Benefits of Real-Time Online Monitoring of Coating Thickness
In-Line Monitoring of Coating Transmittance, Optical Density, and Thickness
Real-time in-line monitoring of coating transmittance, optical density, and thickness
Whether coated glass meets color and quality requirements is a key concern for glass manufacturers. In conventional production, a batch is sampled and checked only after manufacturing is complete. If the results show that the batch is out of specification, the finished products may need to be scrapped, wasting labor and reducing production efficiency. Overseas in-line inspection systems are often sold as part of very large, high-cost glass production lines, putting them beyond the reach of many small and medium-sized manufacturers.
1. Product overview
Fulcrum Technology's LS152 in-line glass transmittance tester measures visible-light transmittance of continuously produced coated glass, patterned glass, and other transparent or translucent parallel, flat materials, including roll-to-roll vacuum-coated materials. It is designed for glass production lines and other processes where optical density must be monitored continuously.
The system consists of three parts:
1. Measurement and control unit: measurement stations (a light-source probe and a receiver probe), a controller, and aluminum supports.
2. Human-machine interface control cabinet: an HMI, power supply, and stainless-steel enclosure. It displays the transmittance value at each measurement point in real time.
3. Optional computer-based real-time monitoring and data-acquisition system: monitors data from all measurement points and allows the display to switch between transmittance and optical density.
2. Measurement technology
In-line inspection of coated glass combines precision mechanics, digital technology, and spectroscopy for use in glass manufacturing. Coated glass is valued for its clarity, appearance, and energy-saving properties. As coating types and functions expand and product performance requirements rise, manufacturers need increasingly precise control of transmittance. Optical inspection plays an important role in controlling coating performance and improving product quality.
3. Key features of the in-line glass transmittance tester
1. Configure 3, 6, 9, or 12 measurement channels across the production line to meet customer requirements.
2. A collimated light path and focused receiver design support measurement of thicker materials.
3. Temperature compensation helps keep readings stable and allows operation in high-temperature environments.
4. Installation and maintenance at the production site are convenient. The system is straightforward to operate, stable, and designed for continuous long-term use.
5. Communication functions allow measurement data to be connected to a computer. The optional monitoring and acquisition system can record and analyze production conditions over time.
4. Market outlook and production benefits
Glass manufacturers need to know whether coated glass meets color and quality requirements. When inspection takes place only after a batch is finished, an out-of-specification result can mean scrapping the entire batch, wasting labor and lowering efficiency. Many overseas online inspection systems are bundled with extremely expensive, large-scale glass production lines, making them unaffordable for smaller manufacturers.
The LS152 in-line glass transmittance tester from Linshang, represented by Fulcrum Technology, can monitor film thickness, coating uniformity, and glass transmittance directly on the production line. Real-time inspection makes it possible to respond to deviations sooner and helps prevent products from falling below applicable national standards. By identifying and addressing issues during production, manufacturers can avoid unnecessary losses, save production time, and improve efficiency. In-line measurement supports industrial production needs and has broader value for research and society as well.
For an application review, confirm the required measurement points, material thickness, temperature conditions, communication requirements, and current LS152 configuration with the supplier.