User Manual

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10. Application information
10.1 Slowing down motion
As discussed, the primary use of the Pocket-Strobe is to
slow down or “freeze” the apparent motion of moving
objects. This allows you to analyse their run-time per-
formances safely and easily.
To make an object appear to move in slow motion, you
need to strobe it at a rate slightly above or slightly below its
actual speed (or any harmonic of its speed as discussed
below). Simply use the COARSE/FINE ADJUSTMENT knob
until you achieve the desired apparent movement.
Helpful Hints:
The speed at which the object appears to move can be
determined by subtracting the flash rate from the object’s
actual rate.
Example:
If an object is rotating at 1,000 RPM and you strobe it at a
rate of 1,005 flashes per minute (FPM), the object will
appear to be moving at a rate of 5 RPM.
Speed = Actual Rate - Flash Rate
= 1,000 PRM - 1,005 PRM
= 5 RPM