Optical Spectroscopy Of Gas Lab Report

1360 Words 6 Pages
This lab module covers the subjects of optical spectroscopy of gas discharges and bond stiffness of materials. Optical spectroscopy can be observed using different types of equipment, such as, a spectrometer, a light collecting fiber, and tubes of certain types of gas (He, H2O, H2 and O2). The data collected displays the peak wavelengths for each of the gases, which can be used to determine the energy released when the electrons change energy levels. Overall, it was interesting to see how certain wavelengths of light relate to different types of gases.
On the other hand, bond stiffness, the second subject, can be studied with the Instron Merlin, which is used for the 3-point bend test in different types of materials (Glass, Aluminum, Steel, and Tungsten). This test produces necessary values for a flexural modulus(Ef) for each material, which, when divided by bonds/area(1/cm2) is used to compare bond strengths between materials.

Each of these lab exercises has a direct purpose.
…show more content…
Next, we correctly placed the gas tube in the discharge power lamp, which sent voltage through the tube. From there, we used the computer software and adjusted the exposure (relevant to the light collecting fiber) and collected the data which shows the wavelength of light produced by the release of photons of each gas we observed (H2 and O2).

Using Flexural Modulus to Compare Bond Strengths The procedure to test the strength of a bond for certain types of materials, we used the Instron Merlin to apply a 3-point bend test. We selected our materials (Glass, Tungsten, Aluminum and Steel) to be tested one at a time. We took the rod of choice and appropriately placed it in the mechanical apparatus. We then applied more force using the machine and used the computer software to record our

Related Documents