MEASURING DEVICE AND MEHTOD FOR MEASURING TRANSMISSION TIME DIFFERENCE OF SIGNAL THEREOF

摘要

The present invention relates to a measuring device and a method for measuring signal transmission time difference thereof. According to the present invention, the method for measuring signal transmission time difference includes the steps of: when a first optical line is inserted into a first passage and a second optical line is inserted into a second passage, receiving a first signal received through the first passage and the second passage; when the second optical line is inserted into the first passage and the first optical line is inserted into the second passage, receiving a second signal received through the first passage and the second passage; and measuring screw between the first optical line and the second optical line on the basis of the first signal and the second signal.