Lorrca MaxSis Program
Lorrca Maxsis User Manual Page 61
Version 5.04 MRN-231-EN
6.4.3.2. Stress curve determination Parameters
Settings parameter Description Range
First shear stress (Pa)
Last shear stress (Pa)
First and last shear stress to apply during the
determination of the deformability curve. By taking
"First" higher that "Last", the curve will be completed in
reverse order.
[0.01, 100]
Pa
Initial image
stabilisation time (ms)
Following camera adjustment at a high shear stress,
the measurement starts with the "first measurement-
shear stress", described above. The cells in the
suspension need time to adjust to each new shear
stress, especially when the shear stress for camera
adjustment is high compared to the first measurement-
shear stress. This parameter defines the initial cell
stabilisation time following camera adjustment. If the
standard deviation of the elongation measurement at
the first measurement-shear stress is still quite high,
the initial stabilisation time may need to be increased.
[0.1, 600] s
Intermediate image
stabilisation time (ms)
Like the stabilisation time mentioned in the former
parameter description, the cells in the suspension need
time to adjust to each new shear stress. This
parameter defines the time for stabilisation of the
suspension between subsequent elongation
measurements.
[0.1, 600] s
Measuring points on
curve
Determines the number of shear stresses that are used
to build up the deformability curve.
[2, 2000]
Valid determinations
per shear stress
Prescribes the number of subsequent EI
determinations (each from a newly acquired diffraction
image) to find the average EI (and SD) per shear
stress.
[2, 1000]
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