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​​How to Resolve Measurement Challenges? Dacheng Precision Super β Areal Density Gauge Delivers the Ultimate Solution!​

The Super β-ray areal density gauge is primarily used in lithium battery cathode and anode coating processes to measure the areal density of electrode sheets.

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Performance Enhancement​

​​Parameter​​

​​Standard β-ray Areal Density Gauge​​

​​Super β-ray Areal Density Gauge​​

​​Repeatability Accuracy​​

​​16s integration​​: ±3σ ≤ ±0.3‰ of true value or ±0.09g/m²;
​​4s integration​​: ±3σ ≤ ±0.4‰ of true value or ±0.1g/m²;
​​0.1s integration​​: ±3σ ≤ ±1.2‰ of true value or ±0.22g/m²

​​16s integration​​: ±3σ ≤ ±0.25‰ of true value or ±0.08g/m²;
​​4s integration​​: ±3σ ≤ ±0.3‰ of true value or ±0.09g/m²;
​​0.1s integration​​: ±3σ ≤ ±1‰ of true value or ±0.2g/m²

​​Scanning Speed​​

0–24 m/min

0–36 m/min

​​Spot Width​​

20 mm, 40 mm

3 mm, 5 mm, 10 mm, 15 mm

​​Radiation Source​​

300 mci, 500 mci circular source

500 mci, 1000 mci linear source

 

Spot Width

The dimension of the β-ray spot perpendicular to the electrode sheet’s travel direction defines the spot width, which determines the lateral spatial resolution of the areal density gauge.

With advancements in battery safety and performance, production lines now demand ​​higher precision and spatial resolution from β-ray areal density gauges. However, under identical testing conditions, smaller spot widths improve spatial resolution (enabling more detailed surface profiling) but reduce measurement accuracy.

To address this challenge, Dacheng Precision optimizes the spot width to a minimum of 3mm​while maintaining measurement accuracy, offering configurable options tailored to specific user requirements.

 

Functional Design​

System Stability​​

  1. ​​Precision O-Type Scanning Frame​​
  2. ​​Sensors utilize high-precision servo drives​​
  3. ​​β-ray source lifespan: Up to 10 years​​
  4. ​​Self-calibration: Compensates for air temperature/humidity variations and radiation intensity attenuation​​
  5. ​​Proprietary high-speed acquisition module: Sampling frequency up to 200kHz​​
  6. ​​Radiation detector: Enhanced performance via window/signal optimization; Response time <1ms, detection accuracy <0.1%, signal utilization efficiency improved by 60% vs. conventional detectors​​
  7. ​​Software features: Real-time heatmaps, auto-calibration, pulse analysis, roll quality reports, one-click MSA​

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Future Development​​
Dacheng Precision remains committed to R&D-driven innovation, delivering cutting-edge measurement solutions to support global clients in achieving high-quality development in the lithium battery industry.

Post time: Apr-29-2025