Calipers

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Calipers: Articles

What You Must Know About Calipers

The dial caliper is a dual-purpose instrument and can make either direct or comparative measurements. To make a comparison, first measure the reference dimension and set the dial indicator to zero. Then measure the dimension to be compared. The indicator will show how much the compared dimension varies from the original (plus or minus).(Click on photo to enlarge it)
This primer on various measurement processes by George Schuetz of Mahr Federal shows you how to match different caliper designs with selected applications to prevent measurement errors from creeping in.

True Position Measurement

The advent of portable CMM technology has greatly reduced the difficulty of measuring GD&T properties, including the deviation from true position of features. The combination of hardware and software allows the user to take points easily and quickly and the software uses best fit algorithms to give the user accurate, virtually instantaneous, results.(click on photo to enlarge it)
Inspection of a bore in an open setup often requires multiple measurement steps and mathematical calculations, but portable CMM technology from FARO can alleviate much of this work by allowing the user to fix the part in one spot, take several points to create an alignment of X- and Y-axes, and measure the bore. Software then determines the position of the bore and its deviation from the called out position.

Comparative ID/OD Gaging

Part two of our series on various measurement processes examines the factors that must be considered when selecting ID/OD comparator gages.

View the entire Calipers article archive

 

Calipers: Products

Wireless Data Transmission Built Into Digital Calipers

With a sleek new-look, MarCal 16 EWRi digital calipers are easier to read with a large clear digital display, and include a number of advanced features, such as lapped guideways, a reference system that retains the zero position setting, and a number of product options and accessories. 
16 EWRi Digital Calipers from Mahr Federal use internal MarConnect transmitters and MarCom software for economical implementation of secure wireless data transmission.

Lifetime Warranty on Precision Electronic Measurement Instruments

Selected electronic calipers, electronic indicators and electronic micrometers from Fowler. 
Fowler/Sylvac now offers a lifetime warranty on select measurement tools.

Digital Caliper Line Offers Wireless Data Output

Mahr Federal offers a broad line of MarCal calipers for a wide range of outside, inside, depth, step, and compound measurements. The MarCal line includes standard, special, and universal digital, dial, and mechanical calipers, as well as workshop calipers, depth calipers, and a line of linear machine scales with digital display.(Click on photo to enlarge it)
In addition to calipers with standard jaw designs, the MarCal line also includes a number of specially designed contact tips for measuring special part characteristics, and even jaws with replaceable and configurable contact points.