Review and Perspective on the Researches of Floor Impact Sound

Jeong, JeongHo

doi:10.5050/ksnve.2019.29.4.477

Cited by 7 publications

(1 citation statement)

References 39 publications

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“…They suggested using LAmax as the primary acoustic descriptor for rubber ball sounds. Jeong conducted a comparative study on the subjective responses to rubber ball impact sounds under different conditions [3,4]. Girdhar et al [5,6] and Lee, et al [7] measured the impact force of rubber balls falling on different floor components using force sensors and conducted a comparative analysis.…”

Section: Introductionmentioning

confidence: 99%

The calibration device research for assessing the impact exposure level of rubber balls in architectural acoustics

Li,

Yan,

et al. 2024

J. Phys.: Conf. Ser.

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In order to accurately measure the impact exposure level of rubber balls used in architectural acoustics, a calibration device is designed based on a force sensor, signal analyzer, programmable stepper motor and Infinite Impulse Response (IIR) filter. A weighing sensor with a range of 200 kg is selected to match the range of impact forces of rubber balls. The sensor is installed on a specially designed metal base plate of a rubber ball measuring fixture and connected to the signal analyzer. The rubber ball is dropped from a predetermined height in a free-fall manner to impact the sensor, generating an impact waveform. The force exposure level is then calculated by using software algorithms built into the device. The accuracy and reliability of the calibration device are evaluated by conducting repeated measurements on rubber balls and comparing the results with a known standard force exposure level curve. The experimental results demonstrate that the calibration device can consistently and stably measure the force exposure level of rubber balls, showing consistency with the known standard values. However, due to limitations such as a limited variety of measured objects and insufficient measurement repetitions, further research will be conducted to increase the number of tested rubber balls and enhance the device’s capabilities. This will provide technical support for the further development and application of the device.

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