"Dynamic characteristic testing of photovoltaic modules: Steady-state equipment cannot simulate the sudden increase shock from 1000W/m² to 1500W/m², resulting in distorted test data." "Weathering impact test of materials: Traditional equipment requires a cumulative irradiation of 2000 hours, extending the project cycle by 6 months." "Simulation of photochemical instantaneous reactions: Continuous light exposure cannot capture nanosecond-level reaction processes." "Difficult production of scientific research achievements" - In scenarios such as dynamic performance testing, weathering shock tests, and instantaneous response research, the pain points of "inability to simulate sudden changes in strong light, long testing cycles, and insufficient instantaneous accuracy" have once plunged countless enterprises and research institutions into a predicament of "invalid data, lagging progress, and high costs".
Saifan Optoelectronics has been deeply engaged in optoelectronic technology for 20 years. Based on the 7IS series, it has launched the 7IS-5050-3A-MC large-amplitude 3A-level pulsed solar simulator with great fan. With the three core advantages of "3.2m×5.0m ultra-large radiation area + IEC 60904-9 3A-level full indicators + pulse steady-state dual-mode switching", it perfectly meets the strict testing requirements of instantaneous strong light, dynamic impact and rapid cycling. Today, this "pulsed light weapon" has served over 260 high-end customers worldwide, increasing the efficiency of photovoltaic dynamic testing by 8 times, shortening the weathering impact testing cycle of materials by 70%, and achieving a 98% success rate in capturing instantaneous reactions in scientific research. It has become the "preferred equipment" for pulsed light testing.
I. Dynamic Characteristic testing of Photovoltaic Modules: 3.2m×5.0m large radiation area, pulse mode captures the response to sudden changes in strong light
Mr. Li, the R&D director of a leading photovoltaic enterprise, was once worried about the dynamic performance testing of components We need to simulate natural scenarios such as cloud cover and sudden strong light rise (for example, the instantaneous impact from 1000W/m² to 1500W/m²). Traditional steady-state simulators have a slow response speed (≥1 second), cannot capture the instantaneous power fluctuations of components, and the test data deviates from the actual outdoor working conditions by more than 15%, resulting in poor matching of the developed smart inverters. The market return rate exceeds 8%." What's more troublesome is that the splicing error in the segmented testing of giant components further distorts the dynamic parameter evaluation.
After the introduction of the Saifan 7IS-5050-3A-MC, the problem of dynamic testing was easily solved. The core highlight of this device is the 3.2m×5.0m ultra-large radiation area + pulse steady-state dual-mode switching - no need for segmentation, it can cover the 3.2m×5.0m giant component at one time. The light intensity response time in pulse mode is ≤1ms, and it can accurately simulate the instantaneous strong light sudden change within the range of 0-2000W/m² Perfectly reproduce the outdoor dynamic lighting scene. Even more hardcore is that all 3A-level indicators are met: spectral matching degree in pulse state is A + level (0.875-1.125), light intensity uniformity is A level (≤±3%), and pulse stability is A level (single pulse light intensity fluctuation ≤±1%), fully meeting the IEC 60904-10 dynamic testing standard.
"Now, the dynamic response test of the components is completed in one go, with the instantaneous power fluctuation capture error ≤2%, and the consistency with the outdoor measured data exceeds 95%. The matching problem of the smart inverter has been completely solved, and the return rate has dropped from 8% to 0.3%." " Engineer Li introduced that the equipment supports free adjustment of pulse width (10μs-1s) and repetition frequency (0.1Hz-100Hz), and can simulate the dynamic lighting characteristics of different regions, shortening the research and development cycle by three months. The cost advantage is equally significant: "Previously, the annual electricity cost for 8 steady-state devices and a dynamic signal generator was 350,000 yuan, and the testing efficiency was low." Now, one 7IS-5050-3A-MC can achieve dual-mode testing, saving 50% of electricity, reducing annual electricity costs by 175,000 yuan, increasing dynamic testing efficiency by 8 times, and adding an annual output value of over 120 million yuan.
Ii. Material weather resistance impact test: 2.8m×4.2m format, pulse irradiation shortens the test cycle by 70%
Mr. Wang, a materials engineer at a certain automotive OEM factory, once encountered a "cycle predicament" in weathering impact testing: "We test the entire panel materials for car exterior trim and need to simulate impact scenarios such as sudden strong light exposure in the desert and intense sun exposure after heavy rain. Traditional steady-state equipment requires a cumulative irradiation of 2,000 hours to achieve equivalent aging effects, and the single batch test cycle is as long as two months, which seriously affects the progress of new car development." " More importantly, steady-state irradiation cannot simulate instantaneous high-temperature shock, making it difficult to detect potential hazards such as material cracking and discoloration in advance.
