第4楼2005/04/25
實驗儀器及設備:
其主要元件如下:高溫裝置底座、高溫鏡片裝置、水冷卻系統、溫度控制系統。
高溫裝置底座:主要是使高溫系統能依穿透和反射的不同,而使 用不同的底座來裝置在原先常溫紅外光實驗裝置之樣品區。
高溫鏡片裝置:包含兩種高溫鏡片,一片為楔形鏡片,另一片為平坦的鏡片,兩片鏡片中即為sample室。
水冷卻系統:主要是將水通入高溫系統,利用水循環達到降溫的效果,使得除了sample室之外系統溫度不致太高。
溫度控制系統:控制想要的實驗溫度。
實驗過程與方法:
1.依實驗之光區選擇適當的beamspliter和detector。
2.先purge氮氣,使原先sample區乾燥,去除水氣。
3.拆中間放sample的分隔片用長螺絲起子卸下4顆螺絲,拿掉分隔片。
4.拆掉sample架,將高溫儀器箱中的底架拿出並架上,先將底鏡鎖上,需對稱鎖上,這樣才可完全鎖緊,使sample室之溫度能保持需要的溫度。
5.將水冷卻系統和高溫控制系統之兩水管接上,再將水冷卻系統開機。
. . 6.調整底座位置,找出最大能量的位置並鎖上固定,有時也可藉由底座反射鏡的調整尋找。
7.量測background,將小鐵圓柱放入。
8.量測sample,基本上每50℃掃瞄一次,做到800℃。
详细内容请看:
http://www.phy.fju.edu.tw/lab/ph304/ir.htm
第5楼2005/04/25
FTS 7000 series advanced research FT-IR spectrometers
The FTS 7000 series advanced research FT-IR spectrometers provide the highest optical throughput available in the market, without compromising sensitivity or functionality.
The Varian 7000e FT-IR represents the economical entry into this series of high performance spectrometers, offering all of the optical performance and most of the experimental capabilities of the Varian 7000 FT-IR. The Varian 7000e FT-IR instrument is easily upgradeable to an Varian 7000 FT-IR when you are ready for full step scan capabilities.
The Varian 7000 FT-IR Step-Scan spectrometer features patented Digital Signal Processing Software (DSP1™, DSP2™ and DSP3™) which offers the research scientist additional capabilities in multiple modulation spectroscopy, ideal for research in polymers, materials, biological compounds and gases.
The FTS 7000 series spectrometers can be controlled by Resolutions Pro™ software. These spectrometers can also be fitted with a wide range of accessories to provide extra capabilities.
Varian 7000 FT-IR & Varian 7000e FT-IR features:
Highest optical throughput
Spectral coverage from the far-IR to the UV
High speed kinetics scan rates
Dynamic alignment
Varian 7000 FT-IR features & capabilities:
Step scan operation
Polarization modulation experiments
Time Resolved Spectroscopy (TRS)
Photoacoustic Spectroscopy (PAS)
Dynamic Infrared Linear Dichroism (DIRLD)
Imaging
请看
http://www.varianinc.com/cgi-bin/nav?products/spectr/ftir/fts7000/index&cid=QIOOMJMFN