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| Spire offers single long-pulse solar simulators Spire Corporation introduces an enhanced feature option for the line of solar simulators, which are used to test photovoltaic modules. The enhancement incorporates a very stable single long-pulse, SLP, of light during which the entire I-V measurement is performed. This feature is available on Spire's simulators, the Spi-Sun Simulator 3500 and the Spi-Sun Simulator 4600. The optional configurations are designated Spi-Sun Simulator 3500SLP and Spi-Sun Simulator 4600SLP. Customers can order simulators with either a multi-flash or new single-flash light source which features an adjustable flash duration from 10 milliseconds to 120 milliseconds. Advanced electronic control assures temporal stability during the duration of the flash to within 0.2% by means of an active control circuit that also makes efficient use of the lamp power supply. As with all Spire simulators, the units are equipped with the special spectral filters that provide a Class A spectral match from the xenon flash tubes. In addition, the single long-pulse simulators maintain Spire's Class A characterization of spatial uniformity and temporal stability. The advantages of the new single long-pulse simulator option are: - Simulator test cycle time is reduced to 15 seconds, doubling the throughput compared to a multi-flash simulator. - Measurements are highly repeatable, eliminating any flash-to-flash variations. - The voltage and current ranges have been extended over the current multi-flash simulators, from a maximum of 150V / 20A to 250V / 25A. - The long pulse improves measurement accuracy when testing certain materials such as high capacitance thin film modules or modules produced with very high efficiency silicon cells. write your comments about the article :: © 2006 Construction News :: home page |