CRACK WIDTH MEASURE HAVING MAGNIFYING GLASS AND ILLUMINATION

摘要

PURPOSE: A crack width measure having a magnifying glass and an illumination is provided to accurately measure fine crack width even in dark places by using the magnifying glass and the illumination. CONSTITUTION: In an apparatus for measuring crack width of surfaces of a building and a structure, a crack width measure having a magnifying glass and an illumination includes an illuminating part(10) including a battery receiving part(12) formed inside of a housing(11), an illuminating lamp(14) connected to an electricity circuit of the battery receiving part in one side of the housing, and a switch(15) installed in the adjacent other side for opening and shutting the electricity circuit; a crack measuring part(20) positioned at a lower part of the illuminating part and formed with a transparent plate having scales and numbers displayed at regular gaps; and a magnifying glass(30) formed in the upper part of the illuminating part parallel with the crack measuring part.