Innovative Foreign Object Damage (FOD) Detection and Identification Technology for Military Turbine Engines
Prime Photonics was founded in 1999 and specializes in advanced sensor systems for military and industrial turbomachinery. The Foreign Object Damage (FOD) Detection System identifies and characterizes compressor rotor blade impacts during engine operation. Military gas turbines on fixed and rotary wing aircraft, and ground vehicles, are susceptible to performance-reducing FOD damage. This patented technology provides real-time on-wing diagnostics, improving operational readiness and reducing costs associated with current schedule-based visual inspection maintenance activities. A prototype was demonstrated in F402 engine testing performed May-July 2017. The company seeks engine companies and Defense program office(s) with engine diagnostic or condition-based maintenance applications for the technology.
Non-Destructive Inspection (NDI) technique for Sub-Surface Crack Characterization for Non-Ferrous Metals in Propulsion System Components
The fatigue cracking potential of a propulsion component drives inspection intervals, greatly impacting total ownership cost and operational readiness. Surface cracks are often preceded by subsurface cracking; however there are no practical solutions for performing subsurface inspections on non-ferrous materials in depot environments. This robust patent- pending technology generates three-dimensional (3D) maps of defect geometries and stress fields in non-ferrous materials, allowing the detection of subsurface cracks. With existing Fiber Optic Clearance and Identification Sensor (FOCIS) products being used for gas turbine rotor vibratory stress analysis, Prime Photonics is currently prototyping it’s 3-D Synchronous Magnetic Imaging System (3D-SMIS™) for NDI of non-ferrous materials. Our goal is to transition 3D-SMIS™ into DoD and prime contractor systems for applications that can reduce the frequency of component inspections.
Turbomachinery Distortion Characterization by Non-intrusive Measurement Methods
Filtered Rayleigh Scattering (FRS) provides a completely nonintrusive method of full annulus airflow characterization. It uniquely characterizes pressure, density and temperature as well as provides flow speed and angle. During engine operations, complex distortion profiles that cannot be mimicked in a ground test environment are experienced. There is currently no method of characterizing these profiles. FRS, once fully mature, will fill this technology gap as well as enhance ground test measurements. Unlike other current techniques, FRS proposes no obstruction to the flow nor introduce particles into the flow. The target initial platform for this technology is an advanced fighter aircraft. During the Phase I, mean velocity, temperature and pressure measurements were resolved to within acceptable limits for both uniform and distorted flows of a free jet in a laboratory environment. Prime Photonics is a technology company focused on bringing innovative products to the marketplace. Our focus areas include sensor and materials technologies for test & measurement, inspection, control and health monitoring of commercial and military equipment, structures and turbomachinery.