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光譜儀可以自動(dòng)繪出光譜圖,而分光光度計(jì)通常指一次測(cè)定只能在一個(gè)波長(zhǎng)(頻率、或波數(shù))處進(jìn)行,想要繪制光譜圖的話,必須手動(dòng)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(zhǎng)(頻率、或波數(shù)),分別測(cè)定后,手工繪制光譜圖.顯然這種儀器對(duì)于需要經(jīng)常根據(jù)光譜圖定性分析的用戶而言是很不方便的,但價(jià)格相對(duì)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(duì)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(cè)器測(cè)量譜線不同波長(zhǎng)位置強(qiáng)度的裝置。其構(gòu)造由一個(gè)入射狹縫，一個(gè)色散系統(tǒng)，一個(gè)成像系統(tǒng)和一個(gè)或多個(gè)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(zhǎng)或波長(zhǎng)區(qū)域，并在選定的波長(zhǎng)上(或掃描某一波段)進(jìn)行強(qiáng)度測(cè)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(jì)是將成分復(fù)雜的光，分解為光譜線的科學(xué)儀器。測(cè)量范圍一般包括波長(zhǎng)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(qū)和波長(zhǎng)范圍為200～380
Nm and visible light wavelength range of 200 to 380
nm的紫外光區(qū)。不同的光源都有其特有的發(fā)射光譜,因此可采用不同的發(fā)光體作為儀器的光源。鎢燈的發(fā)射光譜：鎢燈光源所發(fā)出的380～780nm波長(zhǎng)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(guò)三棱鏡折射后，可得到由紅、橙、黃、綠、藍(lán)、靛、紫組成的連續(xù)色譜;該色譜可作為可見光分光光度計(jì)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
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