Target Distance / Measurement Field Diameter » Ratio - Chauvin Arnoux C.A 1864 Notice De Fonctionnement

C.A 1864 – C.A 1866
4.3 « TARGET DISTANCE / MEASUREMENT FIELD DIAMETER »
RATIO
This ratio, also known as the field of vision, indicates the diameter of the probes'
measurement field at a given distance from the target (see figure below).
In the case of a measurement point of small dimensions, it is important to bring
the probe to a short enough distance from the target, so as to avoid including other
points into the field of measurement.
Spot diameter (S)
Spot diameter (S)
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Laser beam
Sensor beam
Laser beam
Sensor beam
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