CONTROL DEVICE AND CONTROL METHOD OF COATING AMOUNT OF PERMEABLE TRANSPARENT PAINT

摘要

PROBLEM TO BE SOLVED: To provide a control device for a coating amount capable of detecting a coating range and the coating amount of a permeable transparent paint permeating into concrete.SOLUTION: A control device includes a luminance meter 1, a light shielding box 2 attached to a lens cylinder 11 of the luminance meter 1 and having only one opening side, and an ultraviolet light source 21 installed inside the light shielding box 2. The ultraviolet light source 21 emits ultraviolet light of 330 to 400 nm.