METHOD FOR SAMPLE DIAMETER CHANGE MEASUREMENTS, ESPECIALLY FOR CYLINDRICAL SAMPLE OF MATERIAL AND A MEASURING INSTRUMENT THEREFOR

摘要

3. A measuring device for measuring changes in the diameter of a sample of a material, especially of a cylindrical sample, characterised in that it has a vibrations generator (5, 7) with a divided capacity, whose induction coil (5) located in the vibrating circuit of the generator (5, 7) is the measuring device's sensor, and the coil is in the toroidal form and is elastic, and also the generator (5, 7) is fitted with the frequency indicator (8) scaled in the units of length.IMAGE