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For years the textile industry has been using mechanical yarn tensiometers for measuring yarn tensions. Such tensiometers produce quite informative figures of the average yarn tensions, but because of the indication inertia it is impossible to check peak values and instantaneous variations. These mechanical tensiometers pull the running yarn out of its original path. The deflection caused generates additional tension which may amount to a considerable percentage of the indicated value. Mechanical yarn tensiometers require considerable free space for measurements to be taken along the running yarn. This may prevent measurements at desirable spots. Small yarn tensions ( below a few cN/ponds ) cannot be measured at all, yet just these tensions quite often play an important part in the processing of synthetic fibers. Quick tension changes due to the new high speed machines, travelers on a ring spinning and twisting frame, variations in balloon size, ring rail displacements, yarn tensioners or brakes, the shape of bobbins, machine drive parts, yarn irregularities etc., cannot be measured by a mechanical device. Moreover, a direct recording of smalest yarn tensions and short-time peak tensions is not possible. In order to overcome these difficulties, the ROTHSCHILD ELECTRONIC - TENSIOMETER R - 2000 was developed. Most, if not all measurements which previously could not be carried out, can now be undertaken. This instrument is of special value in measuring and recording tensions of standard yarns, synthetic yarns, elastomer yarns, ribbons, tows, glass fibers and wires. Apart from general use in production control, textile machinery designers and engineers from research and development laboratories find this instrument with its multitude of applications an indespensible tool for their work. By using the ROTHSCHILD ELECTRONIC-TENSIOMETER considerable improvements to the product quality and production efficiency can be expected.
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