Abstract: Disclosed is an apparatus for determining the inter-fiber frictional coefficient of staple fibers. The apparatus comprises a pair of clamps, one fixed and the other mobile wherein, each clamp receives an end portion of a sliver therewithin. The apparatus further comprises a pair of predetermined weights, each mounted over a clamp in order to exert normal force on either end of the sliver whereby the movement of the sliver within the clamps is resisted as the mobile clamp is moves away from the fixed clamp until the sliver is severed off, a force sensor for sensing the tensile force exerted by the sliver, and a means for computing the inter-fiber frictional coefficient, which is a function of the normal force and the amount of tensile force exerted by the sliver which overcomes the inter-fiber frictional force of the sliver.

Abstract: The invention relates to the method and apparatus for forming the calibration chart used to measure the amount of fuel inside the fuel tanks (1) which comprises at least one laser distance measurement device (2) positioned inside said fuel tank (1) and measuring the distance between itself and the inner wall of said fuel tank (1) at separate points, at least one main shaft (14) providing said distance measurement device (2) with rotational movement circularly in the direction of B through up to 360 degrees and in the upward-downward direction of A through up to 270 degrees and at least one inclinometer (4) positioned on the surface (9) and measuring the angle X between said fuel tank (1) and the ground on which it is located.

Abstract: Method and equipment for the detection and identification of particles in a suspension with the aid of acoustic signals, directed at at least one measurement volume within the suspension, via reception of acoustic reflection signals, conversion of the acoustic reflection signals into electrical reflection signals, counting the number of electrical reflection signals which have an amplitude in excess of a predetermined value and converting the count into numbers of particles which are larger than a certain size, at least one curve being composed on the basis of a cumulative count of the number of reflection signals which have an amplitude in excess of a specific value as a function of the amplitude and the at least one curve being compared with predetermined standard cumulative count curves and material properties, particle concentration, particle size distribution and/or particle characteristics, such as particle shape, particle size and standard deviation thereof, are deduced from the comparison.