Page 9 - eDD111_土木與建築群測量實習升學寶典

Chapter 1 x಻ඎ
1-2c಻ඎʘਿ͉ఊЗe಻ඎਿ๟ʿࢭᅺӻ୕

1-2 測量之基本單位、測量基準及座標系統

重點掃描

一 測量之基本單位

1. 長度單位j

Ȅ ʮՓj1 ʮԢ = 1000 ʮˉi1 ʮˉ = 100 ʮʱi1 ʮʱ = 10 ʮ᩶f
ȅ ̨Փj1 ̨ɩ = 10 ̨ˉi1 ̨ˉ = 0.303 ʮˉf

Ȇ ߵՓj1 ߵ࡮ = 1760 ᇁi1 ᇁ = 3 ߵъi1 ߵъ = 12 ߵΡf
ȇ ʮՓeߵՓʝ౬j1 ߵ࡮ = 1.609 ʮԢi1 ߵΡ = 2.54 ʮʱf

2. 面積單位j
Ȅ ʮՓj1 ʮ௠ = 100 लi1 ʮल = 100 ̻˙ʮˉf

ȅ ̨Փj1 ջ = 6 ̨ˉ Ò6 ̨ˉ = 36 ̻˙̨ˉd1 ͠ = 10 ʱf
Ȇ ʮՓęՓʝ౬j 1 ̻˙ʮˉ = 0.3025 ջi1 ջ = 3.3058 ̻˙ʮˉi

1 ͠ = 0.9699 ʮ௠ = 2934 ջf

3. 角度單位j

Ȅ 360° Փ€ɓࡈ෥ٙ෥մ޴຅׵ 360°j1° = 60'i1' = 60"f

ȅ ϵЗՓ€ɓࡈ෥ٙ෥մ޴຅׵ 400gj1g = 100ci1c = 100ccf
Ȇ 360°e400g ၾ᲌ܓʘʝ౬j

2π = 360° = 400gi
̒ࢰԉ່֛j຅ɓ෥ֹڗܓ€aഃ׵෥ʘ̒ࢰ€RࣛdϤ෥ֹה࿁Ꮠʘ෥ː

ԉ၈މɓ̒ࢰԉd˸ ρ ڌͪʘdνྡ 1-1 הͪf
ֹڗ R ρ
c = = d
Ό෥մڗ 2πR 360°
180°
cρ = π = 57.295779°

cપၑɪό̙੻ 圖 1-1 半徑角

cρ =206265
ֹڗ
෥ːԉٙ᲌ܓމֹڗၾ̒ࢰٙˢ࠽d᲌ܓඎ = 。
̒ࢰ

ί಻ඎࠇၑʕdމӋ˙کd࿁׵ʃԉܓʘָ͍€͍ʲՌᅰ࠽d˸̒ࢰԉಁ˾f

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