Rotational rheometer. (Instruments).

This provider of computer-controlled materials test systems used to make physical property measurements offers its Astra universal rotational rheometer system. Astra is said to incorporate a host of design and control features never before integrated into a dynamic shear rheometer platform. These features include a patented normal force sensor, enhanced software featuring a Visual Method Builder engine and an integral full color LCD touch screen, all of which are said to bring simplicity and flexibility in measuring a wide range of materials, including fluids, gels, soft solids, melts and solids during product development, product formulation and process development. Innovations to the actuator, air-bearing design and optical encoders, coupled with the integration of multiple, state-of-the-art directly embedded DSP controllers, are said to deliver unparalleled control speed over the functional components of the measurement system, while increasing accuracy, reducing test time and providing superior signal-to-noise ratio, according to the company. Astra's normal force sensor features a patented design that mounts the normal force sensor to the motor shaft. (Rheometric Scientific)

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