Film thickness line scanner

(in-line type)

Film thickness line scanner(in-line type)

Products > Film evaluation > Film(coating) thickness > Film thickness line scanner(in-line type)

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.

  • 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)

  • High speed measurement
  • No effect on determination from film fluttering during operation
  • By arranging line scanners in a row, wide sample can be measured at one-time(up to 10m in TD direction)

Measurement itemfilm thickness(FFT)
Position resolution1mm
Measurement width500mm
Wavelength range400 ~ 920nm
Pixel per wavelengthapprox. 0.6nm
Thickness measurement range2 ~ 250μm
Measurement interval10msec ~
Measured data

> 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