Objective: Record and interpret transmission spectra of transparent bodies
A digital spectrophotometer is used to measure transmission spectra. In this instrument the transmitted light collected by an optical fibre is separated into its spectral components by a reflection grating using the Czerny-Turner principle and is projected as an image onto a CCD detector via two mirrors. The transmission spectrum is generated by automatic normalisation applied to the previously recorded spectrum of the light falling on the detector.
Additionally recommended: Chlorophyll, Potassium Permanganate
![Experiment: Transmission Spectra, 8000679 [UE4020400], Colours](/imagelibrary/UE4020400/UE4020400_01_Experiment-Transmission-Spectra.jpg)
![Experiment: Transmission Spectra, 8000679 [UE4020400], Colours](/thumblibrary/UE4020400/UE4020400_01_1200_1200_Experiment-Transmission-Spectra.jpg)
![DC Power Supply 20 V, 5 A (230 V, 50/60 Hz), 1003312 [U33020-230], Power Supplies](/thumblibrary/U33020-230/U33020-230_01_140_140_DC-Power-Supply-20-V-5-A-230-V-5060-Hz.jpg)
![Set of 15 Safety Experiment Leads, 75 cm, 1002843 [U138021], Circuits](/thumblibrary/U138021/U138021_01_140_140_Set-of-15-Safety-Experiment-Leads-75-cm.jpg)
![Pair of Safety Experiment Leads, 75 cm, blue, red, 1017718 [U13816], Experiment Leads and Cables](/thumblibrary/U13816/U13816_01_140_140_Pair-of-Safety-Experiment-Leads-75-cm-blue-red.jpg)
![Set of 100 Cuvette Cells, 4 ml, 1018106 [U101601], Spectrophotometer](/thumblibrary/U101601/U101601_01_140_140_Set-of-100-Cuvette-Cells-4-ml.jpg)
![Set of 7 Colour Filters, 1003084 [U19530], Apertures, Diffraction Elements and Filters](/thumblibrary/U19530/U19530_01_140_140_Set-of-7-Colour-Filters.jpg)
![Digital Spectrometer LD with Absorption Chamber, 1019196 [U22031], Spectrophotometer](/thumblibrary/U22031/U22031_01_140_140_Digital-Spectrometer-LD-with-Absorption-Chamber.jpg)
![Function Generator FG 100 (230 V, 50/60 Hz), 1009957 [U8533600-230], Function Generators](/thumblibrary/U8533600-230/U8533600-230_01_140_140_Function-Generator-FG-100-230-V-5060-Hz.jpg)
![Pocket Measuring Tape, 2 m, 1002603 [U10073], Measurement of Length](/thumblibrary/U10073/U10073_01_140_140_Pocket-Measuring-Tape-2-m.jpg)
![Universal Clamp, 1002830 [U13255], Clamps](/thumblibrary/U13255/U13255_01_140_140_Universal-Clamp.jpg)
![Tripod Stand 150 mm, 1002835 [U13270], Bases](/thumblibrary/U13270/U13270_01_140_140_Tripod-Stand-150-mm.jpg)
![Set of 15 Experiment Leads, 75 cm 1 mm², 1002840 [U13800], Circuits](/thumblibrary/U13800/U13800_01_140_140_Set-of-15-Experiment-Leads-75-cm-1-mm.jpg)
![Double-Pole Double Throw Switch, 1018439 [U8495901], Circuits](/thumblibrary/U8495901/U8495901_01_140_140_Double-Pole-Double-Throw-Switch.jpg)
![Analogue Multimeter ESCOLA 30, 1013526 [U8557330], Hand-held Analog Measuring Instruments](/thumblibrary/U8557330/U8557330_01_140_140_Analogue-Multimeter-ESCOLA-30.jpg)
![Digital Oscilloscope, 2x30 MHz, 1020910 [U11834], Oscilloscopes](/thumblibrary/U11834/U11834_01_140_140_Digital-Oscilloscope-2x30-MHz.jpg)
![Stainless Steel Rod 250 mm, 1002933 [U15001], Rods](/thumblibrary/U15001/U15001_01_140_140_Stainless-Steel-Rod-250-mm.jpg)
![Stainless Steel Rod 1000 mm, 1002936 [U15004], Rods](/thumblibrary/U15004/U15004_01_140_140_Stainless-Steel-Rod-1000-mm.jpg)
![Plug-in Board for Components, 1012902 [U33250], Plug-In Component System](/thumblibrary/U33250/U33250_01_140_140_Plug-in-Board-for-Components.jpg)
![Spectrum Tube Power Supply (230V, 50/60 Hz), 1000684 [U418001-230], Spectrum Tubes and Spectrum Lamps](/thumblibrary/U418001-230/U418001-230_01_140_140_Spectrum-Tube-Power-Supply-230V-5060-Hz.jpg)
![Vibration generator -
for investigating oscillations and resonances, 1000701 [U56001], Oscillations](/thumblibrary/U56001/U56001_01_140_140_Vibration-generator-for-investigating-oscillations-and-resonances.jpg)