Blade Tip Timing and Blade Tip Clearance
FOCIS - Optical system for blade vibration monitoring and blade tip clearance measurement.
FOCIS Description
Optical Sensors and Instrumentation
High temperature optical probes and laser/detector instrumentation.
Optical Sensors
Speed, Torque, and Torsional Vibration
TVS is an optical system for accurate measurement of speed, torque, and torsional vibration
TVS Details
Crack Detection
Blade crack and blade damage detection for turbine health monitoring.
More Information
Technology Development
Our research areas include stall detection, inlet distortion characterization, FOD detection, and magnetic and acoustic NDI/NDT methods.
Overview of Research Topics
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  • Blade Tip Timing and Blade Tip Clearance
  • Optical Sensors and Instrumentation
  • Speed, Torque, and Torsional Vibration
  • Crack Detection
  • Technology Development

Latest News

  • Prime Photonics to Exhibit at Apex Users Conference

    January 15, 2020 (Blacksburg, VA) – Prime Photonics will be exhibiting at the 2020 Apex Turbine Testing Technologies User Conference, February 9th-13th in Nashville, TN, at the Gaylord Opryland Resort & Convention Center in Nashville, TN.  At the conference, Prime Photonics will be demonstrating industry leading FOCIS™ hardware and sensors used for rotor blade speed and vibration measurements for the test and validation of gas turbines, compressor systems, turbochargers and other rotating equipment applications.

  • Prime Photonics is exhibiting at the Turbomachinery and Pump Symposia in Houston, Texas on September 10-12, 2019

    August 20, 2019 (Houston, Texas) – Prime Photonics is exhibiting at the 48th Turbomachinery and 35th International Pump Symposia organized by Texas A&M at the George R. Brown Convention Center in Houston, TX.

  • Prime Photonics and Virginia Tech to Host Fall 2019 PIWG Conference

    July 29, 2019 (Blacksburg, VA) – Prime Photonics and Virginia Tech will be co-hosting the Propulsion Instrumentation Working Group (PIWG) Fall 2019 Conference in Blacksburg, VA. The conference will include special team meetings on Tuesday, September 24, and Technical presentations and tours September 25 and 26 at the Skelton Conference Center and nearby Virginia Tech. This is an open and unrestricted international technical conference, open to both PIWG and non-PIWG members. To register or to find out more information about the conference and PIWG, please visit the PIWG website at

  • Prime Photonics Presents at PS&S/AA&S conference

    April 25th, 2019 (National Harbor, MD) – Today at the Propulsion Safety & Sustainment(PS&S)/Aircraft Airworthiness & Sustainment Conference(AA&S) 2019 EVI- joint conference Steve Poland, CEO for Prime Photonics, made the presentation “S-Caesar Demonstration of a Combined Optical Blade Tip Timing and Clearance Sensor”. In the talk, Mr. Poland discussed a recent hot section engine test in which Prime Photonics performed Blade Tip Timing and Blade Tip Clearance measurements on a retired cruise missile gas turbine engine. The Prime Photonics FOCIS™ high temperature optical engine probes were used in the late 2018 test to monitor rotor stage 1 of the F112 engine.

  • Prime Photonics at the 2019 Step Forward: New River Valley Conference

    March 6,2019 (Dublin, VA) – Prime Photonics Manufacturing and Quality Manager, Hilary Whiting, will be representing Prime Photonics at the 2019 Step Forward: New River Valley Conference, taking place at Volvo Trucks Customer Center on March 13th -14th, 2019. Step Forward is a professional development conference for women in manufacturing and will feature sessions including: Networking promoting Women in Manufacturing, StrengthsFinder 2.0, Reciprocity Ring, “What the Data Shows”, Executive Insights: What I Wish I Knew, and LEAD by Example. Prime Photonics would like to thank the Manufacturing Institute and Volvo Trucks for bringing this event to the New River Valley.