Filament Tension Sensor Calibration, Inspection and Fault Diagnosis for Textile Lines

Periodic calibration of online tension sensors can reduce real-time tension measurement error below 2.1% on filament processing lines. Data comes from sensor calibration reports and spindle tension sampling records, showing accurate tension feedback is the foundation of stable yarn forming. Electrical and process teams often search textile yarn tension sensor supplier, filament tension sensor calibration guide, tension reading drift symptoms, unstable tension troubleshooting, false twisting machine and chenille machine differences, high-speed filament tension monitoring scenarios, sensor installation maintenance notes, textile testing spare parts reliable vendor, contact and non-contact tension sensor comparison, online tension monitoring solution ranking to maintain tension detection system.

Online tension sensors are installed along yarn path to continuously monitor filament tension during running. The detected signal feeds back to PLC system to adjust roller speed or braking force. Inaccurate readings will lead to improper automatic adjustment. Over high tension causes yarn break; too low tension brings loose yarn and unstable twisting effect.

Sensor probe surface easily accumulates fiber dust and spinning oil after long-term operation. Contamination changes contact state between filament and sensing part, creating reading deviation. Regular surface cleaning uses soft cloth to wipe probe. Hard scraping tools are forbidden to avoid damaging sensitive sensing element.

Calibration work uses standard tension weight or reference calibration instrument. Calibration should be carried out in static state or low-speed running state. The sensor reading is compared with standard value. When deviation exceeds allowable range, adjust parameters or check installation state. Severe aging sensors need direct replacement.

Installation position and angle affect measuring precision. Filament must contact the sensing part in specified angle. Skewed installation makes partial force loss, resulting in measured value lower than actual tension. After sensor replacement or disassembly maintenance, re-calibration is mandatory.

Common sensor faults include zero drift, unstable jumping reading, no signal output and inconsistent data between adjacent spindles. When yarn break increases while machine parameters remain unchanged, check tension sensor status first. Many technicians adjust tension setting value repeatedly without checking whether sensor feedback is real.

Chenille wrapping station relies on tension sensor to stabilize core yarn feeding. Fluctuating core yarn tension leads to uneven pile length and inconsistent fabric handfeel after weaving. The tension monitoring system of chenille line needs higher frequency of calibration than ordinary false twisting equipment.

When purchasing tension sensors, factory engineers evaluate measuring range, response speed and anti-oil mist performance. New sensors are tested on single spindle first to observe long-term reading stability. Spare sensors are stored in dry environment to prevent circuit board moisture damage.

Preventive maintenance includes probe cleaning, zero point check, calibration, wiring inspection and signal log review. Vibration will loosen wiring terminals. Maintenance staff check cable connection and shielding condition during inspection, reduce electromagnetic interference impact.

After sensor calibration or replacement, low-speed test run is needed, collect multiple groups of tension sample data to verify stability. Only after confirming reading accurate can machine run at rated speed. Reliable tension sensor monitoring stabilizes filament running state and reduces tension-related quality defects.