The Standards and Calibration Laboratory (SCL) is honored to receive the Best Paper Award at the National Conference of Standards Laboratories International (NCSLI) Symposium 2017 held on August 13-17, 2017 in Maryland, USA. The NCSLI Symposium is a prestigious international conference with participants from the national laboratories, testing laboratories, metrology industry and academia from around the world. This is the fifth time that the SCL has received the Best Paper Awards in international journals or conferences.

The awarded paper presented a novel technique developed by the SCL, namely the Stationary Counting Method, for the calibration of the frame rate of high speed digital video recorders. By using a special synchronous counter designed by the SCL and applying the stroboscopic effect, practical measurement problems of frame rate determination of a high speed digital recorder can be solved instantly and accurately. In the paper, the calibration process of a high speed camera with frame rate up to 1000 frames per second has been demonstrated with an expanded measurement uncertainty of 6.3 x 10^-5 fps only. The proposed method can also be used to find the time duration of the video recorded by a digital camera, as well as the occurrence of skipped or extra frames of the captured video. The target devices can be applied in high speed digital cameras, smartphones, closed circuit televisions (CCTV) and car cameras, etc.