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光譜儀可以自動繪出光譜圖,而分光光度計通常指一次測定只能在一個波長(頻率、或波數)處進行,想要繪制光譜圖的話,必須手動不斷改變工作波
The spectrometer can automatically draw the spectrogram, and spectrophotometer usually refers to a measurement can only be carried out at one wavelength (frequency, or wave number), if you want to draw the spectrogram, you must manually change the working wave
長(頻率、或波數),分別測定后,手工繪制光譜圖.顯然這種儀器對于需要經常根據光譜圖定性分析的用戶而言是很不方便的,但價格相對于光譜儀要便宜得多,
Long (frequency or wavenumber), were measured after hand drawn spectrum. Obviously this instrument for spectrum analysis is often based on qualitative user is very convenient, but the price is much cheaper than spectrometer,
對只需定量分析的用戶就夠用了.
For quantitative analysis of the user is enough
1、光譜儀，以光電倍增管等光探測器測量譜線不同波長位置強度的裝置。其構造由一個入射狹縫，一個色散系統，一個成像系統和一個或多個出射狹縫組成。以色散元件將輻射源的電磁輻射分離出所需要的波長或波長區域，并在選定的波長上(或掃描某一波段)進行強度測定。分為單色儀和多色儀兩種。
1, spectrometer, photomultiplier tube and other optical detectors to measure the spectral line of different wavelength position strength device. The structure is composed of an incident slit, a dispersion system, an imaging system and one or more exit slits. The electromagnetic radiation of the radiation source is separated by a dispersive element to the desired wavelength or wavelength region, and the intensity is measured at the selected wavelength (or scanning a band). Divided into two kinds of monochromator and spectrometer.
2、分光光度計是將成分復雜的光，分解為光譜線的科學儀器。測量范圍一般包括波長范圍為380~780
2, spectrophotometer is the composition of complex light, into the spectral line of scientific instruments. The measurement range generally includes a wavelength range of 380~780
nm的可見光區和波長范圍為200～380
Nm and visible light wavelength range of 200 to 380
nm的紫外光區。不同的光源都有其特有的發射光譜,因此可采用不同的發光體作為儀器的光源。鎢燈的發射光譜：鎢燈光源所發出的380～780nm波長的光
Nm UV region. Different light sources have their own unique emission spectrum, so different illuminant can be used as the light source. Emission spectrum of tungsten lamp: light of 380 ~ 780nm wavelength emitted by tungsten lamp
譜光通過三棱鏡折射后，可得到由紅、橙、黃、綠、藍、靛、紫組成的連續色譜;該色譜可作為可見光分光光度計的光源
Spectrum of light through the three prism refraction can be obtained after continuous chromatography composed of red, orange, yellow, green, blue, indigo and purple; chromatography can be used as the light source of the visible light spectrophotometer
