a test bench for the measurement of physical properties of surface state of textile knitted textile textile surface area test)

摘要

a test bench for the assessment of surface of textile fabrics based on the tribological properties of textile fabrics and their periodic nature. the present invention relates to a semi automated testbed to evaluate the state of the surface of the textile fabric is subject to contact with a large part of the evaluation of their touch.it is composed of a table (1) on which we have all the components of the test bench for which we have to take account of the fact that it is a good investment and not to transmit the vibration of the engine block is the block (22) sample (2) and the sensor (20).a sample is cut in the shape of a disc of diameter 30 cm and relaxed, the sample (2) and is fixed with a fixing ring (4) with the aid of three nuts (6) located moletu00e9s two at an angle 120 degrees. the sensor (20) is fixed on the longitudinal column (16) with the aid of the attachment (21).we can fix the sliding beam using two rules (15) fixed to the column (12) and the horizontal and longitudinal column (16). the height of the sensor (20) and the force that is applied on the sample are adjustable with the aid of a vertical column (10) and a controller (8).once the sample is fixed on the sample and the height of the sensor is determined, we can start the test with a start / stop system (30). the test bench is provided with a three-phase motor (22) coupled with a mechanical variable speed (24).the transmission of rotation is provided by a belt driving pulley (28) and the report of transmission and receiving is 0.375. the topography of the knitting head sensor, going up and down movement of the converted dc voltage is measured. the signal is processed using a fourier transform and spectral analysis.