Internal and external length measurememnt from Mahr
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The updated Linear range of compact length measuring instruments from Mahr comprises three models – Linear 100 (application range 0-100 mm), Linear 800 (0-800 mm) and Linear 1200 (0-1,200 mm), all of which are DN EN ISO 9000-compliant and capable of the fast and precise measurement of workpiece internal and external dimensions.
Suitable for shopfloor use, the Linear range puts sub-micron measurement capability directly into the hands of the precision machinist when measuring both lengths and diameters.
These units are also suitable for checking measuring devices such as micrometers, depth gauges and calipers. In any of these applications, it is possible to switch from internal to external measurement at any time, without needing to re-calibrate, with interchangeable anvils contributing to optimum part measuring versatility.
Resolution is switchable - 0.1, 1 and 5 micron - with measured values displayed on a Unitron twin-channel digital display. This 10-digit display has a large number of measuring functions and an RS 232 interface to transfer data to PCs. Optional Optoface software allows measured values to be transferred to Windows programs such as Microsoft Excel.
Length (L measured in millimetres) deviation on all three Linear models is 0.7 + L/1000 µm, and an integrated measuring system based on the Abbé Principle (ie, the measuring arm and reference are in line) eliminates cosine (angular) error.
