| 摘要 |
PURPOSE: A digital device for measuring concrete strength is provided to display a measured strength value by converting the value into the digital value with a digital converter so that a user can confirm the value much easier. CONSTITUTION: A digital device for measuring concrete strength comprises a strike rod(10), a bolt(20), a resistance sensor(40), a digital converter(60), and a display(70). The strike rod hit on a concrete surface. The bolt is backwardly by a repulsive force being transmitted from the strike rod. The resistance sensor measures a distance in which the bolt is moved from an initial position to backward. The digital converter converts a measurement value of the resistance sensor into a predetermined correspondence value. The display outputs the converted value of the digital converter. |
