PC-based platforms measure contour, roughness
Test & Measurement World Staff - October 17, 2012
Mahr Federal’s MarSurf LD 130 and LD 260 stationary PC-based instruments perform combined roughness and surface measurements, determined by a single stroke, while boasting long travel lengths, as well as fast positioning and measurement speed.
Additionally, the units feature a biomimetic probe arm, dynamic measuring force, and low residual noise.
Building on the company’s MarSurf LD 120, the LD 130 and LD 260 provide longer travel lengths of 130 mm and 260 mm, respectively, to allow the measurement of larger parts. The manufacturer reports that with travel speeds of up to 200 mm/s and measuring speeds of up to 10 mm/s, depending on the surface, measuring cycle times can be reduced by as much as 50%.
Improved dynamic response of the probe also helps increase measurement speeds and reduce measurement cycle time by allowing the probe to better track the part surface. Dynamic measurement force enables the drive units to operate at angles of ±45° from horizontal. Further, the residual noise signal of the LD 130 and LD 260 has been reduced. This is the roughness error that would still be recorded if the probe traced a perfectly flat surface. In the LD 120, this was specified at between 34 nm and 40 nm Rz. In the new units, this has been reduced by nearly 50% to 20 nm Rz.
The MarSurf LD 130 and LD 260 systems are available in a number of different configurations and with a range of probe tips and other accessories.
More information: www.mahr.com/index.php?NodeID=14323&ContentID=13760
Mahr Federal, www.mahr.com