MOOR INSTRUMENTS moorLDI2 RESEARCH USER MANUAL
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If the distance factor software is not available the user can apply his/her measured multipliers (found
by taking flux measurements from the motility standard at 30cm and at at the chosen measurement
distance) using the moorLDI image processing software. This has a multiplier operator as illustrated
in Figure 3. Multiplier = (Flux at 30cm)/(Flux at measurement distance). For consistency with Table
1 it is advised that the distance entered is kept at 30cm ie 30cm for the chosen measurement distance
and the 30cm distance.
Note the conditions for measuring from the motility standard are those advised for
calibration
:
•
moorLDI to be switched on 30 minutes prior to measurements.
•
Low level background lighting (no bright sunlight!).
•
Minimum vibration of scanner and motility standard (solid floor or stable bench).
•
Motility standard to be at room temperature - leave in place for 1 to 2 hours.
•
Motility standard gently shaken for a few seconds and allowed to stand for 1 to 2 minutes before
the measurement.
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