Electronic Sensor
A solid-state electronic device converts mechanical pressure or stress into an electrical voltage signal. A piezoelectric transducer detects the minute changes in yarn tension that occur as the linen thread runs through the spinning frame or the loom feeder. By utilizing quartz or ceramic crystals, this sensor delivers real-time data on the physical forces acting on the flax fibers.
This rapid response allows mills to automate yarn breakage detection and prevent defective fabric production.
Tension Measurement
The physical principle of crystal deformation under load ensures highly accurate force readings. As the linen yarn passes over the ceramic guide of the piezoelectric transducer, any change in yarn friction or drag results in a proportional change in the sensor voltage. This voltage is processed by the loom control computer to adjust the yarn feed rate instantly.
Accurate adjustment is necessary because linen has very low elasticity and will snap if tension exceeds the limit.
Signal Output
Routine calibration maintains the sensitivity of the sensor in dusty mill environments. Accumulated flax lint can damp the movement of the transducer and distort the tension readings. Mill technicians blow compressed air over the sensor heads at the start of each shift to prevent measurement errors.
