The TG20-X/β Series Electrode Basis Weight Gauge is specially designed for the measurement and control of the coating basis weight on lithium battery electrode sheets. The system is composed of a host control unit, an X-ray or beta-ray measurement module, and a detector positioning mechanism.
It delivers highly accurate and reliable measurements of coating basis weight and thickness on lithium battery electrodes, enabling consistent quality control throughout the production process.
Technical Specifications
Measurement Principle
The laser thickness gauge is based on the triangulation method, utilizing integrated triangulation sensors to measure the distance from the mounting frame to the surface of the target object. Based on the fixed spacing of the frame, the system calculates the material's thickness.
When the object’s thickness changes, the laser beam emitted from the transmitter reflects off the object and lands at a shifted position on the receiving sensor. The system calculates the thickness variation using geometric analysis and outputs the thickness data in digital form or graphical curves.
During operation, two laser displacement sensors are positioned opposite each other—one above and one below the material—to simultaneously measure the upper and lower surface positions. The material thickness is then calculated using the formula:
h = L – A – B,
where:
· L = fixed distance between the two sensors
· A = distance from upper sensor to top surface
· B = distance from lower sensor to bottom surface
Industry-Tailored Software Features
· Intelligent and user-friendly operation
· Real-time measurement data display
· Powerful visualization tools: real-time thickness graph, overlaid data curves, zone-based trend graphs, and 3D longitudinal/transverse thickness maps
· Database-driven data logging and management
· Full traceability with long-term storage capability (up to 3 years)
· Recipe-based template function for parameter presets per process requirements
· Supports fixed-point measurement
· Automatic sensor activation and scanning control
Communication & Bus Interface
· Supports integration with MES systems
· Allows data exchange between host PC and LAN via bus communication
· Compatible with PLC, Ethernet, RS485, RS232, and other industrial bus interfaces
Automatic Thickness Control for Calendering Equipment
· The system sends real-time thickness data to the calendering machine, which automatically adjusts the roll gap and angle
· Control accuracy: ±0.2% (FS), equal to or better than the scan resolution
