This general-purpose sensor is commonly used for a wide variety of experiments such as studying the swing of a pendulum, measuring the speed of a rolling object or measuring the speed of colliding objects.
Parallax error: For an object passing within 1 cm of the detector, with a velocity less than 10 m/s, the difference between the true and effective length is less than 1 mm Infrared source: Peak at 800 nm
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