In-line viscosity measurement systems and related methods may be useful in measuring the viscosity of a fluid in a flow path and, more specifically, in-line measuring the viscosity of a drilling fluid when integrated with drilling systems. For example, a method may include drilling a wellbore penetrating a subterranean formation while circulating a drilling fluid through the wellbore; measuring the viscosity of the drilling fluid with an in-line viscometer system after the drilling fluid has circulated through the wellbore, the in-line viscometer systems comprising either: (1) a two coaxial cylinder configuration, (2) a parallel plates configuration, or (3) a combination thereof positioned to allow for the drilling fluid to flow between the coaxial cylinders or parallel plates.

A rotary viscometer includes: a measurement rotor that comes into contact with a fluid whose viscosity is to be detected; a rotating shaft that is connected to the measurement rotor; a drive part that rotates the measurement rotor via the rotating shaft; a measurement part that measures the viscosity of the fluid on the basis of torque generated in accordance with rotation of the measurement rotor; a housing that accommodates at least the measurement rotor, the rotating shaft, and the drive part; and a window part that is provided in the housing such that the rotating shaft is observable from the outside.

The use of recycled materials can have significant economic value. With the increasing quantity of recycled material used in viscoelastic materials, especially asphalt mixture, understanding how they interact with original materials to produce a mixture that performs successfully, becomes critical. Currently, the technology to determine the effect of additives on the performance of asphalt mixture is lacking. The present invention relates to a new unified methodology for mechanical testing of asphalt mixture and other viscoelastic materials that improves the current practice in speed, convenience, and accuracy. A new improved specimen mounting method on Dynamic Shear Rheometer (DSR), a new recovery method for fine portion of asphalt mixture, and three new tests for the performance of recovered material using DSR is disclosed. The new methods provide performance grading of asphalt mixtures that is new to the industry and provide necessary tools for determining the effect of recycled materials on performance.

The use of recycled materials can have significant economic value. With the increasing quantity of recycled material used in viscoelastic materials, especially asphalt mixture, understanding how they interact with original materials to produce a mixture that performs successfully, becomes critical. Currently, the technology to determine the effect of additives on the performance of asphalt mixture is lacking. The present invention relates to a new unified methodology for mechanical testing of asphalt mixture and other viscoelastic materials that improves the current practice in speed, convenience, and accuracy. A new improved specimen mounting method on Dynamic Shear Rheometer (DSR), a new recovery method for fine portion of asphalt mixture, and three new tests for the performance of recovered material using DSR is disclosed. The new methods provide performance grading of asphalt mixtures that is new to the industry and provide necessary tools for determining the effect of recycled materials on performance.

A rheometer has rotary rheometer and a linear DM(T)A analysis unit. A measuring shaft of the rotary rheometer carries a measuring part that faces a measuring part carried on an adjusting rod of the linear analysis unit. The sample under test is placed in a measuring gap between the measuring parts. The DM(T)A analysis unit has a linear motor, in particular magnetically operated, with a stator and a slider, and a magnetically-operated gravitational compensation unit, by way of which it is possible to compensate for the weight force of the adjusting rod, the measuring part on the adjusting rod, the slider, and any optional the components fastened to the slider.

A rheometer includes a measuring shaft unit being rotatably mounted in a stationary support unit and having a measuring shaft carrying a measuring part. Transmitting units having optical transmitters are disposed on the support unit and receiving units having optical receivers are disposed on the measuring shaft unit for data transmission therebetween. A measuring sensor disposed on the measuring shaft detects at least one parameter. The transmitting and receiving units are disposed between the measuring shaft unit and the support unit and are associated with one another for exchanging data. The optical transmitters on the support unit transmit data and energy to the optical receivers on the measuring shaft unit. The transmitting units feed or transmit to the optical receivers at least energy required by the optical transmitters on the measuring shaft unit and the measuring sensor to output or transmit data to the optical receivers.

According to the present invention, in an electrode ink, ionomers are adsorbed around a catalyst carrier to form a primary aggregate which does not aggregate with another catalyst carrier, and catalyst carriers aggregate together to form a secondary aggregate. In this method for determining a good-quality product of an electrode ink, the modulus of elasticity of the electrode ink is detected. Furthermore, on the basis of the modulus of elasticity, the states of the primary aggregate and the secondary aggregate in the electrode ink are estimated, and, if the contained amount of the primary aggregate is greater than that of the secondary aggregate, the electrode ink is determined to be good-quality.

The measuring device for viscometric analysis on a biological fluid, comprises a base frame and a support element associated with the base frame, having an elongated shape and with: a first ending part associable with motor means to set in rotation the support element around an axis of rotation (A); a second ending part opposite to the first ending part and positionable in contact with a fluid to be analyzed contained in a collecting vessel; sensor means adapted to measure the viscosity values of the fluid; wherein the sensor means comprise a first sensor element and a second sensor element associated with the support element and operable in rotation around the axis of rotation (A) at a predefined rotational speed, and operatively connected to optical means adapted to detect a speed change between the sensor means depending on said viscosity values.

A high-speed rheometer includes a base, a driving device disposed on the base, a lower sample assembly connected with the driving device, an upper sample assembly disposed above the lower sample assembly, a torsion bar disposed on the upper sample assembly and being torsional upon the rotation of the upper sample assembly, and an optical torque measuring assembly. The lower sample assembly is rotatable under the driving of the driving device, and the upper sample assembly is rotatable under the driving of the fluid. The optical torque measuring assembly is used to measure a torsion angle of the torsion bar so as to obtain a torque generated during shearing the fluid to be tested.

A viscometer arrangement includes a detection system for detecting the proper placement of a rotor. An optical detection system may be used to detect the presence of an obstruction between the upper and lower dies while the upper and lower dies are in an open position.