Philips SCF334/61 Manual page 128

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‫ﺍﻟﻌﺮﺑﻴﺔ‬
128
‫008 ﻣﻴﺠﺎ ﻫﺮﺗﺰ ﺇﻟﻰ 5،2 ﺟﻴﺠﺎ ﻫﺮﺗﺰ‬
d=2،33 √P
(d( ‫ﺑﺎﻟﻨﺴﺒﺔ ﻷﺟﻬﺰﺓ اﻹﺭﺳﺎﻝ اﻟﻤﺼﻨﻔﺔ ﺿﻤﻦ ﻗﺪﺭﺓ اﻟﺨﺮﺝ ﻗﺼﻮﻯ ﻏﻴﺮ اﻟﻤﺬﻛﻮﺭﺓ ﺃﻋﻼﻩ، ﻳﻤﻜﻦ ﺗﻘﺪﻳﺮ ﻣﺴﺎﻓﺔ اﻟﻔﺼﻞ اﻟﻤﻮﺻﻰ ﺑﻬﺎ واﻟﺘﻲ ﻳﺸﺎﺭ ﺇﻟﻴﻬﺎ ﺑﺎﻟﺮﻣﺰ‬
(W( ‫) ﺇﻟﻰ ﻗﺪﺭﺓ اﻟﺨﺮﺝ اﻟﻘﺼﻮﻯ اﻟﻤﻘﻨﻨﺔ ﻟﺠﻬﺎﺯ اﻹﺭﺳﺎﻝ ﺑﺎﻟﻮاﻁ‬P( ‫) ﺑﺎﺳﺘﻌﻤﺎﻝ اﻟﻤﻌﺎﺩﻟﺔ اﻟﻤﻨﻄﺒﻘﺔ ﻋﻠﻰ ﺗﺮﺩﺩ ﺟﻬﺎﺯ اﻹﺭﺳﺎﻝ ﺣﻴﺚ ﻳﺸﻴﺮ اﻟﺮﻣﺰ‬m( ‫ﺑﺎﻷﻣﺘﺎﺭ‬
‫ﻣﻼﺣﻈﺔ ﺭﻗﻢ 2: ﻗﺪ ﻻ ﺗﻨﻄﺒﻖ ﻫﺬﻩ اﻹﺭﺷﺎﺩاﺕ ﻓﻲ ﺟﻤﻴﻊ اﻟﺤﺎﻻﺕ. ﻳﺘﺄﺛﺮ اﻻﻧﺘﺸﺎﺭ اﻟﻜﻬﺮوﻣﻐﻨﺎﻃﻴﺴﻲ ﺑﺎﻻﻣﺘﺼﺎﺹ واﻻﻧﻌﻜﺎﺱ ﻣﻦ اﻟﻬﻴﺎﻛﻞ واﻷﺷﻴﺎﺀ‬
‫اﺣﺘﻔﻈﻲ ﺑﻤﻀﺨﺔ اﻟﺜﺪﻱ ﺑﻌﻴ ﺪ ﹰا ﻋﻦ ﺃﺷﻌﺔ اﻟﺸﻤﺲ اﻟﻤﺒﺎﺷﺮﺓ ﻷﻥ اﻟﺘﻌ ﺮ ﹼﺽ اﻟﻤﻄﻮﻝ ﻗﺪ ﻳﺴﺒﺐ ﺗﻐﻴﹽﺮ اﻟﻠﻮﻥ. ﻗﻮﻣﻲ ﺑﺘﺨﺰﻳﻦ ﻣﻀﺨﺔ اﻟﺜﺪﻱ وﻣﻠﺤﻘﺎﺗﻬﺎ ﻓﻲ‬
‫ﺇﺫا ﺗﻢ ﺗﺨﺰﻳﻦ اﻟﺠﻬﺎﺯ ﻓﻲ ﺑﻴﺌﺔ ﺳﺎﺧﻨﺔ ﺃو ﺑﺎﺭﺩﺓ، ﻓﻀﻌﻴﻪ ﻓﻲ ﺑﻴﺌﺔ اﺳﺘﺨﺪاﻡ ﺗﺴﻤﺢ ﻟﻪ ﺑﺎﻟﻮﺻﻮﻝ ﺇﻟﻰ ﺩﺭﺟﺔ ﺣﺮاﺭﺓ ﻣﻨﺎﺳﺒﺔ ﻟﻈﺮوﻑ اﻻﺳﺘﺨﺪاﻡ (14 ﺩﺭﺟﺔ‬
‫14 ﺩﺭﺟﺔ ﻓﻬﺮﻧﻬﺎﻳﺖ (5+ ﺩﺭﺟﺎﺕ ﻣﺌﻮﻳﺔ) ﺇﻟﻰ 401 ﺩﺭﺟﺔ ﻓﻬﺮﻧﻬﺎﻳﺖ (04+ ﺩﺭﺟﺔ‬
