Plane Motion Velocity Determination

Clifford Wagoner

doi:10.1117/12.953643

20 May 1973 Plane Motion Velocity Determination

Clifford Wagoner

Proceedings Volume 0034, Solving Problems in Automotive Safety Engineering and Biomechanics with Optical Instrumentation; (1973) https://doi.org/10.1117/12.953643
Event: Optical Instrumentation: A Problem Solving Tool in Automotive Safety Engineering and Bio-Mechanics, 1972, Detroit, United States

Abstract

As a preface to my presentation, I want to say a word about equipment. Like most people in industry we tend to use straight-forward, reliable equipment such as the PhotoSonics 1B and LOCAM cameras and the Vanguard Film Analyzer, believing that the advantages of more sophisticated systems are usually more than offset by the long down times required for repairs and by the increased likelihood of failure. We use relatively simple crystal controlled pulse generators for time-bases, for example, rather than real-time clocks that encode the time in some form and print it out in the gate at the center of each exposure. The pulse generators we use put out a pulse every millisecond, a double pulse every tenth time, and a triple on each hundredth. In regard to targets, we use the round, four sector, alternate yellow and black ones with which many of you are familiar. We feel this is extremely important because it's as unbiased a target as you could hope to find.

Citation Download Citation

Clifford Wagoner "Plane Motion Velocity Determination", Proc. SPIE 0034, Solving Problems in Automotive Safety Engineering and Biomechanics with Optical Instrumentation, (20 May 1973); https://doi.org/10.1117/12.953643

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KEYWORDS

Cameras

Distortion

Pulse generators

Data centers

Error analysis

Lenses

Clocks

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