Pyrotechnic shocks are usually detailed in terms of a Shock Response Spectra (SRS) and are expressed in terms of acceleration (g or m/s2) and natural frequency (fn). NTS can produce true pyrotechnic shock using shaped charges or primer cord generating accelerations to 100,000g (980,000 m/s2), and frequencies of 100 Hz to 10,000 Hz. Electrodynamic exciters used for Pyroshock simulation can accept loads of up to 1000 lbs. and produce peak shock spectra up to 4000g. Shock spectra can be controlled with octave equalization.
Examples of components that might experience this shock environment include devices used in satellites and launch vehicles, as stage separation and satellite ejection often involve pyrotechnic events (e.g., explosive bolts). A second group of components requiring pyroshock testing may be those mounted in close proximity to the event or mounted on the skin of structures, such as brackets, sensors, cameras and other equipment.
With high-energy test events such as pyroshock, NTS is able to advise our clients of the best sequencing with other testing (such as vibration, temperature cycling, etc.). We also welcome clients witnessing their tests, and we carefully monitor the performance of accelerometers and other instrumentation for accurate one-time data download. Contact us today to discuss your pyroshock testing needs.
