The mass production quality inspection and grade sorting of aerospace-grade solar cell strings and multi-junction gallium arsenide battery components have strict standards of aerospace quality. Traditional ground AM1.5G testing equipment cannot simulate the real space irradiation environment, and the ground test parameters of the cell strings deviate greatly from the in-orbit working conditions. Manual inspection, single-step testing mode is inefficient, prone to human error, and the sorting standards are not unified, making it difficult to identify hidden defects, electrical mismatch, and hidden crack risks of the cell strings. Ordinary sorting equipment has a single function and cannot simultaneously complete electrical performance testing and appearance defect screening, which is very likely to cause unqualified cell strings to flow into the aerospace assembly process, resulting in abnormal in-orbit power generation, decreased mission reliability, and increased risks of aerospace projects, and has long been restricting the standardized mass production and high-reliability assembly application of space photovoltaic devices.

Based on the aerospace-grade photovoltaic detection and space solar radiation simulation field, Saifan Optoelectronics relies on twenty years of aerospace optical technology accumulation, ASTM E490-00 standard AM0 spectral fitting algorithm, high-precision transient photovoltaic testing and AI intelligent sorting architecture, and has launched the AM0 cell string automatic testing and sorting machine. It is specially adapted to the full-process mass production quality inspection of aerospace photovoltaic cell strings, with hard-core performance such as standard AM0 space spectral full-fidelity replication, IV + EL integrated synchronous detection, fully automatic unmanned testing, and AI precise intelligent sorting, to solve the industry pain points of test distortion, defect missed detection, sorting chaos, and insufficient production capacity. Ordinary sorting equipment has a single function and cannot complete electrical performance testing and appearance defect screening simultaneously, and is very likely to lead to unqualified cell strings flowing into the aerospace assembly process, causing abnormal in-orbit power generation, decreased mission reliability, and increased risks of aerospace projects. This has long been restricting the standardization mass production and high-reliability assembly application of space photovoltaic devices.

Standard AM0 space spectral, fully replicating in-orbit irradiation conditions

The equipment strictly follows ASTM E490-00 and IEC international aerospace photovoltaic testing standards, equipped with a high-precision short arc xenon lamp transient light source system, accurately replicating the space AM0 zero atmosphere spectral energy distribution, spectral matching accuracy对标ing aerospace first-level detection standards， fully covering the full-band response range of space photovoltaic devices， completely avoiding parameter deviation problems caused by ground AM1.5G spectral testing. It can truly simulate the in-orbit illumination conditions of satellites and spacecraft， accurately reproduce the in-orbit power generation performance of multi-junction gallium arsenide battery and space crystalline silicon cell strings， and the test data can be directly connected to the aerospace product acceptance standards， eliminating the detection distortion problem of ground qualified but in-orbit failure.

Equipped with a high-speed light intensity closed-loop calibration system， single flash energy stable， no spectral drift， long-term batch testing spectral consistency is extremely high， perfectly adapting to the high-precision， high-repetition aerospace cell string mass calibration requirements. Different from conventional ground testing equipment， this machine realizes the replication of space conditions from the light source bottom， ensuring that the electrical parameters， response characteristics， and power levels of each cell string are completely consistent with the real aerospace application scenarios， and is the core benchmark equipment for the compliance quality inspection of space photovoltaic devices.

Integrated photovoltaic performance testing and visual defect detection system， full-scale screening of hidden defects

The equipment integrates two systems of photovoltaic performance testing and visual defect detection， can simultaneously complete the collection of I-V electrical parameters of the cell string and the screening of EL electroluminescence defects， breaking the drawbacks of traditional equipment's itemized testing， low efficiency， and high missed detection rate. The high-precision electrical testing unit can fully analyze all core parameters of the cell string， such as open-circuit voltage， short-circuit current， peak power， fill factor， conversion efficiency， series resistance， and leakage resistance， accurately determine the electrical matching degree and power level of the cell string， and prevent the power loss of the entire array caused by single-string electrical mismatch.

Equipped with high-definition EL imaging detection module and intelligent image recognition algorithm， it can accurately capture subtle hidden cracks， soldering defects， broken grids， black spots， local failures， etc.， that are not identifiable by the naked eye， and comprehensively screen the production process flaws and reliability risks of the cell string. Dual determination based on electrical data and defect images enables comprehensive detection of battery string performance and quality, completely solving the industry problem of one-dimensional testing leading to片面 judgment and missed detection of defective products. It ensures the assembly quality and in-orbit reliability of aerospace battery strings in all aspects.

Fully automated unmanned process, compatible with efficient quality inspection for aerospace mass production

The equipment integrates an all-in-one architecture of automatic transmission， precise optical positioning， automatic alignment testing， intelligent classification and sorting， and automatic data archiving， achieving fully unmanned operations throughout the process of battery string loading， detection， determination， sorting， and unloading. Relying on high-precision optical positioning technology， it automatically adapts to different specifications of aerospace battery strings without the need for manual alignment or manual debugging， completely avoiding human operational errors and significantly improving testing and sorting efficiency and batch consistency.

