Sensors for Tapio Analyzer

The available sensors for the Tapio Analyzer can be found below.

A close-up of the Tapio basis weight sensor positioned above a moving sheet on a roller bed, used for measuring grammage.

Basis Weight Sensor

  • Beta radiation basis weight sensor
  • Kr-85 source with semiconductor detectors
  • Aperture 5 mm
  • All grades up to 1000 g/m^2, accurate basis weight measurement up to 10 000 samples/m
  • Wet end, stock approach, coating problem solutions
  • Formation measurements, flock size analysis
  • Verification and calibration of online measurements
Close-up of the Tapio Caliper sensor measuring the thickness of a paper sheet as it passes between two black sensor modules.

Caliper Sensor

  • Small contact area, d=0.3 mm
  • Range up to 800 μm, can be extended
  • High accuracy caliper profile
  • Calender, press section problems
  • Printability estimation
  • Verification and calibration of online caliper measurements
Tapio Gloss Sensor measuring gloss on both sides of a paper sheet with a 75° angle.

Gloss Sensor

  • Dual-sided measurement of standard gloss & small scale gloss variation
  • Standard angle 75°
  • Aperture 5 mm
  • All grades, even base paper
  • Press section, rolls, felts
  • Coating, backing roll effect verification and identification, size press effects and other
  • Small scale gloss variation before and after printing (i.e. gloss mottling studies)
  • Verification and calibration of online measurements
  • Ideal for paper machine troubleshooting
Tapio Ash Sensor measuring filler content in coated paper using low-energy gamma radiation.

Ash Sensor

  • Fe-55 source with semiconductor detector
  • Aperture 5 mm
  • Coated, filled grades
  • Retention problems
  • Coat weight, coating weight variation, coater optimization etc.
Tapio Transmission Sensor analyzing optical transmission properties of paper.

Transmission Sensor

  • 1 mm aperture
  • All grades, wavelength selectable white / red / IR
  • Press section variations, moisture and temperature related variations
  • Optical formation and flock size analysis
  • In most grades transmission has good correlation to basis weight
  • Important when calender, press section and wet end effects must be separated from each other
Tapio Remission Sensor measuring brightness variations in paper with a 0.3 mm aperture.

Remission / Brightness Sensor

  • 0.3 mm aperture
  • Brightness variation of paper
  • All grades
  • Correlates with coating variations
  • Calender blackening studies
  • White top board (see-through variation)
Tapio Porosity Sensor measuring air permeability of paper according to standard methods.

Porosity Sensor

  • Air permeability measurement
  • Permeability variations
  • According to laboratory standards (Bendtsen, Gurley, Bekk, etc.)
Tapio Technologies logo featuring a stylized "T" inside a red square and the company name in blue text.

Tapio Measurement Technologies Oy Kalkkipellontie 6, FI-02650 Espoo FINLAND

Phone: +358 40 089 1413 

Email: info@tapiotechnologies.com

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