69results about How to "Accurate viscosity" patented technology

A system that facilitates measurement, analysis, and automatic maintenance of fluid comprises a fluid, and a casing that includes a plurality of apertures is immersed in the fluid. The apertures are opened to permit the fluid to enter the casing and closed to confine a sample of the fluid within the casing. A sensing element within the casing measures at least one parameter of the sample of fluid confined within the casing.

The present invention provides a method for measuring the viscosity and/or elasticity of a liquid by which accurate viscoelasticity measurement can be performed on a wide variety of liquids to be tested ranging from low viscosity liquids to high viscosity liquids, and viscosity and/or elasticity can be precisely determined from the viscoelasticity. This method includes: measuring three frequency values that are the resonance frequency value (f0) on the amplitude characteristic curve obtained through the vibration of the liquid tester 1 in the liquid being tested, a low frequency value lower (f1) than the resonance frequency value (f0) on the amplitude characteristic curve, and a high frequency value (f2) higher than the resonance frequency value (f0) on the amplitude characteristic curve; calculating the real part of the impedance of the liquid being tested, using the high frequency value (f2) and the low frequency value (f1); calculating the imaginary part of the impedance of the liquid being tested, using the resonance frequency value (f0); and calculating the viscosity value and/or the elasticity value of the liquid being tested from the real part and the imaginary part of the impedance.

A human or animal implant device including a first, inner sealed silicone sheet sac, a second, intermediate sealed silicone sheet sac completely surrounding the first, inner sac, and a third, outer sealed silicone sheet sac completely surrounding the second sac. Each sac has a coating of beeswax on inner and outer walls thereof, and the first, inner sac is filled with a substantially sterile liquid material, preferably of viscosity at least 15 cp. The second, intermediate sac and the third, outer sac are filled with aqueous saline solution.

An improved rheometer plate includes a smooth sensing surface with monolithically integrated miniature pressure sensors which do not interfere with the smooth surface. Pressure sensing diaphragms formed by the smooth surface deflect in response to local pressures against the surface to enable the measurement of unperturbed local pressures of materials sheared between plates. The pressure sensors are sufficiently small that measured pressures are considered to be significantly local properties compared to the size of the plate. Normal stress differences and viscosity of fluid are measured accordingly. The membrane covers a plurality of wells or recesses with pressure sensors located in the wells to measure the deflection of the membrane over the wells. Capacitive or other sensors may be used. The rheometer plate can be used as part of a slit rheometer with a slit of varying dimensions.

A slag composition containing steelmaking slag and from about 0.3 to about 10 weight percent of reducing agent. The steelmaking slag contains from about 20 to about 55 weight percent of calcium oxide, from about 8 to about 50 weight percent of ferrous oxide, from about 4 to about 20 weight percent of magnesium oxide, from about 8 to about 30 weight percent of silicon oxide, from 0.5 to about 10 weight per cent aluminum oxide, and from about 0.5 to about 10 weight percent of manganese oxide. The reducing agent contains from about 15 to about 70 weight percent of calcium carbide and from about 10 to about 50 weight percent silicon carbide, wherein the ratio of calcium carbide to silicon carbide is between 0.7 and 7.

A liquid ejection apparatus includes a valve which adjusts the flow rate of a recording liquid in a return passage connecting an outflow opening with a tank, a pump which supplies the recording liquid from the tank to the internal passage via the supply passage, a detecting unit which detects an operating state of the pump, and a calculating unit which calculates the viscosity of the recording liquid. The calculating unit calculates the viscosity of the recording liquid based on the operating state of the pump detected by the detecting unit, while the recording liquid in the tank circulates so as to serially pass through the supply passage, the internal passage, and the return passage.

The present invention relates to (i) a reactive ink for ink jet printing comprising a two-component system, the first component comprising a polymerizable monomer, and the second component comprising a polymerization catalyst, wherein the monomer is able to form a polymeric film at low temperature within thirty minutes, preferably within ten minutes, from contacting the catalyst, (ii) a process of making an image on a non-porous substrate using such a reactive ink, and an ink jet print head including a two component ink-system.

