Film thickness line scanner(in-line type) measures the full width and length of film thickness using hyperspectral imaging at the production line.
Once the line scanning sensor passes through above the film collecting spectrum data, it provides thickness information of the film.
The combination of a spectral interferometer and newly developed high precision processing technology enables film thickness measurement of 500mm wide film every 0.01 seconds.
#film thickness, in-line, line scan, hyperspectral imaging, scanning sensor, spectral interferometer, camera, measurement, determination
Line-scanning method enables film inspection of full width and length without any drop out
Originally designed hardware(hyperspectral camera) and software
Reliability guaranteed FFT analysis result
High precision measurement(patented)
|Measurement item||film thickness(FFT)|
|Wavelength range||400 ~ 920nm|
|Pixel per wavelength||approx. 0.6nm|
|Thickness measurement range||2 ~ 250μm|
|Measurement interval||10msec ~|
> PET film thickness
PET film has birefringence when enlonged, and the reflection spectrum is as shown in the figure. Our own processing method suppresses the effect of birefringence and enables highly accurate measurement.
> 500mm width film thickness