FIBER LENGTH MEASUREMENT By Bilal Ahmad Jan

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• The mean length, upper quartile length, andother length measurements are calculatedfrom this weight data.Error• The most common error is Operatorerror in combing and sorting the fibers.
METHOD 1• i) That all fibers are at least as long as k and extend whollyacross the middle portion• (ii) That they lie straight and free from crimp• (iii) That the fiber weight per unit length is the same for alllengths• (iv) That the fibers are not tapered towards either end. Becauseof this last assumption, the results for cotton are invariably onthe low side• If L = mean fiber length,• N = number of fibers in the tuft, and• W = mean fiber weight per unit length,• Then, the total weight of fiber = Lwn,• The weight of the middle portion = kwn,• The weight of the fringes = wn(L-k), and• The ratio, r =• Whence: L=k(r+1).wn(L-k) = L - 1,kwn k
Page 1 and 2: FIBER LENGTHMEASUREMENTByBilal Ahma
Page 3 and 4: Example• Wheel of Motor-Cycle is
Page 5 and 6: Method• First the fiber is dip in
Page 7 and 8: Scanning Methods• Give quicker re
Page 9 and 10: • (iii) A gauging apparatus with
Page 11: Cutting-And Weighing Methods• Mat
Page 15 and 16: • The length L1 and L2 arepredete
Page 17 and 18: • W1+W2=nL”w,L”=(W1+W3)/nw•
Page 19 and 20: Measurement Error• Fiber is caugh
Page 21 and 22: Graph B/t V and TPLANT FIBER LENGTH
Page 23: • System Diagram

FIBER LENGTH MEASUREMENT By Bilal Ahmad Jan

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