The oxygen permeability of the electric quantity method adopts the testing principle of pressure difference method, which is professionally used for testing the permeability of various types of carbon paper used in proton exchange membrane fuel cells.
Electricity method oxygen permeabilityTest Principle
Based on the testing principle of pressure difference method, the sample is placed between two fixtures, and a constant pressure difference is formed on both sides of the sample. Under the action of the pressure difference, gas flows from the high-pressure side through the sample to the low-pressure side. Calculate the transmittance of carbon paper based on the flow rate, sample thickness, test area, and test pressure difference.
Product Features
1. The instrument pressure difference can be adjusted within the range of 0-500Pa, with an accuracy of 0.1% FS, meeting the testing pressure difference requirements of different samples;
2. The testing range can be customized according to different sample requirements;
3. Pressure can be adjusted arbitrarily, fully automatic operation, automatic measurement and calculation of results;
4. The host is equipped with a color touch screen and does not require an external computer;
5. Built in micro printer, capable of real-time printing of test reports;
6. The upper computer software is designed according to the new version of GMP Appendix "Computerized System" and can achieve functions such as hierarchical permission management, audit tracking, electronic signature, etc. (optional);
Application field
Proton exchange membrane fuel cells - Gas permeability testing of various types of carbon paper used in proton exchange membrane fuel cells
Electricity method oxygen permeabilityTechnical Specifications
| test scope | 0~200,000 mL·mm/(cm²·h·mmHg) 0~14,701mL·mm/(cm²·hr·mmAq) |
| resolution | 0.1 mL·mm/(cm²·h·mmHg) 0.1 mL·mm/(cm²·hr·mmAq) |
| pressure range | 0~500Pa, Other customizable |
| Pressure resolution | 0.1Pa |
| pressure accuracy | 0.1%FS |
| flow range | 0~50 L/min, Other customizable |
| Traffic resolution | 1 mL/min |
| traffic accuracy | 1%FS |
| Test area | 16cm2 |
| instrument size | 410 mm×295 mm×365 mm |
| power | 100 W |
| power supply | 110~250 VAC, 50~60 Hz |