# OFSCN Global Technical Center **URL:** https://forum.ofscn.net/c/global-tech-center/15.md [Latest](https://forum.ofscn.net/latest.md) · [Categories](https://forum.ofscn.net/categories.md) · [Tags](https://forum.ofscn.net/tags.md) --- ## [About the OFSCN Global Technical Center Category](https://forum.ofscn.net/t/about-the-ofscn-global-technical-center-category/115)
**Author:** [@chenshaoyang](https://forum.ofscn.net/u/chenshaoyang)\ **Replies:** 0\ **Last updated:** [December 19, 2025, 4:19pm UTC](https://forum.ofscn.net/t/about-the-ofscn-global-technical-center-category/115 "2025-12-19T16:19:08Z")
Index only. Please post in the appropriate subcategory below. Multilingual support enabled. --- ## [What is the prevention of "end-face burn-through"?](https://forum.ofscn.net/t/what-is-the-prevention-of-end-face-burn-through-optical-damage/3209)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:16pm UTC](https://forum.ofscn.net/t/what-is-the-prevention-of-end-face-burn-through-optical-damage/3209 "2026-10-31T14:16:34Z")
How to prevent "fiber fuse" in high-power systems? --- ## [What are the "installation torque" specifications?](https://forum.ofscn.net/t/what-are-the-installation-torque-specifications/3206)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:16pm UTC](https://forum.ofscn.net/t/what-are-the-installation-torque-specifications/3206 "2026-10-31T14:16:15Z")
When tightening an FC connector, how do you know it's fully seated? --- ## [How are "end-face scratches" classified?](https://forum.ofscn.net/t/how-are-end-face-scratches-classified/3208)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:16pm UTC](https://forum.ofscn.net/t/how-are-end-face-scratches-classified/3208 "2026-10-31T14:16:01Z")
What are zones A, B, and C? Where are the scratches most fatal? --- ## [What is a "factory test report"?](https://forum.ofscn.net/t/what-is-a-factory-test-report/3205)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:15pm UTC](https://forum.ofscn.net/t/what-is-a-factory-test-report/3205 "2026-10-31T14:15:24Z")
Does every jumper have its own "ID card" and performance data? --- ## [What is "packaging coiling diameter"?](https://forum.ofscn.net/t/what-is-the-packaging-coiling-diameter/3204)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:14pm UTC](https://forum.ofscn.net/t/what-is-the-packaging-coiling-diameter/3204 "2026-10-31T14:14:59Z")
Why are OFSCN® jumpers shipped wound around large spools instead of being folded? --- ## [What is "traceability"?](https://forum.ofscn.net/t/what-is-traceability/3203)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:14pm UTC](https://forum.ofscn.net/t/what-is-traceability/3203 "2026-10-31T14:14:30Z")
How can I find out which worker processed this jumper wire by using its barcode? --- ## [What is "quality consistency"?](https://forum.ofscn.net/t/what-is-quality-consistency/3202)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:14pm UTC](https://forum.ofscn.net/t/what-is-quality-consistency/3202 "2026-10-31T14:14:10Z")
Why must the performance of jumpers from the same batch be identical? --- ## [What is "environmental stress screening (ESS)"?](https://forum.ofscn.net/t/what-is-environmental-stress-screening-ess/3200)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:14pm UTC](https://forum.ofscn.net/t/what-is-environmental-stress-screening-ess/3200 "2026-10-31T14:14:06Z")
Why do jumpers undergo "sauna" and "freezing" treatments before leaving the factory? --- ## [What is the "splitting / unclip" of a duplex LC connector?](https://forum.ofscn.net/t/lc-what-is-the-splitting-unclip-of-a-duplex-lc-connector/3199)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:13pm UTC](https://forum.ofscn.net/t/lc-what-is-the-splitting-unclip-of-a-duplex-lc-connector/3199 "2026-10-31T14:13:10Z")
Can two LC connectors that are stuck together be separated and plugged in individually? --- ## [What is the polarity of fiber optic patch cords?](https://forum.ofscn.net/t/what-is-the-polarity-of-fiber-optic-patch-cords/3198)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:12pm UTC](https://forum.ofscn.net/t/what-is-the-polarity-of-fiber-optic-patch-cords/3198 "2026-10-31T14:12:59Z")
Why does the device sometimes not work even when the jumper is connected correctly? Is the fiber optics crossed? --- ## [What are "vacuum environment applications"?](https://forum.ofscn.net/t/what-are-vacuum-environment-applications/3197)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:11pm UTC](https://forum.ofscn.net/t/what-are-vacuum-environment-applications/3197 "2026-10-31T14:11:14Z")
Do the encapsulation materials outgas in a vacuum? Will this contaminate my laboratory? --- ## [What is "fiber optic sensing maintenance"?](https://forum.ofscn.net/t/what-is-fiber-optic-sensing-maintenance/3196)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:10pm UTC](https://forum.ofscn.net/t/what-is-fiber-optic-sensing-maintenance/3196 "2026-10-31T14:10:48Z")
Does the sensor need a "physical examination" every year? What are the main things to check? --- ## [What is the "robustness of peak-finding algorithms"?](https://forum.ofscn.net/t/what-is-the-robustness-of-peak-finding-algorithms/3194)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:10pm UTC](https://forum.ofscn.net/t/what-is-the-robustness-of-peak-finding-algorithms/3194 "2026-10-31T14:10:26Z")
When the signal is very weak, does the software report an error or arbitrarily guess a number? --- ## [What is the "dynamic range trap"?](https://forum.ofscn.net/t/what-is-the-dynamic-range-trap/3193)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:10pm UTC](https://forum.ofscn.net/t/what-is-the-dynamic-range-trap/3193 "2026-10-31T14:10:26Z")
