Thin film oxygen transmittance tester is an oxygen permeability test instrument that can be professionally used for plastic films, composite films, metal foils, aluminum foils, sheets, rubbers and related materials with high barrier properties. This kind of instrument can also be used as oxygen permeability meter, oxygen permeability testing system, oxygen permeability tester, oxygen resistance performance testing instrument, oxygen barrier performance tester, oxygen permeability tester and so on.
In general, the instruments that can be used for the oxygen transmittance of thin films can be divided into two principles, the isobaric method (i.e., the coulometric method) and the differential pressure method. Here, we take the instrument of the Coulomb electric power method as an example, and mainly introduce the technical characteristics of the thin film oxygen transmittance tester.
Introduction to the test principle of thin film oxygen transmittance tester:
Based on the Coulomb oxygen analysis sensor and isobaric test principle, the pre-treated specimen is clamped between the test chambers, oxygen or air flows on one side of the film, high-purity nitrogen flows on the other side of the film, oxygen molecules diffuse through the film to the high-purity nitrogen on the other side, and are carried to the sensor by the flowing nitrogen, and the oxygen transmission rate and other results are calculated by analyzing the oxygen concentration measured by the sensor.
Technical characteristics of the thin film oxygen transmittance tester
Taking the C206H model instrument as an example, the instrument is equipped with a PPB-level coulomb oxygen sensor of Labthink's new scientific and technological achievements, which can obtain a lower test limitExtremely long service life, three times longer than conventional Coulometric oxygen sensors. The overall design of the oxygen permeability meter adopts a new rainbow bridge test chamber, which adopts 360° airflow circulation and constant temperature technology, and the temperature stability is betterThe test chamber is equipped with a high-precision humidity sensor to monitor and record humidity changes in real time. Efficient six-cavity design, independent six sets of 50cm2 standard area test chambers, is three times the number of test chambers of traditional oxygen permeability detection instruments, the same test cycle, the number of completed samples increased from 2 to 6, efficient test design is very suitable for scientific research units, university laboratories and third-party testing units to carry out multi-sample testing, greatly saving testing time, improving operation efficiency. The instrument is controlled by a 12-inch touch tablet with Windows system, embedded with LabThink industrial computer, and the host is equipped with a tablet computer to control it more conveniently. The intelligent warehouse cover is automatically opened and closed, the sound and light reminder, the test has an automatic mode, the temperature and humidity of the test are entered, and the test is opened with one key, and the test is fully automatic. Overall, the first-class thin film oxygen transmittance tester C206H is smarter, more novel and easier to operate!