Measuring device for measuring the fineness and maturity of cotton fibers.

摘要

The present invention relates to a measuring device (600) for measuring the fineness and maturity of cotton fibers, this measuring device (600) comprises a measuring chamber (CM) in which a sample of fibers of fibers can be inserted. cotton, the measuring chamber (CM) comprises a first base and a second base which are mutually opposite and which can be crossed by a flow of air entering the measuring chamber (CM) through the first base and exiting from the measuring chamber ( CM) through the second base, a supply duct which has an inlet end that can be associated with a source of an air flow and an outlet end associated with the first base of the measuring chamber, a flow regulator (611) arranged along the supply conduit (609) between its inlet and outlet ends, a first pressure sensor (612) for detecting the air pressure which is arranged along the conduit or a supply (609) upstream of the flow regulator (611), a second pressure sensor (613) for detecting the air pressure which is arranged along the supply duct (609) downstream of the flow regulator (611) ) and upstream of the first base of the measuring chamber (CM), a proportional electronic pressure regulator (614) arranged along the supply duct upstream of the first pressure sensor (612) to regulate the air pressure in the supply duct (609), and an electronic processing and control unit (615) associated with the first sensor (612), the second sensor (613) and the proportional electronic pressure regulator (614) and which is programmed to control the proportional electronic regulator of pressure (614) according to the measurements of the first sensor (612) and of the second sensor (613) or of the second sensor (613) alternatively and respectively to keep substantially constant and equal to a value p the difference between the air pressure upstream and downstream of the flow regulator (611) or the air pressure entering the measuring chamber (CM) can be refissed.