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Line-Scan Motion Measurement

Many motions of interest occur too quickly for typical cameras to capture. However, if the motion occurs in a single dimension, it can be imaged using a high-speed line-scan camera. Unlike a typical camera, a line-scan camera contains only a single row of pixels, but it can read out those pixels extremely quickly. Using a line-scan camera that can operate at frequencies of up to 79 kHz, we have imaged the response of a piezoelectric bimorph to a step change in voltage. Following the voltage change, the bimorph resonates at a frequency of 200 Hz,