Instruments
Optical fibers
This is one of our key activities. We maintain intense R&D programs for new technologies, instrument improvements and new instruments, in close cooperation with our customers.
Our equipments benefit an important technological advance for metrology and defect detection of optical fibers on production towers. They meet the increasing performance of the drawing towers speeds.
The interferometric instruments allow to fully qualify in line the whole production within the specifications. This instrument line is used world wide in many factories.
Ξ Instrument line
LIS-G: Laser Interferometric Sensor for Glass (International patent)
- Absolute diameter measurement: ±0,15µm
- Repeatability: ±0.02µm at 50KHz.
- Fine defect detection, 100kHz.
- Ultra fine airline detection (0,6µm 300Hz).
- Spinning frequency and ovality measurement.
- Fiber vibration frequency measurement (drawing force).
NCTM: Non Contact Tension Measurement
- Measurement range: 0 to 400gr
- Accuracy: ±1gr within 4mm measurement field.
- Measurement band pass: 1KHz.
AIR: Ultra fine "airline" detection without "spinning"
- Sensitivity to 0.7µm minimum airline diameter.
- 100% glass section coverage.
- Detection frequency: 300Hz.
SQM: for coating defect detection (international patent)
- For coating defect detection in production towers or coloring lines.
- 100% Fibre surface coverage.
- 64 dots per circumference and 330 000 circumferences per second.
- User adjustable defect detection threshold.
LIS-C, 2axes: Laser Interferometric Sensor for Coating (Still under development)
- Diameter and eccentricity measurement.
- High speed, high resolution diameter changes (lump, neck) and eccentricity
measurement.
- Glass airline and coating bubbles, delaminations and inclusions detection.
FEM: Fiber Eccentricity Measurement: FEM.
- Electronic check of the coating asymmetry referring to
the glass.
- Application to optical fibers drawn with PMD compensation
Fiber Eccentricity Display: FED.
- Visual check of the eccentricity on two axes.
- Made to easily connect all CERSA-MCI instruments on one single PC
for a global display of the measures and the events, production report,
maintenance, etc…The PLC connect to the PC to get the data it needs.