Malvern Instruments Limited

Bohlin Instruments Limited

Malvern International, Ltd.

Malvern Panalytical Inc.

John Paul Wilkinson

Joanne Elizabeth Langridge

James Francis Thomas

Samiul Amin

Nigel Evans

Ian Pearson

Stephen John Ritchings

Tim Jackson

Justin Titus Tun

A rotary rheometer is disclosed that includes improved control logic. This logic can provide continuously sampled force control logic, compliance control logic, adaptive control logic, anti-windup logic, and/or inertial correction logic.

Rheometer control system

A rheometer is disclosed that includes rheometry logic that is responsive to a material selection control, to an objective selection control, to material property storage, and to process parameter storage, and is operative to assist the user with a measurement using the rheometer. In another general aspect, a rheometer includes sample history storage operative to store a history that spans a plurality of different operations performed by the rheometer on a same sample.

Expert-system-based rheology

Rheometer, also usable for stress-strain-investigations, with at least one bearing () having an adjustable stiffness in a direction normal to the bearing surfaces (). The instrument further includes a system () for controlling a parameter for adjusting the stiffness of the at least one bearing (); a system () for determining a value of a quantity associated with a second force exerted between the rotor () and the stator () and opposing the force associated with the quantity to be determined; and a data processing system for correcting the determined value of the quantity associated with the second force by a bias value, obtained using a mapping having as a parameter a variable representative of the parameter for adjusting the stiffness.

Instrument for determining a quantity associated with a force exerted on a rotor

A rheometer uses a removable integrated environmental control cartridge that includes at least one environmental control unit, at least one supply port operative to interact with the supply port for a chassis of the rheometer. It also includes at least one mechanical alignment interface that is operative to interact with the mechanical alignment interface of the chassis to align both the mobile part with respect to the fixed part and the chassis supply port with respect to the environmental control cartridge part. In another general aspect, a rheometer can use an environmental control cartridge interface operative to report an identity of the integrated environmental control cartridge to an environmental control cartridge identification interface of its chassis.

Rheometer with modular environmental control system

Closed loop rheometer

Growing community of inventors

Gloucester, United Kingdom

John Paul Wilkinson