EINRICHTUNG ZUM MESSEN EINES FADENS.

摘要

The appts. to measure a yarn has two light-sensitive components (3) to one side of the measurement slit (19) which receives the light (23) transmitted through the slit (19) by a common light source (2). The yarn (1) passes through a guide (20) for positioning so that it casts a shadow on only one light receiver (3). The received light values arae sent to a comparator or evaluator for physical values to be compared from the two light receivers using the unit which is not shadowed by the yarn as the basis for comparison. The comparison gives a value for at least one dimension of the yarn (1).