‫31- ﺩﺭﺟﺔ ﻓﻬﺮﻧﻬﺎﻳﺖ (52- ﺩﺭﺟﺔ ﻣﺌﻮﻳﺔ) ﺇﻟﻰ 851 ﺩﺭﺟﺔ ﻓﻬﺮﻧﻬﺎﻳﺖ (07 ﺩﺭﺟﺔ‬
)m( ‫ﻣﺴﺎﻓﺔ ﺍﻟﻔﺼﻞ وﻓﻘﹱﺎ ﻟﺘﺮدد ﺟﻬﺎﺯ ﺍﻹرﺳﺎﻝ ﺑﺎﻟﻤﺘﺮ‬
‫08 ﻣﻴﺠﺎ ﻫﺮﺗﺰ ﺇﻟﻰ 008 ﻣﻴﺠﺎ ﻫﺮﺗﺰ‬
0،23
0،73
2،3
7،3
23
.‫ﻣﻼﺣﻈﺔ ﺭﻗﻢ 1: ﻋﻨﺪ ﻣﺴﺎﻓﺔ 08 ﻣﻴﺠﺎ ﻫﺮﺗﺰ و 008 ﻣﻴﺠﺎ ﻫﺮﺗﺰ، ﺗﻄﺒﻖ ﻣﺴﺎﻓﺔ اﻟﻔﺼﻞ وﻓﻘﹱﺎ ﻟﻤﺪﻯ اﻟﺘﺮﺩﺩ اﻷﻋﻠﻰ‬
)‫%51 ﺇﻟﻰ %39 (ﺑﺪوﻥ ﺗﻜﺜﻒ‬
‫ﺿﻐﻂ اﻟﻬﻮاﺀ 007 و0601 ﺑﺎﺳﻜﺎﻝ‬
)‫%51 ﺇﻟﻰ %39 (ﺑﺪوﻥ ﺗﻜﺜﻒ‬
‫051 ﻛﻴﻠﻮ ﻫﺮﺗﺰ ﺇﻟﻰ 08 ﻣﻴﺠﺎ ﻫﺮﺗﺰ‬
d=1،17 √P
‫ﺧﺎﺭﺝ ﻧﻄﺎﻗﺎﺕ اﻟﺘﺮﺩﺩ اﻟﻼﺳﻠﻜﻲ‬
d=1،17‫اﻟﺼﻨﺎﻋﻲ واﻟﻌﻠﻤﻲ واﻟﻄﺒﻲ‬
0،12
0،38
1،2
3،8
12
. ‫ﻓﻬﺮﻧﻬﺎﻳﺖ/5 ﺩﺭﺟﺎﺕ ﻣﺌﻮﻳﺔ ﺇﻟﻰ 401 ﺩﺭﺟﺔ ﻓﻬﺮﻧﻬﺎﻳﺖ/04 ﺩﺭﺟﺔ ﻣﺌﻮﻳﺔ) ﻗﺒﻞ اﺳﺘﺨﺪاﻣﻪ‬
)‫ﻣﺌﻮﻳﺔ‬
)‫ﻣﺌﻮﻳﺔ‬
‫اﻟﺤﺪ اﻷﻗﺼﻰ ﻟﻠﺨﺮﺝ اﻟﻤﻘﻨﻦ ﻟﺠﻬﺎﺯ‬
(W( ‫اﻻﺭﺳﺎﻝ ﺑﺎﻟﻮاﻁ‬
√P
0،12
0،38
1،2
3،8
12
.‫وﻓﻘﹱﺎ ﻟﺠﻬﺔ ﺗﺼﻨﻴﻊ ﺟﻬﺎﺯ اﻹﺭﺳﺎﻝ‬
‫ﺍﻻﺳﺘﺨﺪﺍﻡ وﻇﺮوﻑ ﺍﻟﺘﺨﺰﻳﻦ‬
.‫ﻣﻜﺎﻥ ﺁﻣﻦ وﻧﻈﻴﻒ وﺟﺎﻑ‬
‫ﻇﺮوﻑ ﺍﻻﺳﺘﺨﺪﺍﻡ‬
‫ﺩﺭﺟﺔ اﻟﺤﺮاﺭﺓ‬
‫اﻟﺮﻃﻮﺑﺔ اﻟﻨﺴﺒﻴﺔ‬
‫اﻟﻀﻐﻂ اﻟﺠﻮﻱ‬
‫ﻇﺮوﻑ ﺍﻟﺘﺨﺰﻳﻦ‬
‫ﺩﺭﺟﺔ اﻟﺤﺮاﺭﺓ‬
‫اﻟﺮﻃﻮﺑﺔ اﻟﻨﺴﺒﻴﺔ‬
0،01
0،1
1
10
100
.‫واﻷﺷﺨﺎﺹ‬

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