Ametek, Inc.

Sensata Technologies, Inc.

Regeneron Pharmaceuticals, Inc.

Sanofi Biotechnology

Mark Genovese

Keith W Kawate

Neil John Graham

Allen Radin

James A Salomon

Vanessa Marks

Stefano Fiore

Xiaohong Huang

John A Powning

Martine Jasson

Eric Visser

Janet Van Adelsberg

Chungpeng Fan

Hubert Van Hoogstraten

Chieh-I Chen

George Johny Joseph

Tanya Marie Momtahen

An embodiment includes an inertial torque device (ITD) for calibrating a viscometer. The ITD comprises a body, a coupling for connecting the body to a viscometer measurement interface, a rotatable inertial load device coupled to the body, an electric motor coupled to the rotatable inertial load device and coupled to the body, and a controller configured to calibrate the viscometer by controlling the electric motor to rotate the rotatable inertial load device at a predetermined acceleration to apply a predetermined torque to the coupling connected to the viscometer.

Intertial torque device for viscometer calibration and rheology measurements

An improved system and method of performing capacitance measurements that provides a fast digital response and a reduced output error. The capacitance measurement system includes a circuit configuration that has a variable capacitor and at least one reference capacitor connected to one another at a common node, which in turn is connected to the input of an analog-to-digital converter. The circuit configuration further includes an array of switches coupled between the variable and reference capacitors and the supply voltage, a reference voltage, and ground, respectively. The switched variable and reference capacitors are employed in conjunction with the A-to-D converter to perform, at the common node, a plurality of direct voltage measurements for use in generating an expression defining the capacitance of the variable capacitor.

Microprocessor-based capacitance measurement

Growing community of inventors

Taunton, MA, United States of America

Mark Genovese