Abstract: A measuring device includes a furnace, a draining vessel, a loader and a computing system for physical properties. The draining vessel with molten metal fluid is in the furnace. The loader accumulates the molten metal fluid from the draining vessel. The computing system includes a recording unit, transform unit, computing unit and processor. The recording unit records the vessel information. By the assumed physical parameters and the vessel information, the transform unit transforms a weight of the molten metal fluid in the loader into a first length criterion, and the computing unit simulates the flowing of the molten metal fluid to have a second length criterion. The processor minimizes the difference of the first and the second length criterion by changing the assumed physical parameters. The physical properties of the molten metal fluid are determined when the difference is minimized.

Abstract: A method and a device for the online determination of the viscosity of a polymer in pasty to liquid form undergoing processing, such as extrusion is disclosed. It is provided that for the online determination of the viscosity of the polymer, at least a portion of the polymer undergoing processing is diverted and conveyed to the measurement volume of a measuring module, a predetermined volume of the respective batch is expelled from the measurement volume through a measurement nozzle by subjecting the batch to a predetermined pressure, the time required for expelling the predetermined volume of the batch is measured, the measured values are used for calculating the viscosity of the polymer, and prior to the filling of the measurement volume with the polymer to be measured, the measurement volume is flushed at least once with a quantity of the polymer being processed.

Abstract: An additive management system is disclosed. The system includes an additive selection system, which selects an additive for dispensing into a working fluid. The system also includes an additive dispensing system having a fluid sensing chamber with sensors. The system also includes an additive delivery system, which delivers the selected additive to the additive dispensing system, and a processor which causes the fluid sensing chamber to receive a sample of the working fluid, receives measurement signals from the one or more fluid parameter sensors corresponding with the values of fluid parameters of the working fluid, and determines values for fluid parameters of the working fluid based on the measurement signals. The processor also causes the additive delivery system to deliver the selected additive to the additive dispensing system and causes the additive dispensing system to dispense the selected additive into the working fluid through the fluid sensing chamber.

Abstract: A method for measuring a the viscosity of a fluid in a microchannel including steps of introducing a fluid containing particles to the microchannel, causing the fluid to flow through the microchannel by a applying a pressure drop, measuring a transit time of one or more particles through the microchannel, determining the flow rate from the particle transit times and the known volume of the microchannel, and determining the viscosity of the fluid from the flow rate and pressure drop.

Abstract: A method for measuring the viscosity of any liquid gaseous or supercritical, optionally multiphase fluid, under extended conditions of pressure, temperature and chemical composition, the method is based on the application of a flow law of the fluid through a permeable medium, the permeability of which is known. A viscosimeter for carrying out this measurement method is also described.

Abstract: Methods and systems for characterizing drilling fluids laden with LCM (Lost Circulation Material) and other solid materials are disclosed. A test cell for analyzing a fluid is provided with a first conical inner portion and an axial positioning device positioned along an axis of the test cell. A first conical plug is coupled to the axial positioning device and is movable in and out of the first conical inner portion along the axis of the test cell. A fluid inlet is positioned at a first location on the test cell and a fluid outlet at a second location.

Abstract: A condition of an industrial process is diagnosed based upon process variable information related to a value of a measured process variable. Histogram information is calculated based upon the determined process variable information and time information related to a duration of time the measured process variable has the value. Condition of the industrial process is diagnosed based upon the calculated histogram information.

Abstract: Method and apparatus for estimating an apparent viscosity of a non-Newtonian fluid. The results may be used for selecting equipment for pumping systems.

Abstract: A Marsh funnel is equipped with a valve at the funnel outlet. The valve may be of the quick opening type selected from stem valves (internal of the funnel), ball valves, plug valves, flapper valves, butterfly valves, slide valves and the like.

Abstract: An electronic fluid dispensing apparatus and related method. At least some of the illustrative embodiments are apparatuses comprising a funnel comprising a receiving mouth open to atmosphere, a sidewall that defines a frustum, and an apex that comprises an end portion (the frustum tapers from the receiving mouth towards the apex), a tube fluidly coupled to the end portion (the tube configured to receive a fluid from the funnel, the combined volume of the funnel and the tube being no greater than 64 fluid ounces), and a device coupled to the tube (the device configured to determine a parameter of a fluid that flows through the funnel and tube).

Abstract: A fluid ejecting apparatus includes an ejection head having an ejection face formed with an ejection nozzle that ejects fluid, a detection device having a detector that is arranged to face the ejection face with a predetermined gap provided therebetween and to which the fluid ejected from the ejection nozzle is supplied, the detection device outputting a detection signal in response to the fluid ejected from the ejection nozzle, a processing unit that obtains information on the viscosity of the fluid on the basis of the detection signal, a measurement device that measures an elapsed time from a reference time and outputting the measured value, a maintenance device capable of performing maintenance of the ejection head, and a control device that controls the maintenance device on the basis of the measured value output from the measurement device. The measurement device changes the measured value to be output on the basis of the information obtained by the processing unit.

