The device, the application and method of manufacturing a regulator of very low gas flow speed of the sonic discharge for the measurements of adsorption and desorption gaseous

摘要

The present invention relates to devices, the applications and the processes for the manufacture of a regulator capable of providing very low flow rate of sonic flow for the measurements of adsorption and desorption. / p & & p & the regulation device according to the invention comprises a tube 1 of a ductile metal, a small part of its length is crushed so that the internal wall of said tube is in contact therewith - same, which tube is mounted on a means 9 for connection to ensure sealing around the - latter and its mounting in any apparatus for measuring the adsorption desorption gas, such a way that it ensures the continuous supply of a very low gas flow between 0,025 and 25 mm * * 3 / sec the maximum speed of the sonic flow in spite of a variable pressure.