Dynamic Shear Rheometer - QualiDSR Features

• Ultra-low inertia servo motor technology:
  • Achieves smooth positioning and drive speed regulation with toothless torque.
  • The ultra-low inertia hollow cup motor design delivers fast torque and speed response with outstanding dynamic characteristics.
  • Provides extremely high torque and power relative to the motor’s volume and weight.
  • An absolute linear relationship exists between current and torque, voltage and speed.
• Ultra-high precision sensing and measuring system:
  • Optical encoder with 104 rad resolution for accurate rotational displacement and velocity measurement.
  • Ultra-high sensitivity normal force sensor design with quick transient response, ensuring accurate force measurement and control.
  • Sensitive torque sensor for precise rotor torque measurement.
  • The ultra-high precision grating system measures and controls vertical position with 0.1 μm gap resolution.
• Temperature control unit:
  • Features a Peltier temperature control system with a high-resolution sensor for fast, precise temperature regulation.
  • Easy one-step plug-in design for power supply, communication, and fluid connections, ensuring quick, secure installation.
• Integrated design:
  • Combines mechanical, power, control, communication, and display components into a single compact unit, requiring high precision in design, processing, and assembly.
• Intelligent software:
  • User-friendly interface ensures optimal operation for rheological measurements.
  • Includes settings for fixtures, temperature, and test parameters for all DSR tests, minimizing operator influence.
  • Time-temperature superposition (TTS) used to generate the primary curve.

Dynamic Shear Rheometer - QualiDSR

Dynamic Shear Rheometer - QualiDSR analyzes the viscous (non-recoverable) and elastic (recoverable) characteristics of both aged and unaged asphalt. Operating within a temperature range of 41°F to 185°F (5°C to 85°C), it measures the dynamic shear modulus (G*) and phase angle (δ) of bitumen. This assessment helps predict asphalt's resistance to rutting and fatigue cracking.

Application

Asphalt, coatings, food, cosmetics, polymers, adhesives, pharmaceuticals, composite materials, and more.

Configuration

Main Unit, temperature control (circulation) system, asphalt fixture (8/25mm), asphalt testing software.