As plastic laser welding technology gains widespread adoption in automotive manufacturing, consumer electronics, and precision instrumentation, consistency of transmittance in welded components has become a core metric affecting final product yield. Conventional single-point transmittance meters suffer from missed measurements, low efficiency, and incompatibility with irregularly shaped parts—challenges that many manufacturers face in persistently high welding defect rates. To address this industry pain point, Jingyi Optoelectronics has launched the JY-T980 Full-Field Transmittance Meter—specifically engineered for near-infrared (NIR) transmittance measurement of plastics used in welding. Leveraging area-scan imaging and multi-point synchronous detection, this instrument fully overcomes the limitations of traditional methods. To maximize its performance, users are advised to follow these professional operational guidelines:

**Pre-Use Environmental Calibration: Minimizing Measurement Deviation at the Source**  
Unlike standard transmittance meters sensitive only to visible light, the JY-T980 features an optically optimized path tailored to the NIR wavelengths commonly employed in plastic welding. Therefore, in addition to avoiding direct exposure to strong ambient light, the device must also be positioned away from high-power heat sources and NIR supplemental lighting—potential NIR interference sources—that could otherwise compromise measurement accuracy. Thanks to Jingyi Optoelectronics’ proprietary temperature-stabilized optical path system, the JY-T980 requires only a 1-minute warm-up period—significantly shorter than the typical 3–5 minutes required by conventional instruments—enabling rapid stabilization after power-on and better alignment with high-speed production-line inspection demands.

**Customizable Parameter Configuration: Meeting Diverse Part Inspection Requirements**  
Standard transmittance meters often require repeated manual repositioning of the light source to ensure uniform illumination. In contrast, the JY-T980 integrates a full-field uniform-area light source, pre-calibrated for illumination homogeneity at the factory. Users need not adjust the light source manually; instead, they simply delineate the inspection region freely on the touchscreen interface according to part geometry—for instance, precisely defining the irregular weld zone of an automotive rearview mirror bracket or the curved transmissive area of a headlamp cover. Additionally, users can customize acceptable transmittance thresholds based on specific welding process requirements, eliminating the need for post-measurement manual parameter verification and significantly streamlining operation.

**Efficient Measurement Operation: Eliminating Missed Measurements and Boosting Throughput**  
When placing a sample, there is no need—as with single-point meters—to repeatedly align individual measurement points. Simply position the part within the instrument’s effective detection area. The JY-T980 automatically recognizes and locates the pre-defined inspection region. Upon initiating measurement, it completes transmittance evaluation across the entire field-of-view in under one second—delivering tens-of-times higher efficiency compared to conventional point-by-point scanning, while guaranteeing zero missed inspections. This makes it especially suitable for multi-point inspection tasks such as automotive instrument panels and engine plastic components. No additional part fixation is required during measurement; stable data acquisition is ensured as long as the instrument remains undisturbed by external vibration or force.

**Result Processing and Routine Maintenance: Extending Equipment Service Life**  
Upon completion of measurement, the instrument automatically extracts transmittance data from the designated inspection region and instantly compares it against preset acceptance criteria to generate OK/NG pass/fail judgments. Measurement data can be directly exported and integrated with the factory’s MES system, enabling end-to-end traceability of welding quality—eliminating manual data recording and calculation. For routine maintenance, the optical lens features dust- and scratch-resistant coating; surface dust can be gently removed using a lint-free soft cloth—no specialized cleaning agents required. After extended idle periods, restarting the instrument requires only running its built-in one-click calibration program for precision verification—a process up to 60% simpler than conventional calibration routines. Annual routine maintenance, per the user manual, ensures long-term operational stability.

As an innovative enterprise in China’s optical inspection sector, Jingyi Optoelectronics has successfully deployed the JY-T980 Full-Field Transmittance Meter across multiple automotive component manufacturers’ production lines. It has helped customers reduce plastic welding defect rates by over 22% and increase inspection throughput by 100-fold—establishing itself as a cornerstone instrument for quality control in plastic laser welding processes.

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