公开(公告)号：US20230204467A1

公开(公告)日：2023-06-29

申请号：US18087901

申请日：2022-12-23

申请人： Anton Paar GmbH

发明人： Dieter Stelzmann ,  Harald Schmidegg

IPC分类号： G01N1/14 ,  G01N9/34 ,  B08B3/04

CPC分类号： G01N1/14 ,  B08B3/04 ,  G01N9/34 ,  G01N2001/002

摘要： A method for fills and/or cleans the measurement cell of a measuring instrument, namely a viscometer and/or density measuring instrument, in particular of a rotational viscometer. A sample is introduced via a sample line into the measurement cell by a pump, and wherein a dynamic viscosity and/or density of the sample is determined in the measurement cell. A funnel-shaped, reversibly openable receiving container, in particular a filling funnel, for the sample, is arranged in the sample line, between the pump and the measurement cell. The receiving container is opened and the sample is introduced into the receiving container. The receiving container is connected to the pump via a pressure line in such a way that, when pressure is applied into the receiving container, a proportion of the sample is dispensed out of the receiving container and introduced into the measurement cell.

公开(公告)号：US07530268B2

公开(公告)日：2009-05-12

申请号：US10554199

申请日：2004-04-21

申请人： Sergej Lopatin ,  Helmut Pfeiffer

发明人： Sergej Lopatin ,  Helmut Pfeiffer

IPC分类号： G01N29/02 ,  G01F23/28 ,  G01N9/34

CPC分类号： G01F23/2967 ,  G01N2291/02836

摘要： An apparatus for determining and/or monitoring at least one physical or chemical, process variable of a medium and includes at least one mechanically oscillatable unit and at least one driving/receiving unit. The mechanically oscillatable unit includes a tube and an internal oscillator. The tube is connected to a securement unit with an end turned away from the process and the end of the tube turned toward the process is embodied as a free end. The tube surrounds the internal oscillator and the internal oscillator is secured to the end of the tube turned toward the process with an end turned toward the process. The driving/receiving unit excites the mechanically oscillatable unit to oscillate, respectively it receives the oscillations of the mechanically oscillatable unit. The internal oscillator has at least one groove/neck, which determines at least the oscillation frequency of the mechanically oscillatable unit.

摘要翻译： 一种用于确定和/或监测介质的至少一个物理或化学过程变量并且包括至少一个机械振荡单元和至少一个驱动/接收单元的装置。 机械振荡单元包括管和内部振荡器。 管连接到固定单元，其端部远离过程，并且朝向该过程的管的端部被实施为自由端。 管围绕内部振荡器，并且内部振荡器固定到管的端部，朝向过程转动，端部转向过程。 驱动/接收单元激发机械振荡单元振荡，分别接收机械振荡单元的振荡。 内部振荡器具有至少一个凹槽/颈部，其至少确定机械振荡单元的振荡频率。

公开(公告)号：US06151957A

公开(公告)日：2000-11-28

申请号：US194169

申请日：1999-01-20

申请人： Knut Enarson

发明人： Knut Enarson

IPC分类号： G01L1/14 ,  G01N9/34 ,  G01N11/14 ,  G01N15/06 ,  G01N11/02 ,  G01N11/16

CPC分类号： G01N9/34 ,  G01N11/14

摘要： A device for measuring a parameter such as the mass concentration or the viscosity of a fluid medium such as a suspension or a liquid, including a rotor for rotation in the medium, a drive motor, a drive transmission with a drive shaft for the rotor, and a sensor device for sensing the torque which is transmitted to the rotor and which represents the parameter. The device is distinguished by that the sensor device includes an excitable frequency gauge which is deformed by the torque, and the prevailing natural frequency of which his dependent on the deformation and directly detectable by a stationary detector, which is placed outside the transmission.

摘要翻译： PCT No.PCT / SE97 / 00745 Sec。 371日期1999年1月20日 102（e）1999年1月20日PCT PCT 1997年5月5日PCT公布。 公开号WO97 / 44647 日期1997年11月27日一种用于测量诸如悬浮液或液体的流体介质的质量浓度或粘度等参数的装置，包括用于在介质中旋转的转子，驱动马达，带驱动的驱动传动 用于转子的轴，以及用于感测传递到转子并且代表参数的转矩的传感器装置。 该装置的特征在于，传感器装置包括由扭矩变形的可激发频率计，以及其依赖于变形的主要固有频率，并且其被放置在变速器外部的静止检测器直接检测。

公开(公告)号：US4263804A

公开(公告)日：1981-04-28

申请号：US73622

申请日：1979-09-10

申请人： Robert A. Seemann

发明人： Robert A. Seemann

IPC分类号： G01N9/34 ,  G01N9/00 ,  G01C5/00

CPC分类号： G01N9/34

摘要： The invention resides in apparatus for directly measuring density altitude in an aircraft and includes a housing in communication with ambient conditions of air temperature, pressure and humidity outside the aircraft. A rotor having dynamically balanced blade elements is positioned rotatably within the housing. An electric motor is connected so as to drive the rotor within the housing against the resistance therein of the air under the ambient conditions of temperature, pressure and humidity. An operational characteristic of the motor, such as the current which it draws, is continuously sampled, amplified and changed in shape and applied as the input to a display device which is calibrated to display the input in terms of density altitude.

