MR. ASPINALL PARR has aimed at giving a description of all the leading electrical measuring instruments on the market, and he has carried out this object with a painstaking thoroughness worthy of a ...

The demand to increase energy efficiency in electrical products is driving the development of more accurate measurement instruments. Modern instruments now can quantify incremental gains made as ...

The electronic gauge is designed for measuring wheel rolling circle diameter with high precision. Measurements are made directly on rolling stock without wheelset roll-out. This is performed according ...