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Çѱ¹¼öÀÚ¿øÇÐȸ / v.44, no.9, 2011³â, pp.731-740
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ÆÞ½º¹Ýº¹Á֯ļö ±â¹ýÀ» ÀÌ¿ëÇÑ ÃÊÀ½ÆÄ À¯¼Ó ÇÁ·ÎÆÄÀÏ·¯ °³¹ß
( Development of an Acoustic Velocity Profiler by Using Pulse Repetition Frequency Technique ) |
ÀÌÂùÁÖ;±èµ¿±¸;ÀÌÀçÈÆ;±è¿ø; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ÇÏÃµÇØ¾ÈÇ׸¸¿¬±¸½Ç;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ÇÏÃµÇØ¾ÈÇ׸¸¿¬±¸½Ç;¾ÆÀÌ¿¡½ºÅ×Å©³î·ÎÁö(ÁÖ) ¼¾¼½Ã½ºÅÛ¿¬±¸¼Ò;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ÇÏÃµÇØ¾ÈÇ׸¸¿¬±¸½Ç;
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º» ¿¬±¸¿¡¼´Â ±¹³» ±â¼ú·Î °³¼ö·Î È帧 ÃøÁ¤¿¡ Ȱ¿ëÇÒ ¼ö ÀÖ´Â ÃÊÀ½ÆÄ À¯¼Ó ÇÁ·ÎÆÄÀÏ·¯¸¦ °³¹ßÇÏ¿´´Ù. ÀÌ À¯¼Ó ÇÁ·ÎÆÄÀÏ·¯´Â ÃÊÀ½ÆÄÀÇ µµÇ÷¯ È¿°ú·Î À¯¼ÓÀ» ÃøÁ¤ÇÏ´Â ¿ø¸®¿¡ ±â¹ÝÀ» µÎ°í ÀÖÀ¸¸ç, µµÇ÷¯ Á֯ļö´Â ÆÞ½º¹Ýº¹Á֯ļö(Pulse Repetition Frequency) ±â¹ý¿¡ ÀÇÇØ »êÁ¤µÈ´Ù. °³¹ßµÈ À¯¼Ó ÇÁ·ÎÆÄÀÏ·¯ÀÇ ¼º´ÉÀ» °ËÁõÇϱâ À§ÇØ ½Ç³» ½ÇÇè ¹× ÇöÀå Å×½ºÆ®¸¦ ¼öÇàÇÏ¿´´Ù. ½ÇÇè °á°ú °³¹ßµÈ À¯¼Ó ÇÁ·ÎÆÄÀÏ·¯´Â ¹Ù´Ú¿¡¼ºÎÅÍ ¾à 0.1 cm ÀÌ»óÀÇ ¼ö½É¿¡¼´Â Á¤»óÀûÀÎ À¯¼Ó ºÐÆ÷¸¦ ÃøÁ¤Çϸç, »ó¿ë À¯¼Ó¼¾¼ µî°ú ºñ±³ÇÏ¿© À¯»çÇÑ ÃøÁ¤ ¼º´ÉÀ» °¡Áø °ÍÀ¸·Î È®ÀεǾú´Ù. |
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An acoustic velocity profiler is developed, which is able to be used for open-channel flow measurement. It measures flow velocity based Doppler effect on acoustic signals, which is estimated by using pulse repetition frequency technique. Laboratory and field tests were made to verify velocity measuring performance of the developed device. It is confirmed that the acoustic velocity profiler can normally measure vertical velocity profile in the range above 0.1 m from the bottom and has equivalent performance to commercial acoustic velocity measuring devices. |
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ÃÊÀ½ÆÄ À¯¼Ó ÇÁ·ÎÆÄÀÏ·¯;ÆÞ½º¹Ýº¹Á֯ļö;À¯¼Ó;ÃøÁ¤;½ÇÇè;acoustic velocity profiler;pulse repetition frequency (PRF);velocity;measurement;test; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.44, no.9, 2011³â, pp.731-740
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201129349656509)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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