Abstract: A microfabricated, a nanoliter capillary viscometer includes a first channel that is defined by a first channel-defining surface in a first substrate and a second channel defining surface in a second substrate. The progress of liquid through this first channel is monitored and used to determine viscosity. Viscosities in the range of 1 cP to 1000 cP are easily measured. Self-calibrating versions of the viscometer are also disclosed.

Abstract: An apparatus uses electrical conductance to determine the start and stop times for viscosity measurements using efflux cups. An efflux cup and two probes are immersed and removed from the fluid. An electric current is applied between each probe and the efflux cup. A timer measures the elapsed time between a decrease in the electric current measured between a first probe and the efflux cup and a decrease in the electric current measured between a second probe and the efflux cup.

Abstract: Microfluidic devices, systems, and methods measure viscosity, flow times, and/or other flow characteristics within the channels, and the measured flow characteristics can be used to generate a desired flow. Multi-reservoir pressure modulator and pressure controller systems, electrokinetic systems and/or other fluid transport mechanisms can generate the flow, controllably mix fluids, and the like.

Abstract: A test apparatus and method for predicting the minimum runnable flow of a curtain coating fluid by forcing the coating fluid out of a small round tube opening with less flow rate than is required for momentum to exceed the contracting forces of surface tension. The minimum flow rate is a measure of the combined effects of the surface tension, viscosity, elasticity, and dilitant behavior of the coating fluid which influence the stretch and acceleration of the fluid, that in turn, characterize the runnability of the fluid for a full scale curtain coating process. The velocity of the coating as it lands can also be determined from the flow rate and acceleration to predict whether the coating fluid will run or not before it is applied to a web or substrate.

Abstract: Microfluidic devices, systems, and methods measure viscosity, flow times, and/or other flow characteristics within the channels, and the measured flow characteristics can be used to generate a desired flow. Multi-reservoir pressure modulator and pressure controller systems, electrokinetic systems and/or other fluid transport mechanisms can generate the flow, controllably mix fluids, and the like.

Abstract: Apparatus and methods for evaluating the rheological properties of Newtonian and non-Newtonian liquids and melts employs the principle of capillary breakup following rapid stretching of the fluid between two plates. The apparatus includes opposed surfaces defining a sample site disposed therebetween. A liquid sample undergoes an extensional deformation between the opposed surfaces which separate using a user-defined motion profile. The time profile of the diameter of the liquid filament is monitored and recorded as a function of time. Preferred embodiments of the present invention include data analysis of the diameter of the filament as a function of time which provides information regarding rheological parameters including, but not limited to, extensional viscosity versus strain.

Abstract: Microfluidic devices, systems, and methods measure viscosity, flow times, and/or other flow characteristics within the channels, and the measured flow characteristics can be used to generate a desired flow. Multi-reservoir pressure modulator and pressure controller systems, electrokinetic systems and/or other fluid transport mechanisms can generate the flow, controllably mix fluids, and the like.

Abstract: The invention is a method for dimensioning or adapting an elastic structure immersed in a fluid in motion, the structure having a length Lt. The method comprises: a) the natural excitation modes of the structure and their number N are defined; b) for at least a given time t for an excitation mode of the structure, the various holding zones LR over length Lt and, for each holding zone, the excitation force FR corresponding to the excited natural mode r are determined; c) step b) is carried out for all the natural modes defined in step a); and d) the vibration amplitude response A of the elastic structure over part of length Lt is determined.

Abstract: A drilling mud monitoring system includes a single measurement chamber which is filled with a predetermined quantity of drilling mud. The chamber is weighed to provide a value representative of the density of the drilling mud. The time needed for the chamber to drain is measured to provide a value representative of viscosity. The system proceeds through a measurement cycle in which the chamber is filled, weighed, timed, and washed. At the end of the wash step, the weight of the chamber is compared with an empty weight and if the chamber weighs too much, the conclusion is that drilling mud adheres to the chamber so it is washed again. An alarm is sounded if the mud weight is too low and/or too high or in the case of a machine malfunction.

Abstract: An apparatus and method for determining the viscosity of the circulating blood of a living being over plural shear rates caused by a decreasing pressure differential by monitoring the changing weight of the blood, or the changing level of a column of blood over time. The apparatus and method utilize a riser, a capillary tube, a collector and a mass detector, such as a precision balance or a load cell, for monitoring the changing weight of a sample of fluid that flows through these components under the influence of the decreasing pressure differential; alternatively, the apparatus and method use a column level detector to monitor the changing level of the column of blood over time.

Abstract: An apparatus and method for determining the viscosity of a fluid over plural shear rates caused by a decreasing pressure differential by monitoring the movement of the fluid through a riser tube and a capillary tube. The movement can be monitored by detecting the changing weight of the fluid, using a precision balance or load cell, as it moves through the riser tube and capillary tube into a fluid collector; or, alternatively, the movement can be monitored by detecting the changing level of a fluid column in the riser tube using a column level detector. A processor then uses the changing weight or height data, along with the dimensions of the capillary tube and a dimension of the riser tube, to determine the viscosity of the fluid. In addition, apparatus and methods for determining fluid viscosity online and fluid mixture homogeneity online are also described.