Detect the electrical performance of photovoltaic cells in the absence of light, such as reverse saturation current, series resistance, parallel resistance, and other parameters, which can reflect the internal structure and material quality of the cell. Evaluate the leakage of batteries under dark conditions and their response characteristics to weak light, providing a basis for predicting the performance of photovoltaic cells in practical applications.
Dark field testerMain product parameters
| light source lifetime Voltage range, Current range | Voltage range: 5V~30V~72V~200V Current range: 5A~15A~25A~40A | Voltage ranges: 5V ~ 30V ~ 72V ~ 200V Current ranges: 5A ~ 15A ~ 25A ~ 40A |
| test accuracy Accuracy | Voltage ≤ 0.2%; Current ≤ 0.2% | Voltage ≤ 0.2% Current ≤ 0.2% |
| sampling frequency Frequency | 35K | 35K |
| measurement parameters Parameters | Isc,Jsc,Uoc,FF,Eta,Pmpp,Impp,Jmpp,Vmpp,Rs 和 Rsh,IRev 等 | Isc, Jsc, Uoc, FF, Eta, Pmpp, Impp, Jmpp, Vmpp, Rs, Rsh, IRev, etc. |
| Repetitive accuracy Repeatability | ≤0.15% | ≤0.15% |
| Test time Pulse duration | 100ms | 100ms |
| Testable battery Measurable cell | Conventional polycrystalline Perc、Topcon、BC、 Heterojunction, CIGS, GaAs, CdTe and other battery components | Conventional polysilicon, PERC , TOPCon , BC , HJT, CIGS, GaAs, and CdTe cells |