SU1136819A1 - Method of determining the game properties of sport ground surface for playing ball - Google Patents
Method of determining the game properties of sport ground surface for playing ball Download PDFInfo
- Publication number
- SU1136819A1 SU1136819A1 SU823496002A SU3496002A SU1136819A1 SU 1136819 A1 SU1136819 A1 SU 1136819A1 SU 823496002 A SU823496002 A SU 823496002A SU 3496002 A SU3496002 A SU 3496002A SU 1136819 A1 SU1136819 A1 SU 1136819A1
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- SU
- USSR - Soviet Union
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- ball
- determining
- horizontal
- platform
- game
- Prior art date
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Abstract
СПОСОБ ОПРЕДЕЛЕНИЯ ИГРОВЫХ КАЧЕСТВ ПОВЕРХНОСТИ СПОРТИВНОЙ ПЛОЩАДКИ ДЛЯ ИГРЫ С МЯЧОМ , включающий определение горизонтальной составл ющей скорости м ча после отскока от поверхности площадки и сравнение ее с эталонным значением, отличающийс тем, что, с целью упрощени определени качества поверхности площадки, опJ / редел ют коэффициент трени м ча по поверхности площадки при перемещении его по этой поверхности с использованием рамки , в которой установлены м чи с упругим нат гом, и соединенного с рамкой измерительного прибора, -а горизонтальную составл ющую скорости м ча определ ют по формуле u U-l,75V-f, где u-горизонтальна составл юща скорости м ча после отскока от поверхности площадки; UH V-эталонные значени соответственно горизонтальной и вер- икальной составл ющих скорости м ча до соударени с площадкой; f -коэффициент трени м ча по поверхS . ности площадки при перемещении его по этой поверхности.A METHOD FOR DETERMINING THE GAME QUALITIES OF THE SURFACE OF A SPORTS FIELD FOR A GAME WITH A BALL, including determining the horizontal component of the speed of the ball after a rebound from the surface of the platform and comparing it with a reference value, characterized in that, to simplify the determination of the quality of the platform surface, they determine friction of the ball over the surface of the platform when moving it over this surface using a frame in which elastic tension balls are installed and connected to the frame of the measuring device, -a Horizontal velocity component of the ball is determined by the formula u U-l, 75V-f, u-where the horizontal component of the velocity after the bounce of the ball on the surface pad; UH V-reference values, respectively, of the horizontal and vertical components of the velocity of the ball before the impact with the platform; f is the friction coefficient of the ball over the surface. area when moving it over this surface.
Description
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Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU823496002A SU1136819A1 (en) | 1982-10-01 | 1982-10-01 | Method of determining the game properties of sport ground surface for playing ball |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU823496002A SU1136819A1 (en) | 1982-10-01 | 1982-10-01 | Method of determining the game properties of sport ground surface for playing ball |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1136819A1 true SU1136819A1 (en) | 1985-01-30 |
Family
ID=21030662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU823496002A SU1136819A1 (en) | 1982-10-01 | 1982-10-01 | Method of determining the game properties of sport ground surface for playing ball |
Country Status (1)
Country | Link |
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SU (1) | SU1136819A1 (en) |
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1982
- 1982-10-01 SU SU823496002A patent/SU1136819A1/en active
Non-Patent Citations (1)
Title |
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1. Скородумова А. П. и др. Анализ игры на площадках с различным покрытием. В сб. «Теннис, М., «Физкультура и спорт 1977, с. 18-21. * |
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