110results about "Viscometer maintainance" patented technology

The grade of oil used in a machine or apparatus can be determined by determining a temperature and pressure within an oil supply and determining the oil grade in response to determining the temperature and pressure.

A method and system for analyzing and controlling the curing of a composite material part using information derived from composite material test samples obtained using an ex-situ analytical device.

System and methods are described for dynamically controlling operation of a rheometer. A program is created on a programming interface for executing a test upon a sample in a rheometer by receiving user selections of a plurality of nodes and connections of each node to another node according to directional connection indicators. Nodes indicate steps for performing a test upon a sample or configuring a rheometer for performing a test upon a sample. Scripts are created for generating a sequence of instructions to the rheometer. The scripts include instructions for performing steps indicated by each of the selected nodes and in accordance with the directional connection indicators. Low-level instructions are downloaded from the scripts for execution in the rheometer, and drivers in the rheometer are instructed for performing the downloaded instructions.

Apparatus and methods for the continuous measurement of specific gravity or density of solids in a fluid medium are disclosed. A system for continuous measurement of density of a flowing medium comprises a cartridge connected in series to an inflow pipe and an outflow pipe, a displacement sensing device adapted to monitor displacement changes of the cartridge when a medium flows through the cartridge, a base configured to provide a support for the displacement sensing device, a pressure sensor, a temperature sensor, and a processor configured to calculate density of the flowing media based on measured displacement change, temperature and pressure.

A pressure differential meter (13) measures and the volume flow rate of a liquid (6) and a Coriolis meter (14) monitors the density of the liquid (6). When the density as monitored by the Coriolis meter (14) indicates that density is reaching the range limit of the pressure differential meter (13), the pressure differential meter (13) is re-calibrated.

The invention provides a device for online detection of oil product density and viscosity, The device comprises an electrode sealing casing, a piezoelectric plate arranged in the electrode sealing casing, a detection unit and a processing unit, wherein the detection unit and the processing unit are arranged on two opposite end faces outside the electrode sealing casing. The detection unit comprises a piezoelectric vibrator, and the processing unit comprises a processor, a signal stimulation module and a signal collection module. The piezoelectric plate is electrically connected with the processing unit through a first electrode lead, and the electrode sealing casing is provided with a through hole for the first electrode lead to penetrate. The signal stimulation module stimulates the piezoelectric plate to vibrate. The processor calculates the oil product density and viscosity according to vibration frequency and vibration impedance of the piezoelectric vibrator collected by the signal collection module in an oil product. The device detects density and viscosity indexes of the oil product simultaneously, the problems of poor timeliness in off-line measurement and laboratory measurement are solved, and outburst faults can be timely captured to avoid or reduce a loss.

The present invention is a capillary rheometer cleaning and packing device comprising: (a) a linear motion device for creating controlled linear motion in a linear motion rod, wherein the linear motion rod is adapted to receive a cleaning/packing rod; (b) a housing securing means wherein the securing means is adapted to secure an existing capillary rheometer housing to the cleaning and packing device such that a barrel mounted concentrically within the capillary rheometer housing is positioned coaxially below the linear motion rod; and (c) a means of attaching the capillary rheometer cleaning and packing apparatus to an existing capillary rheometer.

The invention provides a viscosity detector, comprising a main unit box (1), and a control device, a display device and a detection device arranged in the main unit box (1). The detection device comprises a detection platform (2) arranged in the main unit box (1), the top of the detection platform (2) is provided with an injection hole (21), a capillary (22) is arranged in the detection platform (2) and is connected with the injection hole (21) through a labyrinth passage (23), two sides of the detection platform (2) are provided with opposing detection holes (24) to detect viscosity of a liquid in the capillary, and a heating device (25), a refrigerating device (26) and a temperature sensor (27) are arranged on two sides of the capillary (22) inside the detection platform. The viscosity detector can provide quick heating, refrigerating and thermal insulation, allows oil to be injected more conveniently and reasonably, allows pressure in the capillary to be more stable and provides effectively improved detection precision.

