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21. 发明授权

US3983744A Method and apparatus for measuring the density of a dirty fluid 失效
标题翻译：用于测量脏液体密度的方法和装置
公开(公告)号：US3983744A
公开(公告)日：1976-10-05
申请号：US601478
申请日：1975-08-04
申请人： Joram Agar
发明人： Joram Agar
IPC分类号： G01N9/00 , G01N9/34
CPC分类号： G01N9/34 , G01N9/002
摘要： Apparatus for measuring the density of a dirty fluid, said apparatus comprising a hollow body adapted to have said dirty fluid passing through its interior; a rigid support member within which the hollow body is mounted and to which it is connected to provide a space therebetween adapted to contain a clean fluid; drive means for exciting said hollow body to vibrate at a resonant frequency; detecting means for detecting a density signal representative of the frequency of such vibrations, the frequency of said density signal in operation being dependent upon the density of said dirty fluid; and pressure transmitting means for transmitting the pressure of dirty fluid passing through the interior of the hollow body to the clean fluid in said space, so that the exterior of the hollow body is always subjected to substantially the same pressure as the interior thereof.
摘要翻译：用于测量脏流体密度的装置，所述装置包括适于使所述脏流体通过其内部的空心体; 刚性支撑构件，中空本体安装在该刚性支撑构件中，并且连接所述空心体以在其间提供适于容纳清洁流体的空间; 驱动装置，用于激励所述中空体以共振频率振动; 检测装置，用于检测代表这种振动的频率的密度信号，所述密度信号的运行频率取决于所述脏流体的密度; 以及用于将通过中空体内部的脏流体的压力传递到所述空间中的清洁流体的压力传递装置，使得中空体的外部总是经受与其内部基本相同的压力。

22. 发明授权

US2036251A Method for determining the oxygen content of gases 失效
标题翻译：确定气体氧含量的方法
公开(公告)号：US2036251A
公开(公告)日：1936-04-07
申请号：US69875333
申请日：1933-11-20
申请人： BRASSERT & CO
发明人： BOYNTON ARTHUR J
IPC分类号： G01N9/34
CPC分类号： G01N9/34 , Y10T436/207497

23. 发明公开

US20230204467A1 METHOD FOR FILLING AND/OR CLEANING THE MEASUREMENT CELL OF A MEASURING INSTRUMENT AND MEASURING INSTRUMENT 审中-公开
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.

24. 发明申请

US20140331766A1 Method For Measuring A Fluid Density Or A Fluid Viscosity 有权
标题翻译：测量流体密度或流体粘度的方法
公开(公告)号：US20140331766A1
公开(公告)日：2014-11-13
申请号：US14444561
申请日：2014-07-28
申请人： Axel Kramer , Hubert Brandle , Thomas Alfred Paul
发明人： Axel Kramer , Hubert Brandle , Thomas Alfred Paul
IPC分类号： G01N29/036 , G01N9/00 , G01N11/16
CPC分类号： G01N29/036 , G01N9/002 , G01N9/34 , G01N11/16 , G01N29/022 , G01N29/4472 , G01N2009/006 , G01N2291/02818 , G01N2291/0427
摘要： A method and device for estimating a density value ρm indicative of a true density ρ or for estimating a viscosity value ηm indicative of a true viscosity η of a fluid is disclosed. For this, a first resonance frequency fR of a first mechanical oscillator in a reference volume and a second resonance frequency fF of a second mechanical oscillator in contact with the fluid are measured. The estimated value ρm or ηm is then derived using these resonance frequencies fR and fF. During this derivation, at least one fluid-temperature- or fluid-pressure-dependent parameter of the fluid is used. Additionally or alternatively, the first (i.e. reference) mechanical oscillator is arranged in contact with a reference fluid. Thus, fundamental errors in the derivation of the estimated value ρm or ηm are reduced and the estimated value becomes more reliable.
摘要翻译：用于估计表示真实密度的密度值的方法和装置或用于估计表示真实粘度和粘度的粘度值和eegr; 的流体。为此，测量参考体积中的第一机械振荡器的第一共振频率fR和与流体接触的第二机械振荡器的第二共振频率fF。然后使用这些谐振频率fR和fF导出估计值＆rgrm或eegr m。在此推导过程中，使用流体的至少一个流体温度或流体压力参数。附加地或替代地，第一（即参考）机械振荡器布置成与参考流体接触。因此，推导估计值＆rgrm或eegr m的基本误差减小，估计值变得更可靠。

25. 发明申请

US20040074303A1 Method and apparatus for characterizing materials by using a mechanical resonator 失效
公开(公告)号：US20040074303A1
公开(公告)日：2004-04-22
申请号：US10686444
申请日：2003-10-15
申请人： Symyx Technologies, Inc
发明人： Leonid Matsiev , James Bennett , Eric McFarland
IPC分类号： G01H013/00 , G01H003/04
CPC分类号： G01H13/00 , B01J2219/00704 , G01N9/002 , G01N9/34 , G01N11/16 , G01N29/022 , G01N29/036 , G01N29/30 , G01N29/348 , G01N29/42 , G01N29/4418 , G01N29/4427 , G01N29/4436 , G01N2009/006 , G01N2291/014 , G01N2291/0224 , G01N2291/0255 , G01N2291/0256 , G01N2291/02818 , G01N2291/0422 , G01N2291/0423 , G01N2291/0427 , G10K11/02
摘要： A method and apparatus for measuring properties of a liquid composition includes a mechanical resonator, such as a cantilever, connected to a measurement circuit. The mechanical resonator can be covered with a coating to impart additional special detection propertied to the resonator, and multiple resonators can be attached together as a single sensor to obtain multiple frequency responses. The invention is particularly suitable for combinatorial chemistry applications, which require rapid analysis of chemical properties for screening.

26. 发明授权

US06151957A Measuring device comprising an excitable frequency gauge 失效
标题翻译：测量装置包括可激发频率计
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。

27. 发明授权

US4263804A Apparatus for directly measuring density altitude in an aircraft 失效
标题翻译：直接测量飞机密度高度的装置
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。

28. 发明授权

US4065957A Fluid speed indicating apparatus and densitometer 失效
标题翻译：流体速度指示装置和密度计
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。

29. 发明授权

US2092640A Device for measuring the densities or pressures of fluids 失效
标题翻译：用于测量流体密度或压力的装置
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

30. 发明授权

US1664752A Method of measuring the density of gas 失效
标题翻译：测量气体密度的方法
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

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