A process is described for measuring a property of oil extracted from a sample, for example, the viscosity or density. The oil is extracted from the sample using a volatile polar first solvent. A portion of the extracted oil is used to determine a concentration factor. A dry weight of the oil in the sample is calculated using the concentration factor. A second solvent less volatile than the first solvent is added to the remaining extract. The first solvent is substantially removed from the remaining extract. Different amounts of the second solvent are removed from each of a series of sub-samples taken from the remaining extract. Solvent concentrations and viscosity values and/or density values of the solvent-oil mixtures are measured for each sub-sample. Based on the measured solvent concentrations and viscosity values and/or density values, the second-solvent free viscosity and/or density of the oil in the sample is estimated.

The invention discloses a printing ink viscosity regulating device for a printing machine. The device comprises an electric controller and an ink fountain, wherein the electric controller is connected with a viscosity detection sensor arranged on the ink fountain, the ink fountain is respectively connected with an ink storage box and a solvent box through pipelines, an electromagnetic valve is arranged on the pipeline through which the ink fountain and the solvent box are connected, and the electric controller is connected with the electromagnetic valve through a wire so as control the amount of solvent injected into the ink fountain. The device is provided with the electric controller and the viscosity detection sensor, viscosity of printing ink is automatically regulated through the electric controller, not only is manpower saved, but also accuracy of the viscosity of the printing ink can be guaranteed, it is guaranteed that patterns of presswork are clear and consistent, and a good printing effect can be achieved.

If it is attempted to produce a polymer polyol at a high concentration, there will be a problem such that during polymerization of a monomer to form fine polymer particles, particles are likely to aggregate one another to form aggregates, and storage stability of the polymer polyol tends to deteriorate. A method for producing a polymer polyol is presented which comprises polymerizing at least one type of ethylenically unsaturated monomer together with a seed particle dispersion, in a polyol, wherein the seed particle dispersion is one obtained by polymerizing an ethylenically unsaturated monomer in the presence of an ethylenically unsaturated macromonomer, a solvent and a chain transfer agent, and the ethylenically unsaturated macromonomer is a reaction product of a specific polyol, an isocyanate compound and an ethylenically unsaturated monomer having a hydroxy group.

The invention discloses a high-efficiency temperature-control pressurized ejector stirring filtering reaction system. The high-efficiency temperature-control pressurized ejector stirring filtering reaction system comprises a cantilever driven by an electric hydraulic jack, wherein the cantilever is provided with a guide balancing bar, two ends of the cantilever are respectively provided with a lifting mechanism and a stirring mechanism, and the bottom of the stirring mechanism is provided with a reaction tank and a filter apparatus which are matched with the stirring mechanism; and the stirring mechanism is connected with a drive motor and a drive gear which are arranged on a horizontal central axis of the cantilever, the drive gear is connected with a gear ring by virtue of a planetary gear, the gear ring is connected with a first straight gear and a straight gear transmission shaft, the transmission shaft drives a stirring assembly, and the stirring assembly comprises a hollow shaft double-head pump. By arranging hollow blades, the high-efficiency temperature-control pressurized ejector stirring filtering reaction system is uniform in dispersion, low in noise, high in efficiency, more precise in stirring process by comprehensively and intelligently controlling the stirring speed and the feeding speed, more precise in temperature and viscosity control, better in product quality, shorter in time for obtaining consistent products, capable of saving the waiting time by virtue of double-workstation processing, capable of greatly improving the working efficiency and equipment compactness and capable of saving the space occupancy rate of equipment.

The invention discloses an alternative double-station high-efficient intelligent temperature control pressurizing stirring tank. The tank comprises two tank bodies, a bottom preheater, a protection cover, a stirring motor, a double-head hollow pressurizing pump, a filtering device, a rotating mechanism, a solid shaft, a hollow stirring blade and a feeding pipe, wherein the top of the protection cover is connected with a lifting mechanism; the lifting mechanism is arranged on a horizontally rotatable cantilever; the rotating mechanism comprises a rotating motor connected with one end of the cantilever; one end of the solid shaft is connected with a main shaft of the motor while the other end of the solid shaft is connected with the hollow stirring blade; a rotating plate is arranged at the upper end of the solid shaft; a liquid inlet slot is formed in the top of the rotating plate. According to the invention, the hollow impeller is arranged, so that the dispersion is uniform, the noise is low and the efficiency is high; the stirring speed and the feeding speed are comprehensively and intelligently controlled, so that the stirring process is relatively accurate; the temperature and viscosity control is relatively accurate; the product quality is relatively high; the time for acquiring the uniform products is relatively short.