The invention relates to a determination apparatus and determination method of flowability of coal water slurry based on digital image technology. The determination apparatus is characterized by comprising a pedestal, a charging tray, a vertical support, a robotic arm guide rail, a power apparatus, a robotic arm clamping device, a container, a shooting device and a control apparatus. The top of the pedestal is provided with a groove, the charging tray for loading released coal water slurry is fixed in the groove, the vertical support is fixed at one side of the top of the pedestal, and the robotic arm guide rail is in slide arrangement with the vertical support and is in fixed connection to an output end of the power apparatus. One end of the robotic arm clamping device is in fixed connection to the robotic arm guide rail, and the other end of the robotic arm clamping device clamps and fixes the container for holding coal water slurry. The shooting apparatus is in fixed connection to the vertical support and is in electrical connection to the control apparatus fixed on the vertical support. The determination apparatus and determination method can be widely applied to quantitative and qualitative determination process of flowability of coal water slurry.

The invention discloses a feedback and control system and method for rheometer shearing stress in an unsteady test phase. The method comprises the steps that on the premise that a rheological curve of a test sample is smooth and continuous, discretization is conducted in a rheometer initial torque loading time domain; a mathematic relation between the actually-measured rotor angle speed and the torque should be applied at a next moment is determined; the rotor angle accelerated speed of the next moment is approximately acquired according to the measured rotor speed, and a torque value should be applied at the next moment is calculated according to preset shearing stress, the rotor angle accelerated speed and the rotating inertia of a rheometer rotating part, and control is conducted with the torque value. Accordingly, it is guaranteed that the real shearing stress on the rotor surface accords with a preset value, and the system and method are suitable for a rheological test operated under the condition that shearing stress loading is controlled by fluid of which the rheological property is related with time and have the certain universality and applicability.

A capillary bridge viscometer, comprises an input port (flow in) an output port (flow out) a first capillary tubing arm (R1) in a first hydraulic path between the input port and a first differential detection point (DP+), a second capillary tubing arm (R3) in a second hydraulic path between the first differential detection point (DP+) and the output port (flow out), a third capillary tubing arm (R2) in a third hydraulic path between the input port (flow in) and a second differential detection point (DP−), a fourth capillary tubing arm (R4) in a fourth hydraulic path between the second differential detection point (DP−) and the output port (flow out), an adjustable mechanical flow restrictor (20) in one of the first, second, third, and fourth hydraulic paths, wherein the adjustable mechanical flow restrictor (20) is operative to mechanically adjust a resistance to flow of a fluid while the fluid flows through the adjustable mechanical flow restrictor.

A rheometer is disclosed that includes rheometry logic that is responsive to a material selection control, to an objective selection control, to material property storage, and to process parameter storage, and is operative to assist the user with a measurement using the rheometer. In another general aspect, a rheometer includes sample history storage operative to store a history that spans a plurality of different operations performed by the rheometer on a same sample.

The invention relates to an intelligent Gieseler fluidity tester which comprises a base, a mechanical arm, a heating furnace I, a heating furnace II, a constant torque transmission device, a steamingrack device and a control system, wherein the heating furnace I and the heating furnace II are arranged on the base, the mechanical arm is arranged between the heating furnace I and the heating furnace II and is formed by sequentially connecting a rotating arm, a lifting arm and a horizontal arm, the constant-torque transmission device is arranged on the horizontal arm, and a transmission shaft inthe constant-torque transmission device is in butt joint with a stirring shaft in a coal steamer; the heating furnace I and the heating furnace II are arranged on a rotating path of the horizontal arm, a retort frame device is further arranged on the rotating path of the horizontal arm, and coal retort clamping and sleeving positions are arranged on the two sides of the retort frame device respectively and used for containing coal retorts; the control system is used for coordination control of the mechanical arm, the first heating furnace, the second heating furnace, the constant-torque transmission device and the steaming rack device. The invention has the characteristics of high reliability, high automation degree, high working efficiency and high experimental precision, and can bettermeet the requirements of modern coking or iron and steel enterprises.