Academic Journal
Infrared nondestructive detection of defective visible-reflective solder joints in solenoid coil connectors
| العنوان: | Infrared nondestructive detection of defective visible-reflective solder joints in solenoid coil connectors |
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| المؤلفون: | Zhao Dong, Francisco Oviedo-Tolentino, Abel Hernandez-Guerrero, Benjamin Giron-Palomares |
| المصدر: | Advances in Mechanical Engineering, Vol 14 (2022) |
| بيانات النشر: | SAGE Publishing |
| سنة النشر: | 2022 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | Mechanical engineering and machinery, TJ1-1570 |
| الوصف: | Nondestructive infrared detection of solder defects in solenoid coil connectors was investigated. A detailed experimental setup and a meticulous and repeatable experimental procedure were developed. The experimental methods were firmly based on the application of heat transfer science. Time averaged excess temperature ( θ ¯ ) was the sole discrimination parameter, and a difference larger than 2°C between good and defective solders was conservatively considered for good discrimination. Analysis of variance determined the minimum differences in θ ¯ between good and defective solder joints. The effects in discriminability of heating time ( t h ), time integration interval length ( t i ), region of interest (ROI) geometry, and solder radiative properties were investigated. A rectangular ROI tightly enclosing the good solder was found as the best discrimination ROI. Matte black paint increasing radiative emission of solder joints significantly reduced discriminability. The defects were discriminated from the good solder for a rectangular ROI, t h = 78 s, and t i = 20 s. Moreover, an excellent total inspection time of 34 s per solenoid coil is obtained by considering a well-controlled inspection environment during manufacturing, severe defects detection, and a possible 1°C difference for discrimination. Several aspects of the novel inspection procedure developed can greatly benefit the thermal imaging scientific community. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1687-8140 |
| Relation: | https://doi.org/10.1177/16878132221107453; https://doaj.org/toc/1687-8140; https://doaj.org/article/40a8f81629fc4dc6ac3962a8591511a1 |
| DOI: | 10.1177/16878132221107453 |
| الاتاحة: | https://doi.org/10.1177/16878132221107453 https://doaj.org/article/40a8f81629fc4dc6ac3962a8591511a1 |
| رقم الانضمام: | edsbas.CC60D12F |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 16878140 |
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| DOI: | 10.1177/16878132221107453 |