TA Instruments invites you to experience the innovations in rotational shear rheometers, the DiscoveryHybrid Rheometer HR 10, HR 20, and HR 30. The Discovery Hybrid Rheometers are designed for scientists whoneed to obtain better rheological data, under the wide range of measurement conditions, collected by moreusers, with less training.
Advances in core measurement technology enable more sensitive measurements with superiorprecision. This empowers you to measure lower viscosities and weaker liquid and soft-solid structure,while consuming less material. dynamic performance gives a higher level of accuracy inmeasurements of G’ and G” so you can make decisions quickly and with confidence.
Thoughtful hardware and software design results in a complete system that simplifies every userinteraction. Routine functions are faster and more intuitive, so you can accomplish more with lesstraining.
The performance of the Discovery Hybrid Rheometer is supported by the wide range of powerful,easy-to-use environmental systems and accessories that allow you to replicate demanding environmental conditions, incorporate complementary simultaneous measurements, or extend yourrheometer beyond conventional shear rheology.
Advances in core measurement technology enable more sensitive measurements with superior precision. This empowers you to measure lower viscosities and weaker liquid and soft-solid structure, while consuming less material. dynamic performance gives a higher level of accuracy in measurements of G’ and G” so you can make decisions quickly, with confidence.
Thoughtful hardware and software design results in a complete system that simplifies every user interaction. Routine functions are faster and more intuitive, so you can accomplish more with less training.
The performance of the Discovery Hybrid Rheometer is supported by the wide range of powerful, easy-to-use environmental systems and accessories that allow you to replicate demanding environmental conditions, incorporate complementary simultaneous measurements, or extend your rheometer beyond conventional shear rheology.The HR 10 builds on the field-proven accuracy and reliability of the Discovery Hybrid Rheometer family.
Sensitivity
All Discovery Hybrid Rheometers feature TA’s patented Magnetic Thrust Bearing which reduces basic system friction by 70% compared to traditional designs. By eliminating the contributions of high pressure, turbulent air flow from the measurement system, lower torques can be measured reliably and accurately.
The sensitivity of the magnetic thrust bearing is coupled with the NEW improved Advanced Drag Cup Motor. Enhanced torque precision increases the accuracy of every measurement, especially at low torques.
Dynamic Measurements
he storage and loss modulus, G’ and G”, are two of the insightful measurements provided by any rheometer. The HR 10’s Drag Cup Motor is optimized for accuracy in dynamic measurements. The low-mass and -radius design reduces system inertia by up to 80% compared to DC motors, corrections to oscillation data, especially at higher measurement frequencies. The result is a wider range of measurement frequencies, material types, and experimental designs.
Strain and Stress Control
The Discovery Hybrid Rheometer performs the experiment you want, whether stress-controlled, strain-controlled, or both. high-speed electronics and the responsive Advanced Drag Cup Motor provide the fast transient responses and control in any type of deformation. Optional Direct Strain oscillation provides real-time strain control at every point of the oscillatory measurement.
Reliability
The Discovery Hybrid Rheometers are designed with sensitivity to measure the softe materials, and are constructed to be rugged.
A rigid cast aluminum frame and rugged linear ball slide provide more than 60% greater axial and torsional stiffness than other designs and permit gap position resolution of 0.02 µm.
Two high-stiffness radial bearings stabilize the system from side loads exerted by samples or operators while the Optical Encoder Dual Reader further cancels displacement measurement drift associated with testing very stiff samples over long times.
The Advanced Drag Cup Motor provides stable control and measurement even when operating under conditions. Active and passive thermal systems manage heat and account for system temperature, guaranteeing measurement accuracy under all test conditions.
Advanced Technology
rue Position Sensor
The DHR includes the patented True Position Sensor (TPS) for gap accuracy. The TPS is a high-resolution linear position sensor that measures and compensates for the effects of thermal expansion in real time. Unlike competitive devices, the TPS eliminates errors associated with thermal expansion without the need for special high inertia iron core geometries and environmental systems. The TPS works with all Smart Swap™ geometries and Smart Swap™ environmental systems.
Normal Force Rebalance Transducer (FRT)
The Force Rebalance Transducer is the premier technology for normal force measurements. This active, non-compliant device accurately measures normal and axial forces without deflection. Competitive capacitive or strain gauge sensors rely on physical movement of the device to sense a force, resulting in measurement error. The FRT provides the accurate normal force measurement by driving the linear motor to maintain zero deflection at all times and conditions.