折射儀:
WYA-2W,WYA,2WAJ,WYA-2S,WYA-1S,WSL-2,WGG-60,MASTER-H100,MASTER-10M, MASTER-20M,MASTER-20T,HSR-500,R-5000,N-3000E,S-10E,S-28E,S/MILL-E,DR6000, DR6000-T,DR6100,DR6100-T,DR201-95,DR201+95OE,DR301-95,AR2008,AR4,AR4D,HR10,HR181,HRKL32,HRN20,HRN32,HRT32,HRN62,HRT62,HRN82,HR92,HRN30NEW,HR900,HR901,HR27-100,HRS16,HR146,HRM18,HRMT18,HRO32,HROT32,HRKFZ1,HR25-800,WAY-A,WYV-V, WYL-4, WYL-3, WGT-B,
儀器結(jié)構(gòu)
折射儀主要由高折射率棱鏡(鉛玻璃或合成立方氧化鋯)、棱鏡反射鏡、透鏡、標(biāo)尺(內(nèi)標(biāo)尺或外標(biāo)尺)和目鏡等組成。
工作原理
折射儀的工作原理是建立在全內(nèi)反射的基礎(chǔ)上。該儀器是測量寶石的臨界角,并將讀數(shù)直接轉(zhuǎn)換成折射率值。
產(chǎn)生全反射的條件:
1.折射儀的高折射率棱鏡必須為光密介質(zhì)
2.待測寶石為光疏介質(zhì)
3.接觸液使棱鏡與待測寶石之間形成良好的光學(xué)接觸
操作要
1. 接通電源、打開儀器
2. 用酒精清洗寶石和棱鏡
3. 在折射儀棱鏡上點(diǎn)一滴接觸液(直徑約2mm為宜),使用鈉光照明,可見油的陰影邊界
4. 寶石大的臺面放入棱鏡上,浸油使寶石和棱鏡之間形成良好的光學(xué)接觸
5. 眼睛靠近目鏡可觀察陰影區(qū)和明亮區(qū)并讀數(shù),讀數(shù)保留小數(shù)點(diǎn)第三位
6. 按順序轉(zhuǎn)動寶石360°,經(jīng)驗豐富者可轉(zhuǎn)動寶石0°、45°、90°進(jìn)行觀察和讀數(shù)
7. 測試完畢,將寶石輕推至金屬臺上,取下寶石
8. 清洗寶石和棱鏡
主要用途
1.鑒定寶石,可測定RI1.35-1.81之間寶石的折射率值
2.可測定寶石的雙折射率(DR)
3.確定寶石的軸性,如一軸晶、二軸晶和各向同性(等軸晶系、非晶質(zhì))
4.確定寶石的光性符號,如各向異性寶石的正光性和負(fù)光性
TPS2PWR1, TPS2000 LSKG-2 TPS2PBND ,TP2000 VGT-1620H IR1000-01 IR1010-01 IR1020-01 IR2000-02 E3K70-5DN1 E3K70-5DN1 IR2010-02 E3K70-5DP3 IR2020-02 E3K70-5DP1 AL3000-02 E3K70-5DN3 E370-5DN2 AL3000-03 E3K80-DS50N2 E3K80-DS50N1 AL4000-03 E3K80-DS50N3 AL4000-04 E3K80-DS50P1 E3K80-DS50P2 AL4000-06 E3K80-DS50P3 E3K55-DS30P1 E3K55-DS30P2 E3K55-DS30P3 E3K55-R4N1 E3K55-R4N2 E3K55-R4N3 E3K55-R4P1 TDS1012B-SC ESK55-R4P3 E3JK55-5DN1 E3JK55-5DN2 E3JK55-5DN3 E3JK55-5DP1 E3JM-R4N1 E3JK-5DM1 E3JK55-5DP2 TDS1002B-SC E3JK55-5DP3 AL5000-06 AL5000-10 AW2000-02D AW3000-02D AW3000-03D AW4000-03D AW4000-04D AW4000-06D E3K70-DS50N2 E3K70-DS50P1 E3JM-DS70N2 E3JM-DS70P1 E3S-5DN3 E3S-5DN3 E3S-5DN3 AW5000-10D E3S-5DP1 AF2000-02D E3S-R2N3 AF3000-02D AF3000-03D AF4000-03D AF4000-04D E3JM-DS70M2 AF4000-06D E3S-R2P3 AF5000-06D 3JM-DS70P2 E3JM-DS70N1 AF5000-10D TDS2004B E3S-R2P2 AC2000-02D E3S-5DN2 E3JK-5DM2 Q23XD-2L E3S-R2N2 TDS1012B Q22XD-2L E3S-R2P1 DNS-606XMM E3S-5DP2 DNS-606XM E3S-5DP3 TDS1002B E3H-R2N1 DNS-606X E3H-DS20N3 DNS-306M E3H-DS20N3 E3H-DS20P1 SNSS-130X YB-A-A4 SNSS-120X TDS1001B E3-D4ZA SNSS-110X SNSS-106X E3-D4ZS AFG3252 E3-D4ZB D-A54 YB-A-B4 YB-A-S4 D-Z73 E3-D4ZC AFG3251 YC-D-A5 YC-D-B5 DPO3VID YC-D-S5 YC-D-C5 DPO3PWRBND YC-D-H5 YC-D-G5 YC-D-E5 MSO3012 YC-A-A5 YC-A-B5 D-C73 MSO3014 YC-A-S5 YC-D-A8 D-A73 MSO3032 E3-D4ZG YB-D-G2 CS1-S YB-D-S2 MSO3034 E3-D2ZB |