The principle is to get the size of the block to be measured by comparing the measuring point with the measuring block.
The following are the technical parameters of German FMS and their comparison with other instruments:
Measuring workstation for calibrating parallel gauge blocks
Fast, reliable and high precision (uncertainty, such as 1)
Measuring range: 0.5 ~100 mm
Repeatability: 0.0 1 micron meter
Uncertainty: 0.03 micron+0.3 x liter (liter in meters)
A set of 6 pairs of gauge blocks in EMP II calibration annex, each set of K-level accuracy meets the following requirements:
EAL-G2 1 European Laboratory Accreditation Union for Calibrated Gauge Block Comparators
DKD-R 4- 1 German Calibration Service (DKD) guidance document is used to calibrate the gauge block comparator pair1(a = 0.5 mm; B = 0,5 mm) versus 2 (A= 1, 0 mm; B= 1, 005 mm) versus 3 (A= 1, 0 mm; B= 1, 0 1 mm) versus 4 (a = 4,0 mm; B = 4,0 mm) versus 5 (a =100,0 mm; B =100,0 mm) versus 6 (a = 6,0 mm; B = 6,0)
A special groove gauge block (as shown in the figure) is used to determine the measurement deviation of the lower probe B.
Comparison of various gauge block comparators