Describing the thin film coating thickness gauge's operation
Guide: Optical coating technology: For light-transmitting materials, when the material is certain, the transmittance and the measured thickness have a one-to-one correspondence relationship. All the optical transmittance (optical density) of the material is measured to measure the thickness of the material. The purpose of this measurement technology is now very mature. It is often used in the roll-to-roll coating industry to detect the thickness of various films such as aluminized film and packaging film. It is not just a film, as long as it is a material that can transmit light. The quality of the product can be monitored by monitoring the light transmittance through the precision measurement and control thin film coating online thickness measurement system. The test points of this thin-film coating online thickness measurement system can be customized.
The precision spectrum measurement and control thin film coating thickness gauge is a near-infrared photoelectric analysis instrument that uses a fixed near-infrared wavelength to test the water content of different products. It is an integrated instrument. All components necessary for continuous monitoring are placed in the instrument. Simultaneous testing of two components (e.g. coating thicknesses of water-based and oil-based adhesives).
The working principle of precision spectrum measurement and control thin film coating thickness gauge
The O-H bonds of water molecules absorb near-infrared radiation at several specific wavelengths. Spectrum measurement and control Three filters on the rotating filter disc in the precision spectrum measurement and control tester produce these absorption wavelengths and non-absorption wavelengths, which are alternately reflected from the product surface to the internal optical components, and the electronic pulses converted from optical signals pass through a ratio The algorithm calculates a proportional moisture content which is then corrected for offset and span to a direct moisture content. The specially designed filter reflection signal algorithm eliminates the deviation caused by the aging of optical components and different material reflection characteristics.
Jingpu Measurement and Control Thin Film Coating Thickness Gauge has the advantages of high measurement accuracy, convenient operation and fast measurement speed. Its automatic detection system can greatly improve the quality and production efficiency of coating products. The automated measurement process saves the measurement results in the form of data, which is conducive to product quality control, optimizes coating product parameters, reduces waste, and saves production costs. . It is an essential online testing instrument for manufacturers.
