Federal award (DEFINITIVE CONTRACT, fiscal year 2023)
Recipient: VIRGINIA POLYTECHNIC INSTITUTE & STATE UNIVERSITY
Awarding agency: Department of Transportation / Federal Railroad Administration
Funding agency: Department of Transportation / Federal Railroad Administration
Period of performance: 2022-08-12 to 2025-06-30
Current total value of award: $399991
Description: THE PURPOSE OF THIS MODIFICATION IS TO EXTEND THE PERIOD OF PERFORMANCE END DATE FROM DECEMBER 31, 2024 TO JUNE 30, 2025.  EXPERIMENT WITH DIFFERENT OPTICAL BEAM CONFIGURATIONS TO OPTIMALLY RECORD VIBRATIONS