The RheOptiCAD® (in black in the center of the image) mounted on an inverted CLSM.
Example of zero velocity plane adjustment in order to focus on a plane inside of the free working distance. Left image: both plates move at the same rate, therefore the ZVP falls right in between the two plates, and partly outside the ZVP. Right image: V 1 is higher than V 2, therefore the ZVP is shifted towards the bottom plate into the middle of the free working distance.
3D-images of the RheOptiCAD®.
Functional scheme of the piloting software.
Parallelism and planarity of plates validated by a laser reflective method. 800 images (512 × 32 pixels) are adjoined in the z-axis direction for three different x-positions. Intensity profiles are plotted to the left of each z-stack and arrows indicate a maximum intensity value corresponding to a reflection.
z-position of each plate versus x-position over the entire length of a lateral travel. Gap width was 500 μm. Plotted points and standard deviation correspond to 3 repeats with 3 different pairs of microscopy slides. Dashed lines reveal the perfect planarity.
Evolution of plate position versus time for different strain jump amplitudes. (a) Between 0 and 1.2 s, (b) same results but between 0 and 0.02 s and positions between −0.02 and 0.02 mm.
Comparison of continuous deformations for = 0.1 s−1 (a), = 1 s−1 (b), and = 10 s−1 (c).
Images in the velocity-gradient plane for different velocity ratios v b /v t : 1 (a), 0.36 (b), and 0.13 (c). Gap width was 500 μm, and height of the image is the same as the width of the gap.
Example of oscillating motion (A = 0.2 mm, f = 0.5 Hz) of microgel containing fluorescent microspheres (ϕ = 1 μm) at T = 20 °C. Gap width was 700 μm. Accordance between images over time and theoretical signal (white line).
Images of bread dough submitted to an oscillation motion at t = 0 s (a, c) and t = 3 s (b, d) for 2 water content recipes: Recipe A = 55 wt. % and Recipe B = 60 wt. %. White pixels represent the gluten-protein network and black pixels correspond to air bubbles and starch granules.
Comparison of target values, specifications, and the real values of the shear cell.
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