Calibration is critical. Let’s say you think your flow rate is 200 CC per minute, but you have not calibrated the mass flow controllers. You manufacture a large quantity of preforms, and one of your mass flow controllers fails. You buy and install a new controller and set the flow for what you thought it was. However, it turns out your actual flow rate was not 200 CC per minute. The preform cannot be reproduced. You need to start over, experiment, and change flows until you achieve the desired optical properties. Meanwhile, time and materials are lost. Knowing your absolute flow rate at all times is critical. I recommend SG Controls’ automated calibration software interface to ensure a high level of assurance for this critical step in the process.
Additional resources from the FOC team include:
- Category Resource FOC Fiber Design and Manufacturing Page
- Glossary, Acronyms, Military Specifications for Connectors: http://bit.ly/2a2EFn8
- Q&A Resource: email technical questions to AskFOC@focenter.com
Have questions about this FOC Tip?
Contact FOC with questions at: (800) 473-4237 / 508-992-6464 or email: FiberOpticCenter@focenter.com and we will respond ASAP.
Additional articles from our preform fabrication consultant include:
- MCVD Tips: 14 ideas to enhance preform strength, yield, and reproducibility
- MCVD Options: These add-on features can enhance your optical fiber preform strength, yield, and reproducibility
- Controlling the optical fiber preform deposition process
- Preparing to Manufacture an Optical Fiber Preform
- Critical Design Goals to Manufacture Optical Fiber Preforms
- Comparing the 2 types of MCVD gas delivery systems to manufacture optical preforms: Stainless steel and Teflon/glass
- Attention specialty fiber manufacturers: Take advantage of FOC’s preform fabrication consulting to troubleshoot your system and achieve reproducibility and high yields