T&A (Transmittance Analyzer)

T&A (Transmittance Analyzer) is an ultra-sensitive transmission rate measuring system.

Water vapor transmission rate measurement of the world’s highest sensitivity at a rate of 10-7g/m2 /day.

OLED performance degrades due to water vapor and oxygen, making barrier materials that protect in water vapor transmission at 10-6g/m2/day required.
OLED performance degrades due to water vapor and oxygen, making barrier materials that protect in water vapor transmission at 10-6g/m2/day required.
This system provides massive support in the flexible film development indispensable in current development of OLED displays as well as product quality control.
Absolute value is measured in a short amount of time through the world’s highest sensitivity with highly reliable traceability ensured. This is the result of T&A for which a patent was acquired through joint research by AIST(National Institute of Advanced Industrial Science and Technology).

T&A (Transmittance Analyzer) is an ultra-sensitive transmission rate measuring system.

Water vapor transmission rate measurement of the world’s highest sensitivity at a rate of 10-7g/m2 /day.
OLED performance degrades due to water vapor and oxygen, making barrier materials that protect in water vapor transmission at 10-6g/m2/day required.
This system provides massive support in the flexible film development indispensable in current development of OLED displays as well as product quality control.
Absolute value is measured in a short amount of time through the world’s highest sensitivity with highly reliable traceability ensured. This is the result of T&A for which a patent was acquired through joint research by AIST(National Institute of Advanced Industrial Science and Technology).

Features

  1. Measures the rate of water vapor transmission at the world’s highest sensitivity.

    Enables water vapor transmission measurement at a rate of 10-7g/m2 /day.

    Realizes a differential pressure method through application of ultra-high vacuum technology (JIS K 7126-1 compliant).

  2. Absolute value calibration via a standard conductance device (patented) ensures traceability and enables absolute value measurement.
  3. Short measurement preparation time Graphically displays transmission rate in real time.
  4. Significantly reduces running costs Measures transmission rate of gasses and gas mixtures other than water vapor.

Measures the rate of water vapor transmission at the world’s highest sensitivity

Measures absolute water vapor transmission at a rate of 10-7g/m2 /day.
Ultra-high vacuum technology-equipped differential pressure measurement combined with reduction of background water vapor makes it possible to measure water vapor transmission rate at the world’s highest sensitivity.

A large amount of water vapor is absorbed in the surface of walls of chambers. Reducing background water vapor in the chamber is vital for measuring the rate when lower than 10-5g/m2day.
Baking via the heater and the installed series of two turbomolecular pumps improve pump down speed. Measurement of 10-7g/m2/day is enabled through maximum reduction of the background water vapor in the chamber.

Primary gas:water vapor(6.8kPa)

Temperature:40℃

Test pieces:10-6g/m2/day equipment,125μm heigh-berrier film

Absolute amount calibration (Patent no.: 6281915)

Uses a standard conductance element calibrated at AIST(National Institute of Advanced Industrial Science and Technology ). This element enables absolute amount calibration of a mass analyzer. This element enables introduction of an arbitrary absolute amount of water vapor or other gas to the mass analyzer.
Performing absolute amount calibration on the mass analyzer enables highly reliable measurement.

Graphs transmission rate in real time

Use the WVTR Viewer app (Windows only) to simplify measuring.

  • Displays WVTR(Water Vapor Transmission Rate) graphs in real time
  • Logs data automatically
  • Add notes to graphs, print screens, etc.

Short measurement preparation time

In some cases, conventional measurement preparation methods require around a month. T&A employs differential pressure using ultra-high vacuum technology to dramatically reduce the time required to only around 24 hours.

Meas. Prep Time(days) Measurement Time(days) Total(days)
Conventional models 21 2 23
T&A 1 2 3

Significantly reduces running costs

With competitor’s conventional methods, removal of outgas such as water absorbed in the sample chamber before measurement requires costly ultra-pure nitrogen gas to be flushed through for about three weeks. This gas can cost several thousand USD per case, greatly increasing running costs.
The differential pressure method uses ultra-high vacuum technology to eliminate the need of costly gas, resulting in greatly reduced running costs and drastic increase of equipment productivity.
Increasing productivity further reduces operation costs such as equipment and maintenance.