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We know that the copper clad laminate is the basic material of the PCB industry, and every manufacturer has strict requirements on the thickness of the copper clad laminate, because its thickness directly affects the characteristic impedance of the PCB. At present, most domestic copper clad laminate manufacturers use contact measurement methods, some are online measurement, and some are offline sampling. With the improvement of quality requirements, the laser measurement method is gradually recognized by everyone and is applied to the production line. Its advantages are beyond the reach of traditional measurement methods:
1. No need to stop, continuous measurement, improve productivity;
2, non-contact, no damage to the surface of the measured object;
3. Fast data processing capability provides the possibility for online control;
4, objective and reproducible measurement results are not affected by the operator;
5. Powerful data processing provides reliable support for R&D;
6. Make PCB manufacturers profitable through the limitation of errors and the improvement of productivity.
OPTEX's solution for copper clad laminate measurement is a three-point solution with an automatic correction system.
The above system can increase or decrease the measuring points according to the actual needs of customers. The measurement accuracy of this differential measurement method is not affected by the conveyor belt speed and the vertical runout of the sheet, and the OPTEX laser sensor measurement is also not affected by the color or texture of the sheet surface. Therefore, the system can obtain stable and accurate measurement data.
The OPTEX laser measurement system is working on the copper clad laminate production line
System Features
1. Original automatic correction device
When you need to calibrate, use the execute button on the software. The pneumatic arm on the device will automatically extend to the measurement area, the standard module at the top of the pneumatic arm will rotate, the sensor will start measuring this module, and the software will automatically set the compensation value according to the standard value to achieve the purpose of calibration. This eliminates human error caused by manual calibration and ensures the accuracy of system measurement.
Automatic correction device in OPTEX laser measurement system
2. Powerful software
The software provides 9-point measurement values or 6-point measurement values (optional) commonly used in the PCB factory, online measurement scan curve graphs, maximum and minimum bar graphs, cross-sectional thickness distribution graphs, and measurement value statistics for research and development. Calculation table etc. Quality control personnel can also analyze product quality trends based on the above information, find out the reasons and make improvements, so as to further improve product quality.
Multiple interface connection methods
The sensor itself has analog and digital output
4-20mA
RS485
The system can be connected to a PC or PLC control system through the following interface components
RS232ASCII
EthernetUDP
ProfibusDP
System Technical Specifications
Sensor: Use Polaris or Atlas from OPTEX
Environmental conditions: 0-40oC, 35-85% relative humidity, non-condensing
Thickness measurement range: ≥0.1mm
Sensor linearity: ±0.002mm (Atlas); ±0.007mm (Polaris)
Power supply: AC 230V
