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  Á¦¸ñ : ±ØÀúÁÖÆÄ(пî¸ñ²÷î)
  ÀÛ¼ºÀÚ : ¿î¿µÀÚ ÀÛ¼ºÀÏ:2009-04-23[10:55]¤ÓÁ¶È¸:1915¤ÓÃßõ:295


1.±ØÀúÁÖÆÄ(пî¸ñ²÷î)
ultra low frequency (ULF)

Á֯ļö ½ºÆåÆ®·³¿¡¼­ 3 kHz ÀÌÇÏÀÇ ³·Àº Á֯ļö ´ë¿ª.
¢Ñ radio spectrum : ¹«¼± ½ºÆåÆ®·³, electromagnetic spectrum : ÀüÀÚÆÄ ½ºÆåÆ®·³
Radio frequency portion of the electromagnetic spectrum lower than 3kHz. IEEE Std 100-1996

2.±ØÃÊ´ÜÆÄ(пõ±Ó­÷î)
ultra-high frequency (UHF)

300 MHz ¿¡¼­ 3 GHz ±îÁöÀÇ Á֯ļö ´ë¿ª.
¢Ñ radio spectrum : ¹«¼± ½ºÆåÆ®·³, electromagnetic spectrum : ÀüÀÚÆÄ ½ºÆåÆ®·³
300 MHz to 3 GHz. IEEE Std 100-1996

3.Àڿܼ±(í¹èâàÊ)
ultraviolet (uv)

°¡Àå ±ä ÆÄÀåÀÌ °¡½Ã±¤ ½ºÆåÆ®·³ ¹Ù·Î ¾Æ·¡¿¡ ÀÖ´Â ÀüÀÚÆÄ ½ºÆåÆ®·³ÀÇ ÇÑ ºÎºÐÀ¸·Î, ¾à 4 nm¿¡¼­ ¾à 400 nm ±îÁöÀÇ ¹üÀ§ÀÌ´Ù. ÁÖ : ¾î¶² ±â°ü¿¡¼­´Â Àڿܼ±ÀÇ ¾Æ·¡ÂÊ ÇѰ踦 1 nm ¿Í 40 nm »çÀÌÀÇ °ªÀ¸·Î µÎ°í ÀÖ´Ù. 1 nm ´Â x-ray ÆÄÀåÀÇ »óÇÑÀ̸ç, 400 nm ´Â °¡½Ã±¤ ÆÄÀåÀÇ ÇÏÇÑÀ¸·Î Áï, °¡Àå ³ôÀº °¡½Ã±¤ Á֯ļö°¡ º¸¶ó»öÀÌ´Ù.
The portion of the electromagnetic spectrum in which the longest wavelength is just below the visible spectrum, extending from approximately 4 nm to approximately 400 nm. Note : Some authorities place the lower limit of uv at values between 1 and 40 nm, 1 nm being the upper wavelength limit of x-rays. The 400-nm limit is the lowest visible wavelength, i.e., the highest visible frequency, violet.
http://www.its.bldrdoc.gov/fs-1037/


4.ºÒÈ®Á¤¼º(Üôü¬ïÒàõ)
uncertainty

1. °üÃøÇϰųª °è»êÇÑ °ªÀÌ Âü°ª¿¡¼­ ¹þ¾î³­ ÃßÁ¤Ä¡. ÁÖ: º¸Åë Æò±ÕÀÇ ÆíÂ÷, È®·ü ¿ÀÂ÷, Ç¥ÁØ ÆíÂ÷ µîÀ¸·Î Ç¥ÇöµÈ´Ù. 2. ÃøÁ¤ ¹æ¹ýÀÇ ºÎÀûÇÕ¿¡ ±âÀÎÇÏ´Â ·£´ý ¿ÀÂ÷¸¦ ÇÔ²², °èÅë¿ÀÂ÷¿¡¼­ ÁÖ¾îÁø Çã¿ë°ª.
1, The estimated amount by which the observed or calculated value of a quantity may depart from the true value. Note: The uncertainty is often expressed as the average deviation, the probable error, or the standard deviation. 2. The assigned allowance for the systematic error, together with the random error attributed to the imprecision of the measurement process. IEEE Std 100-1996


