公开(公告)号：US5327778A

公开(公告)日：1994-07-12

申请号：US833017

申请日：1992-02-10

申请人： Noh A. Park

发明人： Noh A. Park

IPC分类号： G01N11/12

CPC分类号： G01N11/12

摘要： An apparatus and method are disclosed for accurately determining viscosity of Newtonian and non-Newtonian fluids using a controlled needle viscometer. The controlled needle viscometer includes a vertical sample insert tube filled with the liquid of which the viscosity is to be determined. Using a needle guide at the top of the sample insert tube, a body having a known density is made to fall through the liquid in the sample insert tube. Using the time that the controlled needle takes to fall between two known distance marks or transducers, the velocity of the needle falling through the liquid is determined. Thus, the viscosity can be calculated by using the velocity of a controlled needle. In the method, viscosity, shear rate and shear stress can be calculated according to a modified power law model.

摘要翻译： 公开了一种使用受控针式粘度计精确测定牛顿和非牛顿流体粘度的装置和方法。 受控针粘度计包括填充有要确定粘度的液体的垂直样品插入管。 在样品插入管的顶部使用针引导件，使具有已知密度的主体通过样品插入管中的液体落下。 使用受控针所需的时间落在两个已知的距离标记或换能器之间，确定穿过液体的针的速度。 因此，可以通过使用受控针的速度来计算粘度。 在该方法中，可以根据修正的幂律模型计算粘度，剪切速率和剪切应力。

公开(公告)号：US4852388A

公开(公告)日：1989-08-01

申请号：US214299

申请日：1988-07-01

申请人： Noh-Aeok Park ,  Thomas F. Irvine, Jr.

发明人： Noh-Aeok Park ,  Thomas F. Irvine, Jr.

IPC分类号： G01N9/34 ,  G01N11/12

CPC分类号： G01N9/34 ,  G01N11/12

摘要： The present invention relates to a method for determining the density of a liquid using a falling needle viscometer. The viscometer includes a vertical cylinder which is filled with the liquid the density of which is to be determined. Using a funnel at the top of the cylinder, a first needle having a known density is allowed to fall through the liquid in the cylinder. The time that the needle falls between two marks, or transducers, spaced on the cylinder a known distance is measured from which the velocity of the needle through the liquid is calculated. Then a second needle having the same dimensions as the first and a known density different from that of the first needle is allowed to fall through the liquid. The time that the second needle falls between the two marks on the cylinder or transducers is measured and the velocity of the second needle through the liquid is calculated. Using the densities of the two needles and the velocities of the needles through the Newtonian liquid the density of the liquid is calculated using disclosed equations. Using the densities three needles and the velocities of the needles through the non-Newtonian liquid, the density of the liquid is calculated using the disclosed equations.

摘要翻译： 本发明涉及一种使用落针式粘度计测定液体密度的方法。 粘度计包括垂直圆柱体，其中填充有要确定密度的液体。 使用圆筒顶部的漏斗，允许具有已知密度的第一针通过圆柱体中的液体落下。 测量针在两个标记之间的时间，或在圆筒上间隔已知距离的换能器，计算针穿过液体的速度。 然后允许具有与第一针相同尺寸的第二针和与第一针不同的已知密度通过液体落下。 测量第二针落在气缸或换能器上的两个标记之间的时间，并计算通过液体的第二针的速度。 使用两针的密度和针通过牛顿液体的速度，使用公开的等式计算液体的密度。 使用密度三针和针通过非牛顿液体的速度，使用所公开的等式计算液体的密度。

公开(公告)号：US4648262A

公开(公告)日：1987-03-10

申请号：US881474

申请日：1986-07-01

申请人： August K. Reis ,  Michael Fiala ,  Jochen R. Heimann

发明人： August K. Reis ,  Michael Fiala ,  Jochen R. Heimann

IPC分类号： G01N11/12

CPC分类号： G01N11/12

摘要： A viscosimeter of the kind wherein a capillary tube containing a fluid, the viscosity of which is to be measured, and a metal ball is supported so that the ball will gravitate from the top of the tube to the bottom and a magnet is used to periodically raise the ball in the capillary and release it. The viscosity is determined by the rate of descent of the ball in the capillary tube.

摘要翻译： 一种粘度计，其中包含要测量其粘度的金属球和含有金属球的毛细管，使得球将从管的顶部引向底部，并且使用磁体来周期性地 抬起毛细管中的球并将其释放。 粘度由毛细管中球的下降率决定。

公开(公告)号：US4466275A

公开(公告)日：1984-08-21

申请号：US326475

申请日：1981-12-02

申请人： Ernst Thone

发明人： Ernst Thone

IPC分类号： G01N11/12

CPC分类号： G01N11/12

摘要： An arrangment for measuring the viscosity of a fluid includes a heated, vertical container which receives a vessel filled with the fluid to undergo a viscosity determination. A pair of vertically spaced sensors are mounted in the peripheral wall of the container and are connected with an evaluating mechanism which includes a timer and a computer. The sensors are also connected with a temperature regulating mechanism which regulates the temperature of the fluid by controlling heating of the container. In operation, the fluid is heated on a predetermined temperature. A standard sphere is then permitted to fall through the fluid. When the sphere passes the uppermost sensor, the latter generates an impulse which activates the timer. Similarly, an impulse deactivating the timer is generated when the sphere passes the lowermost sensor. The time required for the sphere to travel between the sensors is fed into the computer which then calculates the viscosity of the fluid from a relationship between viscosity and time. The calculated viscosity may be displayed on a digital indicator. The arrangement is simple to operate and eliminates the need for manual observations to determine the time required for the standard sphere to travel a predetermined distance through the fluid.