The entire machine is compatible with the mass production rhythm of aerospace battery strings and can operate frequently and continuously. Compared to the traditional step-by-step manual testing mode， the detection and sorting efficiency is increased by several times， perfectly meeting the large-scale， standardized， and efficient production requirements of aerospace supporting production lines. The equipment supports stable continuous operation 24 hours a day， with low failure rate and smooth operation， balancing the extreme detection accuracy of aerospace level with the efficient production capabilities of industrial mass production， and resolving the bottleneck of aerospace product quality inspection capacity.

AI intelligent classification and sorting， precise and standardized quality grading

Equipped with a dedicated aerospace-level intelligent measurement and control system， the system incorporates specialized sorting algorithms for aerospace batteries， supporting customizable power levels， defect determination standards， and quality grade rules. It can flexibly configure sorting parameters based on project acceptance standards. The system automatically completes battery string classification， good product screening， defective product classification marking， and accurately distinguishes superior products， qualified products， defective products， and scrapped products， eliminating subjective errors in manual grading and ensuring uniform sorting standards and precise grades for each batch of battery strings. The entire process of real-time linkage and storage of test data， EL images， and sorting results automatically generates standardized aerospace inspection reports. The data can be traced， reviewed， and connected to the project acceptance system， perfectly adapting to the strict requirements of aerospace product refined quality management， batch traceability， and compliance acceptance， and helping to standardize the quality control of aerospace photovoltaic products.

Broad-spectrum aerospace compatibility， compatible with all types of space battery strings

The equipment adopts a universalized compatibility architecture， which can flexibly adapt to multiple specifications of aerospace battery strings， covering mainstream aerospace photovoltaic products such as multi-junction gallium arsenide battery strings， space-efficient crystalline silicon battery strings， and thin-film space photovoltaic modules. It can accommodate different string numbers， different sizes， and different power grades of battery strings for testing and sorting. The architecture is highly versatile and has a wide range of adaptability， covering all types of space battery string mass production detection scenarios for one equipment.

In response to the high precision， high reliability， and zero-defect core requirements of aerospace batteries， the equipment incorporates multiple self-checking and error correction mechanisms， capable of automatically completing baseline calibration， optical path calibration， and circuit compensation， effectively shielding environmental interference and equipment temperature drift influence， ensuring the stability and accuracy of long-term batch testing， fully meeting the high reliability and rigorous quality control standards of aerospace products.

Modular expansion architecture， compatible with high-level aerospace customization requirements

The equipment adopts an open modular design， with sufficient functional upgrade and customization interfaces， allowing for the expansion of high-level aerospace testing functions as needed. It can add temperature cycling coupling testing modules to achieve performance testing under space temperature variations； it can upgrade high-precision spectral subdivision modules to adapt to the fine testing of new layered aerospace batteries； it can connect to the production line MES system to achieve full-process data interconnection and intelligent control； it can expand multi-channel parallel testing functions to further improve production testing efficiency and fully cover basic quality inspection， process optimization， high-level research， and customized acceptance requirements at multiple levels.

The core components of the equipment, including the AM0 spectral optical system, the high-precision transient testing unit, and the AI defect identification and sorting algorithm, are all independently developed and controllable. The spectral replication accuracy, test stability, and defect identification accuracy rate are all fully benchmarked against imported high-end aerospace detection equipment. At the same time, it completely resolves the pain points of high prices, long delivery cycles, delayed after-sales response, difficult customization and modification, and high operation and maintenance costs of imported equipment. It possesses core advantages such as precise space spectrum restoration, integrated dual detection, fully automatic and efficient operation, precise defect sorting, and convenient operation and maintenance. It is a benchmark product for the domesticization replacement of aerospace photovoltaic detection equipment.

The manufacturer provides exclusive aerospace-level technical connection, on-site installation and commissioning, customized parameter adaptation, professional technical training, and lifelong technical support one-stop services. It deeply adapts to the acceptance standards of aerospace projects and production line conditions, significantly reducing the procurement and operation and maintenance costs of aerospace institutions' equipment, and helping the space photovoltaic industry achieve domestication, standardization, and high-quality upgrading.

Precisely replicate space conditions, laying a solid foundation for aerospace photovoltaic quality

The in-orbit reliability of aerospace photovoltaic devices stems from the extremely precise standardized detection and classification on the ground. The Sefan AM0 battery string automatic testing and sorting machine, with its standard AM0 space spectral replication, integrated precise detection of IV + EL, AI intelligent standardized sorting, fully automatic efficient operation, and aerospace-level reliable quality control, fully covers all scenarios of aerospace battery string production quality inspection, grade sorting, defect screening, process iteration, and project acceptance, providing a solid and precise detection guarantee for the high reliability, long lifespan, and stable in-orbit operation of aerospace spacecraft photovoltaic systems, and continuously empowering the high-quality development of China's aerospace photovoltaic industry.