z8000 Fast EIT

The z8000 is essentially a resistance tomography instrument that can also measure impedance; phase and reactance. Impedance can measure real and imaginary parts, which gives another set of data to understand complex materials and how they are distributed in the course of a process. The z8000 can capture data 1,000 dual frames per second, which enables it to measure rapid flows or any process which is fast moving.

In contrast to many systems-based measurement techniques, tomography sensors are able to rapidly sense throughout a volume. Thus providing a dynamic picture of what is going on inside a pipe or vessel, e.g. whether a system is homogeneous.

Whilst our existing technology can measure flow, it can only resolve speeds of up to around 1.5 m/s. The z8000 instrument has been designed for those industries where rapid flows are present, such as the petrochem and the nuclear sectors. The instrument is suitable for multi-phase systems such as the measurement of flowing oil water systems and hydraulic conveying of slurries.

The development of the z8000 provides a reliable system developed to industrial standards to measure fast flows through a pipe or vessel.

Product Characteristics

• Single modality (ERT)
• Max No of electrodes: 32; 16 x 2 planes arranged in 1 and 2 planes

Benefits to users are:

• Measurement of rapid flows
• Increased process understanding
• More effective process development
• Improved and more consistent product quality

Acknowledgements:

Hua Lia, Mi Wang, Ying-xiang Wu, Gary Lucas (2008)

Volume flow rate measurement in vertical oil-in-water pipe flow using electrical impedance tomography and a local probe

Paper presented at the 11th International Conference on Multiphase Flow in Industrial Plant in Palermo, Italy, September 7-10, 2008

References:

Schlaberg HI, Jia J, Qiu C, Wang M, Li H (2008) Development and application of the Fast Impedance Camera - a high performance dual-plane electrical impedance tomography system, Proceedings of the 5th International Symposium on Process Tomography, Zakopane, Poland.

For more information on these papers, please contact ITS.