Why can't some demodulators find a signal after connecting 5 kilometers of optical fiber? --- ## [What is "spectral distortion"?](https://forum.ofscn.net/t/what-is-spectral-distortion/3192)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:09pm UTC](https://forum.ofscn.net/t/what-is-spectral-distortion/3192 "2026-10-31T14:09:40Z")
Why did the reflection peak split into two? Does this indicate uneven stress on the sensor? --- ## [What is "environmental thermal drift"?](https://forum.ofscn.net/t/what-is-environmental-thermal-drift/3191)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:09pm UTC](https://forum.ofscn.net/t/what-is-environmental-thermal-drift/3191 "2026-10-31T14:09:15Z")
If the demodulator is placed in a tin cabinet on a hot summer day, is the data it measures accurate? --- ## [What is a "factory calibration certificate"?](https://forum.ofscn.net/t/what-is-a-factory-calibration-certificate/3190)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:08pm UTC](https://forum.ofscn.net/t/what-is-a-factory-calibration-certificate/3190 "2026-10-31T14:08:52Z")
What should I do if the certificate is lost? Can I retrieve the sensor parameters using the serial number? --- ## [What is "mechanical protection of optical fibers"?](https://forum.ofscn.net/t/what-is-mechanical-protection-of-optical-fibers/3189)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:08pm UTC](https://forum.ofscn.net/t/what-is-mechanical-protection-of-optical-fibers/3189 "2026-10-31T14:08:39Z")
Why does OFSCN® recommend adding an armored flexible conduit around the sensor? --- ## [What is a "standardized interface"?](https://forum.ofscn.net/t/what-is-a-standardized-interface/3187)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:07pm UTC](https://forum.ofscn.net/t/what-is-a-standardized-interface/3187 "2026-10-31T14:07:57Z")
Can I connect the demodulator data directly to my large screen monitoring system? --- ## [What is the "misconception about sampling frequency"?](https://forum.ofscn.net/t/what-is-the-misconception-about-sampling-frequency/3186)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 31, 2026, 2:07pm UTC](https://forum.ofscn.net/t/what-is-the-misconception-about-sampling-frequency/3186 "2026-10-31T14:07:45Z")
Is faster sampling always better? Is using 100Hz for dam deformation measurement a waste of money? --- ## [What is a "fiber laser"?](https://forum.ofscn.net/t/what-is-a-fiber-laser/3185)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:34am UTC](https://forum.ofscn.net/t/what-is-a-fiber-laser/3185 "2026-10-28T06:34:29Z")
Why can optical fibers emit powerful lasers on their own? --- ## [Can optical fibers measure the geomagnetic field?](https://forum.ofscn.net/t/can-optical-fibers-measure-the-geomagnetic-field/3183)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:34am UTC](https://forum.ofscn.net/t/can-optical-fibers-measure-the-geomagnetic-field/3183 "2026-10-28T06:34:03Z")
How does it sense tiny changes in Earth's magnetic field? --- ## [What is a "fiber optic sensor network"?](https://forum.ofscn.net/t/what-is-a-fiber-optic-sensor-network/3181)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:33am UTC](https://forum.ofscn.net/t/what-is-a-fiber-optic-sensor-network/3181 "2026-10-28T06:33:49Z")
Why can one fiber optic cable connect hundreds of sensors in series? Won’t they interfere with each other? --- ## [光纤能测冰厚吗？ | Can optical fibers measure ice thickness?](https://forum.ofscn.net/t/can-optical-fibers-measure-ice-thickness/3180)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:33am UTC](https://forum.ofscn.net/t/can-optical-fibers-measure-ice-thickness/3180 "2026-10-28T06:33:09Z")
在电线上挂着，光纤是怎么知道上面结了多厚的冰？ --- ## [What is "fiber optic self-healing"?](https://forum.ofscn.net/t/what-is-fiber-optic-self-healing/3178)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:32am UTC](https://forum.ofscn.net/t/what-is-fiber-optic-self-healing/3178 "2026-10-28T06:32:25Z")
I've heard that some damaged optical fibers can be restored by heating them. Is this true? --- ## [Can optical fibers detect acid rain?](https://forum.ofscn.net/t/can-optical-fibers-detect-acid-rain/3177)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:31am UTC](https://forum.ofscn.net/t/can-optical-fibers-detect-acid-rain/3177 "2026-10-28T06:31:59Z")
In environmental monitoring, how does fiber optics sense the pH of rainwater? --- ## [What is fiber optical nonlinearity?](https://forum.ofscn.net/t/what-is-fiber-optical-nonlinearity/3176)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:31am UTC](https://forum.ofscn.net/t/what-is-fiber-optical-nonlinearity/3176 "2026-10-28T06:31:37Z")
Why does fiber optic cable behave erratically and produce strange light when the light is too strong? --- ## [Can optical fibers measure vacuum level / pressure?](https://forum.ofscn.net/t/can-optical-fibers-measure-vacuum-level-pressure/3175)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:30am UTC](https://forum.ofscn.net/t/can-optical-fibers-measure-vacuum-level-pressure/3175 "2026-10-28T06:30:57Z")
How does fiber optics sense the pressure inside a vacuum chamber in a semiconductor factory? --- ## [Can optical fibers measure wind speed?](https://forum.ofscn.net/t/can-optical-fibers-measure-wind-speed/3173)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:30am UTC](https://forum.ofscn.net/t/can-optical-fibers-measure-wind-speed/3173 "2026-10-28T06:30:24Z")
On wind turbines, how do optical fibers sense the force of the wind blowing? [Next page](https://forum.ofscn.net/c/global-tech-center/15.md?page=1)