True-Cal is an innovative solution to the problems presented by the accurate calibration of 3 point bore gauge micrometers. Any micrometer (from 16-200mm) can be calibrated on a single unit, and the True-Cal method dispenses with the need for large numbers of settings rings and provides more comprehensive results.
The True-Cal system relies on the use of slip gauges with an optional electronic transducer output. Operation is quick and simple, and requires no specialist skills.
Convensional ring gauge methods do not give comprehensive indications of linearity. True-Cal allows the gauge to be checked at any point on the range of the gauge being inspected.
True-Cal measurement are traceable through the slip gauges used and the certification of the angular setting block.
True-Cal simplifies gauge management by dispensing with the need for costly ring gauges and their periodic calibration. This reduces costs in both the long and short term.
True-Cal based on the 60° included angle principle (See fig. 1).
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