摘要翻译： 本发明在于用于直接测量飞行器中的密度高度的装置，并且包括与飞机外部的空气温度，压力和湿度的环境条件相通的壳体。 具有动态平衡的叶片元件的转子可旋转地定位在壳体内。 连接电动机以在温度，压力和湿度的环境条件下驱动壳体内的转子抵抗空气中的电阻。 电动机的操作特性，例如其所绘制的电流，被连续采样，放大和变化，并作为输入施加到被校准以根据密度高度显示输入的显示装置。

公开(公告)号：US4065957A

公开(公告)日：1978-01-03

申请号：US742142

申请日：1976-11-15

申请人： John L. Beilman

发明人： John L. Beilman

IPC分类号： G01F1/46 ,  G01F1/50 ,  G01N9/34 ,  G01P5/14

CPC分类号： G01P5/14 ,  G01F1/46 ,  G01F1/50 ,  G01N9/34

摘要： Fluid density is measured in a fluid speed indicating apparatus by using a pair of rotor arms having a pair of asymetrically located venturis or equivalent venturis. A steady state pressure difference will be produced between the two pressure locations and will be a function of the rotational velocity and fluid density. Since the rotational velocity is a known constant, the fluid density can be derived directly from the steady state pressure difference.

摘要翻译： 流体密度通过使用具有一对不对称位置的意大利文或同等风口的一对转子臂在流体速度指示装置中测量。 在两个压力位置之间将产生稳定的压力差，并且将是旋转速度和流体密度的函数。 由于旋转速度是已知常数，所以可以直接从稳态压力差导出流体密度。

公开(公告)号：US2092640A

公开(公告)日：1937-09-07

申请号：US7827736

申请日：1936-05-06

申请人： GEN ELECTRIC

发明人： HERBERT DALLMANN

IPC分类号： G01N9/34

CPC分类号： G01N9/34

公开(公告)号：US1664752A

公开(公告)日：1928-04-03

申请号：US72397624

申请日：1924-07-03

申请人： GEORG KONIG

发明人： GEORG KONIG

IPC分类号： G01N9/34

CPC分类号： G01N9/34

公开(公告)号：US11054355B2

公开(公告)日：2021-07-06

申请号：US16023517

申请日：2018-06-29

申请人： CertainTeed LLC

发明人： Glenn Allan Duchene ,  Vivek Singh ,  Mickael Boinet ,  Remi J. Goulet

IPC分类号： G01N9/34

摘要： The present disclosure relates to devices and methods for determining the density of insulation (e.g., in a cavity). For example, one aspect of the disclosure is a device that includes a probe, an actuator, a sensor, and a control system. The control system is configured to cause the actuator to oscillate the probe. The sensor is configured to generate a signal that represents the density of insulation. Another aspect of the disclosure relates to a method for determining the density of insulation. The method includes placing a probe into contact with the insulation, causing, via an actuator, the probe to oscillate while in contact with the insulation, and generating, via a sensor, a signal that represents the density of insulation.

公开(公告)号：US20200088619A1

公开(公告)日：2020-03-19

申请号：US16470884

申请日：2016-12-19

申请人： RHEONICS GMBH

发明人： Joseph H. Goodbread ,  Sunil Kumar ,  Klaus Haeusler ,  Bernhard Zybach

IPC分类号： G01N9/34 ,  G01N11/16

摘要： A resonant sensor 1908 is used to determine fluid properties, the resonant sensor 1908 comprising a resonator 108 defining a lengthwise axis and having a central vibrational node (140), and a pair of opposed lengthwise end-portions (125); a support structure including a frame (115) and a set of flexible supports (110) extending from the frame to the central vibrational node and thereby supporting the resonator at the lengthwise midpoint; a driving and sensing assembly, adapted to drive the resonator to resonant motion and to sense resultant motion of the resonator and producing a motion sensed signal, responsive thereto; and a control and signal processing network adapted to control the driving and sensing assembly to drive the lengthwise end-portions in rotation about the lengthwise axis, in opposed rotational directions, and responsive to the motion sensed signal to determine at least one fluid property of a fluid under test in response to the motion sensed signal.

公开(公告)号：US10168264B2

公开(公告)日：2019-01-01

申请号：US14781259

申请日：2014-04-18

申请人： Micro Motion, Inc.

发明人： Craig B McAnally ,  Andrew S. Kravitz

IPC分类号： G01N9/00 ,  G01F1/84 ,  G01N9/34 ,  G01N11/16 ,  G01F23/296

摘要： A method (600) of generating a drive signal for a vibratory sensor (5) is provided. The method (600) includes vibrating a vibratory element (104, 510) configured to provide a vibration signal, receiving the vibration signal from the vibratory element (104, 510) with a receiver circuit (134), generating a drive signal that vibrates the vibratory element (104, 510) with a driver circuit (138) coupled to the receiver circuit (134) and the vibratory element (104, 510), and comparing a phase of the generated drive signal with a phase of the vibration signal.