The present invention provides process for the manufacture of an aqueous resin composition comprising a phenolic formaldehyde (PF) resin, which process comprises the steps of: providing a formaldehyde and phenolic compound, reacting said compounds in a condensation reaction in the presence of a catalyst, after completion of the condensation reaction to react with free formaldehyde, determining the free formaldehyde content of the resin composition, adding a pre-calculated substantially stoichiometric amount of modifying compound containing a primary amine group to reduce the amount of free formaldehyde in the resin composition to less than 0.1 wt % (relative to the total weight of the aqueous resin composition), and optionally distillation of the reaction product.

There is provided a liquid discharging apparatus including a liquid discharge head, a tank, and a controller configured to perform: estimating an amount of liquid remained in the tank; estimating a viscosity of the remained liquid; estimating an amount of the refilled liquid; estimating a viscosity of the refilled liquid; and estimating a viscosity of a mixed liquid of the remained liquid and the refilled liquid at a point of time of finishing a refill of the tank with the liquid, based on the estimated amount of the remained liquid, the estimated viscosity of the remained liquid, the estimated amount of the refilled liquid, and the estimated viscosity of the refilled liquid.

The invention discloses a device for quickly mixing, automatically delivering and filling slurry, wherein the bottom of a slurry stirring container of a slurry stirring device is positioned in an accommodating groove of the upper end surface of a delivery and temperature control platform, a stirrer is positioned in the slurry stirring container, and a stirring shaft of the stirrer is installed on an output shaft of a liftable motor; 2-5 layers of stirring wings are rotatably and fixedly installed on the stirring shaft of the stirrer, each layer of stirring wing comprises 2-5 wing type blades, the wing type blades of the adjacent layers are installed on an inner shaft of the stirring shaft in a staggering way, when the device works, the wing type blades of the lowermost layer are upswept, and the wing type blades of the other layers are downwarped; and an outlet of a slurry delivery pipeline of the delivery and temperature control platform is connected with a slurry automatic delivery and filling device through the slurry pipeline. The device is used to stir and delivery the slurry, the slurry can be more uniformly stirred, no dead angle is generated, the accuracy degree of a slurry filling position is high, the filling amount is more uniform, and the device is convenient for specific industrial use.

The present invention provides a dairy product which endures cryopreservation for a long period, and also has viscosity suited for use in a dispenser for beverage. An emulsified composition containing a milk fat content, a milk protein content, a disaccharide alcohol and an emulsifier in a certain ratio is prepared. A ratio of each component of the emulsified composition can be obtained by accurately adjusting the amounts of raw materials such as milk, whole milk powders, butter, cheese, cream, condensed milk, butter oil, butter milk and butter milk powders serving as a milk fat source and a milk protein source; a disaccharide alcohol; an emulsifier; and moisture.

In an electric power steering system providing steering assist by applying a power of an electric motor to a steering mechanism via a reduction mechanism, the steering mechanism extending from a steering member to dirigible wheels, a grease (viscous material) is applied to a meshing engagement portion between teeth portions disposed on a motor-power transmission path extending from the electric motor to the steering mechanism via the reduction mechanism, the grease having a viscosity constant C satisfying 0.8 Jωp≦C where J denotes the inertia of the electric motor, and cop denotes the resonant angular frequency of the steering mechanism including the electric motor and the reduction mechanism. This provides for the prevention of the occurrence of rattling noises caused by a vibration system including the reduction mechanism and the electric motor and the degradation of the steering feeling.

The present invention provides a curable unsaturated resin composition, which has less odor characteristics and high safety and is also superior in thin film coating characteristics in a coating film. The curable unsaturated resin composition contains a polymerizable unsaturated resin (A) having two or more polymerizable unsaturated double bonds in a molecule, a hydroxyalkyl (meth)acrylate (B), and an unsaturated compound (C) having one or more cyclohexene rings and two or more allyl ether groups in a molecule, which is liquid at normal temperature.