Measuring device for measuring the crack width of long range structures

The present invention relates to an apparatus to objectively and conveniently measure a width of a crack when the crack is generated at a long distance or in a place where an inspector cannot easily approach and, more specifically, relates to an apparatus to measure a width of a crack capable of sim...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	LEE, CHAE GUE
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS ASSEMBLY OF BRIDGES CINEMATOGRAPHY CONSTRUCTION OF BRIDGES CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES ELECTROGRAPHY FIXED CONSTRUCTIONS HOLOGRAPHY MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR OR VIADUCTS PHOTOGRAPHY PHYSICS TARIFF METERING APPARATUS TESTING
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