The pulse technology of Saifan 7IS-5050-3A-MC precisely addresses the pain points of the cycle. The equipment is customized with a 2.8m×4.2m ultra-large radiation area. In pulse mode, the peak irradiance can reach 3000W/m², which is three times that of natural sunlight. Through the "high-energy pulse superposition" technology, the equivalent aging test cycle can be compressed from 2000 hours to 600 hours, a reduction of 70%. Meanwhile, the instantaneous temperature shock generated by pulse irradiation (up to 80℃) can precisely reproduce the material force scenarios under extreme weather conditions, exposing potential hazards such as cracking and discoloration in advance, and increasing the material qualification rate from 82% to 99.5%.
The core performance is even more astonishing: The equipment adopts imported 2000W ultra-high pressure short-arc xenon lamps, covering the full wavelength range of 300nm to 1100nm. The peak irradiance in the ultraviolet band reaches 1000W/m², and the light intensity stability in the pulse state is ≤±0.8% per 1000 pulses. In conjunction with a dual-circulation water-cooling system, it can operate stably in an environment ranging from -40 ℃ to 60℃, meeting the strict weather resistance requirements of the automotive, aviation and other industries. Previously, the import of pulse equipment cost 16 million yuan, with a delivery period of 7 months. The 7IS-5050-3A-MC customized model saves 8 million yuan, with delivery within 45 days. The new car development cycle is shortened by 6 months, and the annual new sales volume exceeds 30,000 units. Engineer Wang gave a thumbs-up.
Iii. Research Instantaneous Reaction Simulation: 220㎡ coverage, nanosecond-level response capture of photochemical processes
Professor Zhang from the School of Chemistry at a certain university was once worried about the simulation of photochemical instantaneous reactions: "We are studying the nanosecond reaction process of photocatalytic water splitting. Traditional continuous light equipment cannot capture the instantaneous intermediate products, and the experimental data is ambiguous. We haven't published a top journal paper in five years." What is more troublesome is that large-scale pilot-scale platforms require uniform pulsed light. The insufficient uniformity caused by the splicing of traditional small-spot equipment makes the pilot-scale data unusable.
The research customization model of Saifan 7IS-5050-3A-MC has immediately broken the deadlock. The equipment adopts a "high-power xenon lamp pulse array + distributed uniform light design", with a single unit capable of covering a 220-square-meter pilot platform. In pulse mode, the light uniformity reaches 96%, and the parallelism of experimental data is increased from 60% to 98%. The pulse response time is as low as 10μs, which can precisely capture nanosecond-level reaction intermediate products. Combined with the spectral synchronous acquisition system, it can achieve millisecond-level linkage of "illumination - detection".
Now we have successfully captured three key intermediate products, made breakthroughs in the research of reaction mechanisms, published four top-tier journal papers last year, applied for seven national patents, and the project has been smoothly industrialized. Professor Zhang particularly praised the flexible control capability of the equipment: "The pulse width, frequency, and light intensity can be independently programmed, and it can also be seamlessly integrated with equipment such as reaction vessels and mass spectrometers. Experiments that previously required eight people to operate can now be completed by just one person." More surprising in energy consumption and maintenance: The annual electricity cost for 45 traditional devices is 300,000 yuan, while for 1 7IS-5050-3A-MC, it is only 50,000 yuan, saving 250,000 yuan in electricity costs annually. In pulse mode, the lifespan of the xenon lamp is extended to 1,500 hours, and the maintenance workload is reduced by 80%.
Iv. Core Technology Unveiling: Why Can 7IS-5050-3A-MC Balance "Wide Range" and "Pulse Precision"?
The core competitiveness of the Saifan 7IS-5050-3A-MC large-span 3A-level pulsed solar simulator stems from four breakthrough technologies:
3A Pulse steady-state dual-mode architecture: It adopts the "7th generation spectral fitting algorithm + pulse drive module", seamlessly switching between steady-state and pulse modes, both meeting the IEC 60904-9 3A-level standard. In the pulse state, the fluctuation of a single pulse light intensity is ≤±1%, ensuring the accuracy of dynamic testing.
High-speed pulse drive technology: Independently developed constant current pulse drive module, current rise time ≤5μs, supports pulse width of 10μs-1s and repetition frequency freely adjustable from 0.1Hz to 100Hz, peak irradiance can reach 3000W/m², meeting the instantaneous strong light requirements of different scenarios.
Ultra-large radiation pulse uniform light system: Equipped with a 3.5m×6.0m ultra-large integrating sphere (PTFE reflectivity ≥99.5%) + aspheric condenser. After 250,000 optical simulations, it achieves "no divergence of pulse spots and no distortion at the edges", with a 3.2m×5.0m area uniformity of ≤±3%.
Extreme environment adaptation design: Military-grade aluminum alloy body + IP65 protection level, dual circulation water cooling system temperature control accuracy ±0.1℃, equipped with 1000Hz high-sensitivity light intensity/spectrum dual sensors, combined with AI adaptive calibration algorithm, ensuring long-term stable operation in pulse mode.
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