Ankersmid Eyetech

The Ankersmid Eyetech is a unique dual channel particle sizing instrument.  The Eyetech is available in three models; video only, laser only or dual channel, which model suits you will depend upon the application.

Laser Channel (0.5-1200µm)

The Eyetech system uses a unique time-size mapping called Time of Transition theory to directly measure particles size. A He-Ne laser beam (A), focused down to 1.2 spot, performs circular scanning by a rotating wedge prism (B) of the sample measurement volume (C). As the particles (moving or stationery) within the sample volume are individually bisected by the laser spot, interaction signals are generated. These signals are then detected by a PIN photodiode (D). Since the beam rotates at a constant speed, the duration of interaction provides direct measurement of each particle's size. The interaction signals are collected by a dedicated data acquisition card and analyzed in 600 discrete size intervals. Sophisticated pulse analysis algorithms are employed to reject out-of-focus and off-center interactions.

Video Channel (2-6000µm)

Two-dimensional shape information is essential for the true characterisation of non-spherical particles and aggregates. To meet these vital needs, the Eyetech systems use the power of image analysis. The shape analysis channel uses a CCD video camera microscope (F) to provide an optimal image for processing. Illumination is provided by a synchronized strobe light (E). Acquired images are passed to a frame grabber card for analysis and then displayed on a monitor for viewing.

Image analysis enables users to obtain far more information on a material than any technique that has to make a spherical assumption. Image analysis allows material to be characterised that is not possible using any other method such as fibres and needles, information such as fibre length and width can be accurately measured and monitored.

The powerful software even has the ability to group particles together according to their shape. For example, in a mixture of needles and spheres, the two groups of particles can be separately identified and analysed during a single measurement. This allows non-homogenous dispersions to be analysed but only data on the particles of interest to be collected.

The intuitive software uses wizards to guide the user through the process of setting up a measurement, making image analysis as easy as any other measuring technique.

Please contact us for any further infomation or email info@particletechnology.com