Media.Player

String Vibration Frequency Altering Shape

技术优势

Easy to change the string vibration frequenciesCan be applied in manufacturing strain gagesPurely mechanical way to generate exact string vibration frequency

技术应用

musical acoustics, force sensing through vibration analysis

详细技术说明

USF inventors have developed a method to actively change the tension of a string to change its free vibration frequency. This is achieved in a purely mechanical fashion by utilizing a specialized kinetic shape. The kinetic shape is attached to an instrument string. A predefined weight or spring is applied to the shape, which when rotated produces a predicted tension onto the string. The shape can apply different tensions to the string depending on its orientation. When the string is plucked it vibrates at a frequency generating a sound frequency. A prototype device has been constructed to illustrate the concept of the musical kinetic shape. The prototype is controlled by a computer and can be easily programmed to rotate the kinetic shape into a desired position to produce specified and exact notes. By moving the platform and plucking the string, songs can be played using the unique and novel instrument.

*Abstract

The University of South Florida has invented a novel method to vary string vibration frequency.

国家/地区

美国