Incipientus touch-free sensor

How does it work?

Incipientus offers touch-free and real-time flow visualization, monitoring, and direct production line control for the process industry. Key technologies are Ultrasonic Velocity Profiling (UVP) and UVP in combination with Pressure Difference (UVP + PD). The science and technology behind our products and solutions are based on more than 20 years of research, protected by a multitude of international patents.

Ultrasound Velocity Profiling (UVP)

Incipientus instrument uses Ultrasonic Velocity Profiling (UVP) techniques to measure an instantaneous velocity profile in fluids across the ultrasonic beam axis.

A sensor transmits a short sinusoidal ultrasonic pulse through the pipe wall that travels along the measurement axis into the liquid flowing inside a pipe.

When the ultrasonic pulse hits a small moving particle/microbubble suspended in the flowing liquid, part of the ultrasound energy scatters back to the sensor.

The time interval between two successive pulses is used to determine the flow velocity. Many pulses are sent to track the flow and are separated by a fixed pulse repetition frequency.

Ultrasound Velocity Profiling (UVP) + Pressure Difference (PD)

An ultrasound Doppler echography technique (UVP) measures the flow profile in a pipe. From this the shear rate distribution in the pipe is determined.

A pressure drop measurement (PD) is used to determine the shear stress distribution in the pipe.

The complete multi-point rheogram (shear stress vs. shear rate) is then determined from a single flow profile and pressure measurement. The max shear rate depends on the flow rate in the pipe.

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Johan Wiklund