摘要翻译： 用于测量流体粘度的布置包括加热的垂直容器，其接收填充有流体的容器以进行粘度测定。 一对垂直间隔的传感器安装在容器的周壁上，并与包括定时器和计算机的评估机构连接。 传感器还与通过控制容器的加热来调节流体温度的温度调节机构连接。 在操作中，流体在预定温度下被加热。 然后允许标准球体流过流体。 当球体通过最上面的传感器时，后者产生激活定时器的脉冲。 类似地，当球体通过最下面的传感器时，产生停止定时器的脉冲。 球体在传感器之间行进所需的时间被送入计算机，计算机从粘度和时间之间的关系计算流体的粘度。 计算的粘度可以显示在数字指示器上。 该装置操作简单，并且不需要手动观察来确定标准球体行进预定距离通过流体所需的时间。

公开(公告)号：US4027516A

公开(公告)日：1977-06-07

申请号：US667528

申请日：1976-03-16

申请人： Samuel Steven Ochodnicky ,  Frank Joseph Bianchi, Jr.

发明人： Samuel Steven Ochodnicky ,  Frank Joseph Bianchi, Jr.

IPC分类号： A61B10/00 ,  G01N11/12

CPC分类号： G01N11/12 ,  A61B2010/0022

摘要： A viscometer system for providing an indication of the viscosity of a fluid and operable on the falling slug principle and providing a means for providing an output indicative of viscosity as a function of elapsed time.

摘要翻译： 一种粘度计系统，用于提供流体的粘度的指示并且可以在下落的原料上运行，并且提供一种用于提供指示作为经过时间的函数的粘度的输出的装置。

公开(公告)号：US3677070A

公开(公告)日：1972-07-18

申请号：US3677070D

申请日：1970-12-28

申请人： NORCROSS CORP

发明人： NORCROSS AUSTIN S

IPC分类号： G01N11/12

CPC分类号： G01N11/12

摘要： A viscosity measuring apparatus of the type in which a movable body element is caused to move within the fluid to be measured, the time period required to move the body a predetermined distance representing an index of the viscosity. A movable driven body element, at least partially made of a magnetic material, has a second movable magnetic driver element magnetically coupled thereto but isolated from the fluid. The driver element is actuated by appropriate means, such as a pneumatic actuation system, which places such elements in a predetermined position at which point they are released and caused to move to a second predetermined position under a substantially constant force, the time required to move between such positions thereby representing a measure of the viscosity of the fluid in which the drive element moves.

摘要翻译： 一种粘度测量装置，其中使可移动体元件在被测量流体内移动，该移动体元件将所述主体移动到表示粘度指数的预定距离所需的时间。 至少部分地由磁性材料制成的可移动的被驱动体元件具有磁性耦合到其上但与流体隔离的第二可移动磁性驱动元件。 驱动元件由适当的装置（例如气动致动系统）致动，该气动致动系统将这些元件放置在预定位置，此时它们被释放并且在基本上恒定的力作用下移动到第二预定位置，移动所需的时间 在这种位置之间，由此表示驱动元件移动的流体的粘度的量度。

公开(公告)号：US3328704A

公开(公告)日：1967-06-27

申请号：US35090964

申请日：1964-03-10

申请人： WESTERN ELECTRIC CO

发明人： WANTLAND FREDERICK W

IPC分类号： G01N11/12 ,  H03K5/1532

CPC分类号： H03K5/1532 ,  G01N11/12

公开(公告)号：US3073151A

公开(公告)日：1963-01-15

申请号：US11777061

申请日：1961-06-15

申请人： GREAT LAKES CARBON CORP

发明人： FANN JAMES D

IPC分类号： G01N11/12

CPC分类号： G01N11/12

公开(公告)号：US2625034A

公开(公告)日：1953-01-13

申请号：US20328550

申请日：1950-12-29

申请人： ARMSTRONG CORK CO

发明人： PATTERSON JR WILLIAM

IPC分类号： G01N11/12

CPC分类号： G01N11/12

公开(公告)号：US2320219A

公开(公告)日：1943-05-25

申请号：US38487241

申请日：1941-03-24

申请人： STANDARD OIL DEV CO

发明人： BUCKLEY STUART E ,  HOCOTT CLAUDE R

IPC分类号： G01N11/12

CPC分类号： G01N11/12