An innovative orifice gas flow measurement device provides an accurate flow measurement concurrent with the orifice diameter.
The parameters relevant to selecting an aperture suitable for use in the optical transfer assembly of a high power laser are aperture substrate material, laser power and energy and time.
Many variables enter into the calculations of fluid flow through orifices. These variables influence the flow rates of gases differently than flow rates of liquids. The flow rate …
The wafer production process used in the semi conductor industry is highly dependent upon controlled flows of process gases. Mass flow controllers (MFC’s) are currently used to assist the monitoring of the flow of gases such as hydrogen. helium. nitrogen. argon, and oxygen. When either very large or very low flow rates are desired, inaccurate rates may be experienced.
The parameters relevant to selecting a material suitable for use as an aperture substrate in the optical transfer assembly of a high power laser are melting temperature, thermal conductivity, and surface reflectivity.