IGOID Research Group, University of Castilla-La Mancha, 45071 Toledo, Spain.
School of Industrial and Aerospace Engineering, University of Castilla-La Mancha, 45071 Toledo, Spain.
Sensors (Basel). 2020 Mar 18;20(6):1688. doi: 10.3390/s20061688.
Assessing and keeping control of the mechanical properties of sport surfaces is a relevant task in sports since it enables athletes to train and compete safely and under equal conditions. Currently, different tests are used for assessing athlete- and ball-surface interactions in artificial turf pitches. In order to make these evaluations more agile and accessible for every facility, it is important to develop new apparatus that enable to perform the tests in an easier and quicker way. The existing equipment for determining the vertical ball behavior requires a complex and non-easily transportable device in which the ball must be fixed to the upper part of the frame in a very precise position by means of a magnet. The rebound height is determined by capturing the acoustic signal produced when the ball bounces on the turf. When extended tests are conducted, the time required to evaluate a single field is too high due to the non-valid trials. This work proposes a novel methodology which allows to notoriously decrease the time of testing fields maintaining the repeatability and accuracy of the test method together with a compact device for improving its mobility and transport. Simulations and experiments demonstrates the repeatability and accuracy of the results obtained by the proposed device, which decreases the non-valid trials and notoriously reduces the time for field evaluation.
评估和控制运动表面的机械性能是运动中的一项重要任务，因为它使运动员能够在安全和平等的条件下训练和比赛。目前，在人造草皮球场上，有不同的测试用于评估运动员和球与表面的相互作用。为了使这些评估对每个场地更加灵活和易于使用，开发新的仪器来以更简单和快捷的方式进行测试非常重要。现有的用于确定垂直球行为的设备需要一个复杂且不易运输的装置，其中球必须通过磁铁以非常精确的位置固定在框架的上部。反弹高度通过捕捉球在草皮上反弹时产生的声信号来确定。当进行扩展测试时，由于无效试验，评估单个场地所需的时间太长。这项工作提出了一种新的方法，通过保持测试方法的可重复性和准确性，同时使用紧凑的设备来提高其机动性和便携性，显著减少了测试场地的时间。模拟和实验证明了所提出设备获得的结果的可重复性和准确性，减少了无效试验，并显著减少了场地评估的时间。
