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Field Measurement of Windshield Surface Wear
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Language:
English
Abstract
An instrument is described which permits the measurement of scattered light on windshields in cars in full daylight. It presents the intensities of the scattered light as a diagram and calculates two indices, which can be associated with the most prominent types of wear, i.e. impact of small stones and wiper damage.
The instrument is easy to operate and permits inspection of a large number of windshields in a short time. Measurements on 700 vehicles indicate a linear increase in wear due to impact of small stones with mileage and a more-than-linear increase of wiper damage. Vehicles of identical mileage can have very different values depending on the type of use.
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Authors
Citation
Timmermann, A. and Gehring, G., "Field Measurement of Windshield Surface Wear," SAE Technical Paper 861361, 1986, https://doi.org/10.4271/861361.Also In
References
- ALLEN, M.J. Automobile windshields - surface deterioration American Journal of Optometry 46 1969 594 598
- ALLEN, M.J. Windscreen dirt and surface damage effects Australien Road Research 5 1974 6 7 19
- DIETZEL, K. Untersuchungen zur Bestimmung der Kratzfestigkeit Farbe und Lack 78 1972 8 713 723
- TIMMERMANN, A. Sichtbehinderung durch gealterte Helmvisiere Zeitschrift für Verkehrssicherheit, TÜV Rheinland 31 1985 3 117 121
- TIMMERMANN, A. GEHRING, G. Oberflächenschäden an Windschutzscheiben Zeitschrift für Verkehrssicherheit, TÜV Rheinland 32 1986 1 31 35
- WILLUMEIT, H.P. Sichtbeeinträchtigungen durch Windschutzscheiben mit hohem Streulichtanteil Sicht aus Kraftfahrzeugen, TÜV Rheinland 1980 147 163