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Optical probes are interchangeable: the same CHRocodile C unit can store up to 8 different
calibration tables corresponding to different optical probes. The optical probe is totally passive,
only the CHRocodile C unit has an internal light source and electronic board which can be
considered as heat and electrical sources. However the optical probe is highly isolated from these
heat and electrical sources in order to avoid any thermal expansion which could affect the
accuracy of the sensor measuring process. Considering this opto-mechanical architecture the
CHRocodile C unit has no visible optical cable and the user don’t need to take care with this
particularly sensitive component.
2.9 Optical Head Specifications definitions
W.D : Working Distance
M.R : Measuring Range
S.D: Spot Diameter (Size)
M.S: Max Object Slope (specified for specular
object. On diffuse object, it is possible to
measure on slope up to 85°)
Fig 2-8: Optical probes specification definition
Acceptance Angle:
related to M.S
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