Straightness Data Routine

Data analysis and calculations for measuring straightness

How to Measure Straightness With the Microgage

illustration-e1517941052615 — The laser transmitter projects a straight reference beam that passes over the surface or object to be measured. The receiver is then placed on the surface, track, rail, shaft or item to be checked and the display shows the height from the bottom of the receiver housing to the center of the laser reference beam. Taking multiple linear measurements provides a profile of the surface.

Step by Step Instructions

Place receiver at Distance A, and record readings in table.
Place receiver at Distance B, and record readings in table.
The calculated rise over run is a factor that can now be applied to any measured distance.
Record any further measurements in the table in increasing increments of distance, and the deviation from the calculated line will be reported.

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Typical Linear Measurement Applications

Measuring straightness of long machine beds
Checking for runout on moving slides, tables and stages
Measure bend and profiles in tracks and guide rails
Shaft and drive alignment
Positioning bearings and shaft supports over long runs

Monitoring surface deflections and bending in long structures
Aligning long rail and track sections
Checking roll flatness and profiles
Measuring deflections on rams, actuators, and extrusion presses
Other measurement of linear deflections

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