Rheometer for determining flow curve and viscosity function of non Newtonian fluid e.g. polymer melt, has inlet and outlet for flowing through liquid, where flow rates are determined using tracer particles, in liquid

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent describes a rheometer, an instrument designed to measure the flow properties and viscosity of non-Newtonian fluids like polymer melts. It features an inlet and outlet for the liquid, and utilizes tracer particles within the liquid to help determine the flow rate using sensor technologies such as laser doppler or ultrasonic doppler velocimeters. The system accurately measures the pressure difference and flow rate to determine the fluid's flow curve and viscosity function.

Use CasesContent extracted from patent full text and abstract with AI.

• Quality control in polymer manufacturing to ensure material consistency
• Research and development of new non-Newtonian fluids in the chemical or materials industries
• Process optimization in food production, pharmaceuticals, or cosmetics that use complex fluids
• Monitoring and adjusting industrial processes that involve the pumping or mixing of viscous, non-Newtonian liquids
• Educational or laboratory settings for studying the rheological behavior of fluids

BenefitsContent extracted from patent full text and abstract with AI.

• Enables precise and real-time measurement of non-Newtonian fluid properties
• Non-invasive measurement using tracer particles preserves sample integrity
• Versatile sensor options (laser doppler, ultrasonic doppler, local filter sensor) allow adaptability to different fluid types and conditions
• Improved accuracy in determining viscosity functions and flow curves, aiding in better process control
• Can be used for both Newtonian and non-Newtonian fluids, making it broadly applicable

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The rheometer has an inlet (1.1) and an outlet (1.2) for flowing through liquid. Two measured variables are determined in the form of a pressure leap between the inlet and the outlet and in the form of flow rate. The flow rates are determined using particles such as tracer particles, present in the liquid. A device for measuring the flow rates is attached to a flow channel (1). The device for measuring the flow rates is a local filter sensor or laser doppler velocimeter or an ultrasonic doppler velocimeter. An independent claim is also included for an evaluation method for determining flow curve and viscosity function of optical transparent Newtonian and non Newtonian fluid.