TA Discovery Rheometer DHR-3

As a global leader in rheological technology, TA Instruments has recently launched the Discovery series rheometer (DHR). The DHR rheometer has multiple patented technological innovations, including a drag cup motor, second-generation magnetic levitation bearings, force rebalancing sensors, dual reading head optical encoders, force balancing sensors, and a real position sensor system, which are integrated together to form a structurally simple and high-performance single head rotary rheometer. Compared with the previous generation rheometer, the DHR rheometer has significantly improved performance and indicators, enabling unparalleled control of real strain, strain rate, and stress, as well as precise measurement of normal force. The intelligent recognition temperature control system and fixture system are both standard configurations on the DHR rheometer.

Product Features

• New generation strain measurement technology - dual head optical encoder
• Normal (axial) force balance sensor
• Second generation magnetic levitation thrust bearing
• Latest True Position Sensor (TPS)
• High performance cup dragging motor
• Active Temperature Control Technology (ATC)
• Radial control bearings

• Thrust bearing: magnetic levitation
• Radial bearings: porous carbon
• Motor design: cup dragging motor
• Maximum angular velocity: 300rad/s
• Dynamic minimum torque: 0.5nN. m
• Steady state minimum torque: 5nN. m
• Maximum torque: 200mN. m
• Torque resolution: 0.05nN. m
• Minimum frequency: 1.0E-07
• Maximum frequency: 100Hz
• Displacement resolution: 2nrad
• Maximum normal force: 50N