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Çѱ¹Áö¹Ý°øÇÐȸ / v.25, no.10, 2009³â, pp.31-40
FBG¼¾¼­¸¦ ÀÌ¿ëÇÑ ÄÜ ¼±´ÜÀúÇ×·ÂÀÇ ¿Âµµ¿µÇâ º¸»ó
( Temperature Compensation on the Cone Tip Resistance by Using FBG Temperature Transducer )
±è·¡Çö;ÀÌÁ¾¼·;¾È½Åȯ;ÀÌ¿ìÁø; °í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ÇÃà.»çȸȯ°æ°øÇаú;
 
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Àü±âÀúÇ×½Ä º¯ÇüÀ²°è¸¦ ÀÌ¿ëÇÑ ÄÜ °üÀÔ½ÃÇè±â´Â ¿Âµµ º¯È­¿¡ ÀÇÇØ ¼±´ÜÀúÇ×·ÂÀÌ ´Þ¶óÁø´Ù-º» ¿¬±¸¿¡¼­´Â FBG¼¾¼­¸¦ ÀÌ¿ëÇÏ¿© Á÷°æ 0.5mmÀÇ ¿Âµµ¼¾¼­¿Í Á÷°æ 7mmÀÇ ¸¶ÀÌÅ©·ÎÄÜÀ» Á¦ÀÛÇÏ¿© ¿ÂµµÀÇ º¯È­°¡ ÄÜ ¼±´ÜÀúÇ׷¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Æò°¡Çϰí À̸¦ È¿°úÀûÀ¸·Î º¸»óÇϰíÀÚ ÇÏ¿´´Ù-±¤¼¶À¯ ¸¶ÀÌÅ©·ÎÄܰú ¿Âµµ¼¾¼­´Â ÄÜÀÇ ±¸Á¶, ¼¾¼­ ºÎÂø À§Ä¡ ¹× ±¤¼¶À¯¸¦ ÀÌ¿ëÇÑ ¿Âµµº¸»ó¹ý µîÀ» °í·ÁÇÏ¿© Á¦ÀÛÇÏ¿´´Ù-¿Âµµ¿µÇâ ½ÃÇè°á°ú, Àü±âÀúÇ×½Ä º¯ÇüÀ²°èÀÇ ÄÜ ¼±´ÜÀúÇ×·ÂÀº ¿Âµµ¿¡ ÀÇÇØ ¿µÇâÀ» ¹ÞÀ¸¸ç ¿Âµµ Â÷À̰¡ Ŭ¼ö·Ï ¿ÀÂ÷µµ Áõ°¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¹Ý¸é, FBG¼¾¼­¿¡¼­ ÃøÁ¤µÈ ÄÜ ¼±´ÜÀúÇ×·ÂÀº FBG ¿Âµµ¼¾¼­¸¦ ÀÌ¿ëÇÏ¿© È¿°úÀûÀ¸·Î ¿ÂµµÀÇ ¿µÇâÀ» º¸»óÇÒ ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ ¿Âµµ º¸»óÀ» ½Ç½ÃÇÑ Àü±âÀúÇ×½Ä º¯ÇüÀ²°èÀÇ ÄÜ ¼±´ÜÀúÇ×·ÂÀº ½Éµµ¿¡ µû¶ó ÀÏÁ¤ÇÑ ºÐÆ÷¸¦ º¸¿´À¸¸ç °üÀÔ°ú µ¿½Ã¿¡ ¿ÂµµÀÇ ¿µÇâÀÌ º¸»óµÇ´Â FBG¼¾¼­ÀÇ °á°ú¿Íµµ ¸Å¿ì À¯»çÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. º» ¿¬±¸¸¦ ÅëÇØ ¿Âµµ º¯È­°¡ ¼±´ÜÀúÇ׷¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Æò°¡ÇÏ¿´À¸¸ç, FBG¼¾¼­¸¦ ÀÌ¿ëÇÏ¿© È¿°úÀûÀ¸·Î ¿Âµµ ¿µÇâÀ» º¸»óÇÒ ¼ö ÀÖÀ½À» È®ÀÎÇÏ¿´´Ù.
As the measurement of strain-gage type cone penetrometer is influenced by the temperature change during penetration, the temperature is a factor producing an error of the cone tip resistance. In this study, the 0.5 mm diameter temperature transducer and 7 mm diameter micro cone penetrometer are manufactured by using FBG sensors to evaluate the effect of temperature on the cone tip resistance. Design concepts include the cone configuration, sensor installation and the temperature compensation process. The test shows that the tip resistance measured by strain gauge is affected by the temperature change. The error of the tip resistance increases with an increase in temperature change, while the temperature effect on the tip resistance of FBG cone is effectively compensated by using FBG temperature transducer. Temperature compensated tip resistance of the strain gauge cone shows the good matched profile with FBG cone which performs real-time temperature compensation during penetration. This study demonstrates that the temperature compensation by using FBG sensor is an effective method to produce the more reliable cone tip resistance.
 
Ű¿öµå
FBG sensor;Initial zero reading;Micro cone;Temperature compensation;Temperature effect;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.25, no.10, 2009³â, pp.31-40
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200919061727100)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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