MEASURING METHOD OF UNDERWATER HYDROPHONE ARRAY LOCATION USING LINEAR STAGE

摘要

The present invention relates to a method for measuring an underwater hydrophone arrangement location using linear stages. The method includes the steps of: moving an X-axis linear stage in an X-axis direction and moving an Y-axis linear stage in an Y-axis direction on a linear stage fixing plate; moving a Z-axis linear stage having a laser distance measurer in the X-axis and Y-axis directions in connection with movements of the X-axis linear stage and the Y-axis linear stage in a state of being coupled with the X-axis linear stage and the Y-axis linear stage; and irradiating, by the laser distance measurer, a laser beam onto the underwater hydrophone located at the vertically lower part thereof, moving the Z-axis linear stage in a Z-axis direction to adjust a focus by limiting a spot size of the laser beam to a certain diameter or less, and measuring a Z-axis direction location of the underwater hydrophone therethrough. According to the present invention, the method is capable of accurately measuring a location if the location of an individual underwater hydrophone is out of an intended design location in an underwater hydrophone arrangement location, and improving reliability of noise measurement results according to an underwater hydrophone arrangement signal processing method by correcting the location of the underwater hydrophone.