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BASIC CONCEPT


The mechanical concept and the basic elements are mostly the same as in the well proven oscillating gauges of the SMO series. Instead of power and signal transmission by a special cable solution, everything is now transmitted totally without contact. The rotating SMR models can be fitted with 1, 2 or 3 laser heads (axes). With 2 or even 3 heads, a full profile is generated after only 90 or 60 degrees respectively of the rotation. This means up to 10 full profiles/s. For non-round bars such as squares, hexagons, flats etc., the optional PROFILE software provides the respective processing and screens. Any SMR can be combined with other gauge models in a MULTIGAUGE system. The SMR is the ideal gauge for high speeds and when short faults anywhere around the 360° periphery must be detected.


Rotating Mode The rotating mode provides the full profile at a high update rate, including the absolute values for diameter and roundness, plus shape, faults and irregularities. The following explanations relate to 3-axis versions:


60°


Three ODAC laser heads, mounted under 60°, rotate continuously at close to 100 rpm and take 3 x 2000 measurements/s in a synchronous mode. This means approx. 10 measurements per degree, i.e. any irregularities like seams, overfills / underfills etc. are captured.


The periphery is divided into 2 x 3 segments. The software attributes then all arriving readings to the respective segments and a full profile is generated after only 60 degrees of rotation; this means close to 10 full profiles per second.


L1 L2


d L3


Rotating 60°


60°


60° 180° 0° dn d1 d2 d3 d4


60°


60°


60° 180° 360°


Close to 10 full profiles/s !


Static Mode This mode provides extensive information and high resolution in an axial (longitudinal) direction.


α


The rotating disk with the 3 ODAC heads can be positioned in a programmable, f ixed orientation .


measurements/s or totally 6000 measurements/s. This means an extremely short distance "s" between the measurements.


The bar is measured under 3 fixed axes d1


, d2 and d3


Examples: At 100 m/s At 10 m/s


3


s = 50 mm s = 5 mm


at 3 x 2000 60° L1


L2


L3


Fixed α d1 d2 d3


s 3 x 2000 measurements/s !


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