5.ºñ°ü¸® ȯ°æ(ުη×â ü»ÌÑ)
uncontrolled environment

ÀüÀ򮀡¡ ³ëÃâµÇ´Â °ÍÀ» ¾ËÁö ¸øÇϰí À̸¦ °ü¸®ÇÏÁö ¸øÇÏ´Â ÀÏ¹Ý °³°³Àε鿡°ÔÀÇ ³ëÃâ ȯ°æÀ» ¸»ÇÑ´Ù. ³ëÃâ·¹º§ÀÌ ±âÁذªÀ» ÃʰúÇÒ ¼ö ÀÖ´Ù°í ±â´ëµÇÁö ¾Ê´Â °ÅÁÖÁö¿ªÀ̳ª ÀÛ¾÷Àå¿¡¼­ ³ëÃâÀÌ ¹ß»ýÇÒ ¼ö ÀÖ´Ù.
Uncontrolled environments are locations where there is the exposure of individuals who have no knowledge or control of their exposure. The exposures may occur in living quarters or workplaces where there are no expectations that the exposure levels may exceed the guideline.
IEEE Std. C95.1 & IEEE/ANSI C.95.3-1991

6.±ÕÀϸé(гìéØü)
uniform area

º¹»ç³»¼º ½ÃÇè ½Ã¿¡ ±ÔÁ¤µÈ Àü±âÀå ±ÕÀϵµ¸¦ ¸¸Á·ÇÏ´Â ¹üÀ§¿¡ ÀÖ´Â ¸éÀû.

7.±ÕÀÏÀå(гìéíÞ)
uniform field

½Ã°£ÀûÀ¸·Î ÀÓÀÇ ¼ø°£¿¡, ±×¸®°í ÁöÁ¤µÈ Áö¿ª³»ÀÇ ¸ðµç Á¡¿¡¼­ ÁøÆø°ú ¹æÇâÀÌ ±ÕÀÏÇÑ ÀüÀÚ±âÀå.
¢Ñ field : ÀüÀÚ±âÀå
A field whose magnitude and direction are uniform at each instant in time at all points within a defined region. IEEE Std 100-1996

8.±ÕÀÏ Æò¸éÆÄ(гìé øÁØü÷î)
uniform plane wave

À§»ó°ú Å©±â°¡ ÀÏÁ¤ÇÑ Æò¸éµéÀÌ ÆòÇàÇÑ Æò¸éÆÄ.
ꄉ homogeneous plane wave : ±ÕÀÏ Æò¸éÆÄ
¢Ñ plane wave : Æò¸éÆÄ
A plane wave in which the planes of constant phase and amplitude are parallel. IEEE Std. 211-1990

9.Àü±âÀå ±ÕÀϵµ(ï³Ñ¨íÞ Ð³ìéÓø)
uniformity (of field)

º¹»ç ³»¼º ½ÃÇèÀ» ÇÒ ¶§ Àΰ¡µÇ´Â Àü±âÀåÀÌ ÇǽÃÇè¿¡ ¾î´À Á¤µµ ±ÕÀÏÇÏ°Ô ºÐÆ÷Çϴ°¡¸¦ Æò°¡ÇÏ´Â ±âÁØ. IEC 61000-4-3 ±Ô°Ý¿¡´Â 0.8 m ³ôÀÌÀÇ 1.5 m ¡¿ 1.5 m Æò¸é¿¡¼­ 0.5 m °£°ÝÀ¸·Î ÃøÁ¤ÇÏ´Â 16°³ ÃøÁ¤Á¡ Áß¿¡¼­ 75 % ³»ÀÇ ¹üÀ§(12°³ ÁöÁ¡ ÀÌ»ó)¿¡¼­ ÃøÁ¤ÇÑ Àü±âÀåÀÌ 0¢¦6 dBÀÇ ¹üÀ§ ³»¿¡ ÀÖÀ» ¶§ Àΰ¡µÇ´Â Àü±âÀåÀÌ ±ÕÀÏÇÏ´Ù°í ÆÇ´ÜÇÑ´Ù.



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