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Tennis specification testing device

A detection device and specification technology, applied in the field of tennis specification detection devices, can solve the problem that the detection device is not displayed, and achieve the effect of specific data

Inactive Publication Date: 2016-05-04
SHANDONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After searching, there is no display of the detection device for tennis specifications

Method used

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  • Tennis specification testing device
  • Tennis specification testing device

Examples

Experimental program
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Effect test

Embodiment Construction

[0064] The present invention will be further described below in conjunction with the drawings and embodiments.

[0065] Such as figure 1 As shown, a tennis specification testing device includes a testing platform support. The testing platform support includes a base 8. A lower support 7 is installed on the base 8, and one end of the lower support 7 and the upper support 15 are inserted together. The other end of 15 is provided with a beam 1; the upper bracket 15 is perpendicular to the beam 1, a ball clamping device is provided on the beam 1, and the upper bracket 15 and the lower bracket 7 are both provided with scales, and the lower bracket 7 An anti-pressure detection device and an elasticity detection device are installed on the anti-pressure detection device, a laser rangefinder is installed on the anti-pressure detection device, an infrared detector 16 is installed on the elasticity detection device, and the laser rangefinder and the infrared detector 16 are both Connected ...

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Abstract

The invention discloses a tennis ball specification detecting device. The device comprises a detecting table support, the detecting table support comprises a base, a lower end support is arranged on the base, the lower end support is in insertion connection with one end of the upper end support, and a beam is arranged at the other end of the upper end support. The upper end support is perpendicular to the beam, a ball clamping device is arranged on the beam, scales are respectively arranged on upper end support and the lower end support, a compressive resistance detecting device and an elasticity detecting device are arranged on the lower end support, the laser range finder is arranged on the compressive resistance detecting device, an infrared detector is arranged on the elasticity detecting device, and the infrared detector and the laser range finder are respectively connected with an upper computer. The tennis ball specification detecting device overcomes dependence on a traditional 'factory specified method', and can scientifically, strictly, comprehensively and conveniently detect the specifications of tennis balls for vast tennis sport enthusiasts and provide guarantee for more scientific and stricter tennis matches and training.

Description

Technical field [0001] The invention relates to a tennis specification detection device. Background technique [0002] The tennis rules promulgated by the International Tennis Federation have clear requirements for the specifications of the game ball: round and bullet-shaped. The diameter of the ball is 6.35 ~ 6.67 cm; the weight of the ball is required: the weight should be between 2 ounces (56.7 grams) and 2 1 / 6 ounces (58.5 grams); the elasticity of the ball is required from 100 inches (254 cm) When the height of) makes a free fall on the concrete floor, the rebound height should be between 53 inches (134.62 cm) and 58 inches (147.32 cm). When 18 pounds (8.165 kg) of pressure is applied to the ball, the inward elastic deformation should be between 0.22 inches (0.559 cm) and 0.29 inches (0.737 cm), and the rebound deformation range after compression should be between 0.315 inches (0.8 cm) and 0.425 inches (1.08 cm). These two kinds of deformation data should be the average v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/08G01M5/00G01G17/00
Inventor 刘晓屹葛树林贺业志宋广林姜丽娟钟嘉奎
Owner SHANDONG NORMAL UNIV
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