公开(公告)日：2021-12-02

申请号：US17107646

申请日：2020-11-30

申请人： Etegent Technologies, Ltd.

发明人： Oleg Lobkis ,  Richard A. Roth ,  Christopher G. Larsen ,  Stuart J. Shelley

IPC分类号： G01N29/32 ,  G01L11/06 ,  G01N29/24 ,  G01H11/00 ,  G01L1/10 ,  G01N29/07 ,  G01N29/12 ,  F01D17/08

摘要： An environmental condition may be measured with a sensor (10) including a wire (20) having an ultrasonic signal transmission characteristic that varies in response to the environmental condition by sensing ultrasonic energy propagated through the wire using multiple types of propagation, and separating an effect of temperature on the wire from an effect of strain on the wire using the sensed ultrasonic energy propagated through the wire using the multiple types of propagation. A positive feedback loop may be used to excite the wire such that strain in the wire is based upon a sensed resonant frequency, while a square wave with a controlled duty cycle may be used to excite the wire at multiple excitation frequencies. A phase matched cone (200, 210) may be used to couple ultrasonic energy between a waveguide wire (202, 212) and a transducer (204, 214).

公开(公告)号：US20210247256A1

公开(公告)日：2021-08-12

申请号：US17256524

申请日：2019-09-19

申请人： Zhejiang University

发明人： Peng ZHAO ,  Jianfeng Zhang ,  Yao ZHAO ,  Fu Gu ,  Junye Huang ,  Neng Xia ,  Jianzhong Fu

IPC分类号： G01L11/06 ,  B29C45/77 ,  B29C45/00

摘要： The present invention discloses a ultrasonic method for indirectly measuring a pressure of a cavity of an injection molding machine, comprising: emitting ultrasonic wave to each pull rod along an axial direction of the pull rod respectively at the same time, detecting an ultrasonic wave echo time difference of each pull rod, and obtaining an average pressure inside a cavity of the injection molding machine. By the detection method and detection device of the present invention, the pressure inside the cavity may be detected in a certain state, the pressure inside the cavity in the injection molding process may be detected in real time, and the detection process is simple and the accuracy is high.