Internal Research and Development (IRAD) activities at SSC facilitate the development of new technologies to meet specific technology needs of NASA at SSC through technology partnerships. One way of accomplishing this goal is through the Dual Use Technology Development; the purpose of this activity is to identify technology partnerships that will meet the goal of developing technology to meet a specific NASA need at SSC. This goal will be accomplished by selecting partners who will cooperatively share in the development costs as well as the risks assocaited with technology development which meets a specified NASA need.
The Dual Use Program was designed to develop technologies that meet a defined NASA need as well as have the potential to become a commercial product. All proposals must clearly identify the specific technical NASA need at the John C. Stennis Space Center (SSC) or technologies that address the Space Technology Roadmap areas that could be applied at SSC and are pertinent to the overall Space Technology Programs.
The main focus area for this solicitation at SSC is to develop technologies that facilitate Rocket Propulsion Testing and ensure the integrity and safety of the rocket propulsion test facilities. The following sections provide greater details relating to some needs in these areas. However, proposals are not limited to these topics.
Rocket Propulsion Test Technologies
Mechanical Systems Technology Needs as well as Sensor Technology Needs
Helium Recovery Technology
Nuclear Thermal Propulsion System Testing
Innovative Thermal Materials
Energy Harvesting
Facility Improvement Areas
","parentProgram":{"ableToSelect":false,"acronym":"IRAD","isActive":true,"programId":87,"responsibleMd":{"canUserEdit":false,"locationEdit":false,"organizationRolePretty":"","organizationTypePretty":""},"title":"Center Independent Research & Development","acronymOrTitle":"IRAD"},"parentProgramId":87,"programId":159,"responsibleMd":{"organizationId":4910,"organizationName":"Mission Support Directorate","acronym":"MSD","organizationType":"NASA_Mission_Directorate","canUserEdit":false,"locationEdit":false,"organizationRolePretty":"","organizationTypePretty":"NASA Mission Directorate"},"responsibleMdOffice":4910,"title":"Center Independent Research & Development: SSC IRAD","acronymOrTitle":"SSC IRAD"},"description":"Rocket engine flight certification ground testing requires high-speed video recording that can capture essential information for NASA. This need is particularly true in the event of a mishap, when investigations into the underlying cause ensue. The current operational imaging system at SSC has poor resolution and records to VHS tapes that are no longer commercially available. The test bed project developed a high-speed High Dynamic Range (HDR) imaging capability using two boresighted cameras to demonstrate what is achievable with a single camera. This project will also lay the foundation for other Rocket Propulsion Test high-speed recording initiatives as well as rocket engine and launch initiatives.
High-speed video recording of rocket engine tests has several challenges. A single image contains both extremely bright and extremely dark regions. The bright regions are due to plume emissions and bright reflections and the dark regions are weakly illuminated solid structures. High-speed video cameras do not have sufficient dynamic range to properly expose both bright and dark areas without partially saturating due to the limited bits (typically 8-10) available. Saturating on the bright side will wash out all bright areas making it impossible to distinguish bright detail and likewise saturating on the dark side will blacken out all dark areas making it impossible to see into the shadows and distinguish any dark detail. Rocket motor testing also contains high-speed transient events that require high frame rate cameras and the scenes contain complex three-dimensional test articles and plume formations that are difficult to capture with a simple two-dimensional image. In addition, this difficult test environment is harsh and subject to large acoustic emissions, vibration and heat. If a test anomaly occurs there is an added risk of debris or explosion. During this project, two high speed HD color video cameras were boresighted using a beam splitter to produce a HDR video. Successful high speed HDR video was acquired on a scene containing bright objects approximately 10,000 times brighter than closely situated dim objects. The type of data is useful for simulating potential single camera based implementations.
","benefits":"The technologies developed are extensible to other NASA high dynamic range imaging needs including launch monitoring and space-based rover and robotics missions.
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