棱鏡攝譜和光譜分析

棱鏡攝譜和光譜分 89λ1、λ2、λx處的讀數(shù)。λ1、λ2很靠近時，λ2-λ1l2-l1近似成線性關(guān)系，有x12 其中al2l1axlxl1()

1L0L0中心等高。1）重新進(jìn)行細(xì)調(diào)。K，觀察光譜的移動，最好將KL0和狹縫之間，點(diǎn)亮氦光譜管，輕移光譜管，使。開底片匣上的大遮板再次檢查光路無誤后用哈光闌中孔對氦進(jìn)行拍攝打開小遮板，約80-100s，后關(guān)閉小遮板。。遮板控制，約5s。20⑷用讀數(shù)顯微鏡確定待測氦譜λx及相鄰的左右兩條譜線λ1及λ2的位置，在譜板上找出λ1及λ2的波長對應(yīng)數(shù)值。數(shù)據(jù)處理：1.調(diào)Kθ哈光 —二三四五六a518.24917.8960.353mm,a618.87318.3960.477mmia16i6

6axlxl1ax113.97913.7090.270mm，ax214.62214.3580.264mmax315.44315.2550.188mm，ax416.32416.1590.165mmax518.11517.8960.219mm，ax618.60718.3960.211mma0.2700.2640.1880.1650.2190.2110.220mm ()

4021.850(4030.4924021.850)0.2204026.334 1

66 6(a

0.072mm, a

0.029mmn6千分尺 0.004mm,cn6

1.3310mm 儀P0.95

Ua

095095 )2(kp(2.570.029)26 6(aan6x

0.075mm

P0.95

0.041mm,uA(a)a

0.017mm095A(a095A(ax )2(kpB(ax(2.570.017)2

U由()x可得

ax

a 1

ax

aaxaaxa

1.197

4026.3341.197

P —二三四五六a516.46816.2430.225mm,a617.33517.1300.205mmia16i6

6ax112.91512.7410.174mm，ax213.42913.3010.128mmax314.76714.5080.259mm，ax415.27115.1670.104mmax516.36416.2430.121mm，ax617.23817.1300.108mma0.1740.1280.2590.1040.1210.1080.149mm ()

4466.554(4476.0224466.554)0.1494471.918 1

66 6(a

0.075mm, a

n6n6

千分尺儀0.004mmc3,uB(a)P0.95

3

mmUa

095095 )2(kp(2.570.031)26 6(aan6x

0.080mm

P0.95

0.059mm,uA(a)a

Uax

095A(ax095A(ax )2(kpB(ax(2.570.024)2

U

0.062mm由()x可得

ax