Possibilities for minimizing uncertainty of dissimilar materials
gauge blocks calibration by mechanical comparison, Measurement, Vol.
National standard for length in Slovenia comprise of 122-piece set of steel
gauge blocks, ranging from 0,5 mm to 125 mm and some additional steel
gauge blocks of length up to 1000 mm.
Maintaining parallelism between the two end faces of
gauge blocks requires particular mounting conditions.
This extra control, coupled with improved operational procedures, has allowed a faster throughput of
gauge blocks and reduced NPL's measurement uncertainty claim to better than half for longer
gauge blocks.
Broomfield's tungsten carbide
gauge blocks are used by manufacturers - including aerospace engineers, glassmakers and the oil industry - who need to make precision measurements.
For dimensional metrology, management's ultimate tool for technologically ensuring precision, and the product reliability depending on this precision, is the use of
gauge blocks, including the all-important master set of some 81 individual blocks.
Place gauge on block on the table directly under the infeed roll and move the table up until light contact is made between roll and
gauge blocks. Move
gauge block across full width of table and check clearance on left end.
Non-steel materials of
gauge blocks are increasingly gaining its popularity, among them especially oxygen ceramics with its mechanical properties being close to the steel.
While
gauge blocks are not quite dead yet, they are also not quite alive.
The company, which supplies metal
gauge blocks for the manufacturing industry, has moved from Broomfield House at Firth Street, Huddersfield.
For example, consider a hand held micrometer that is calibrated for measuring work-pieces with flat and parallel surfaces by measuring several calibrated
gauge blocks (with surfaces larger than the micrometer anvil size).