Position detection with micro whistles
Position detection with micro whistles
复制标题
使用微哨子进行位置检测
DOI：
10.1109/transducers.2013.6626923
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
W. Schomburg
中科院分区：
文献类型：
--
作者：
J. Ibarguen;R. Lewandowski;C. Gerhardy;W. Schomburg
本文描述了一种不配备任何电子设备的机械驱动微哨的设计和检测。当被激活时，微型哨子会在可听范围之上产生超声波音调。在近距离记录中的一组3个或更多的麦克风该音调和哨声的位置是根据声音信号到达不同麦克风的时间差来计算的。从理论上讲，获得一个波长(1.7厘米)的精度是可能的。微哨由热塑性塑料薄膜超声热压成型而成，其总尺寸约为1厘米。在实验中，在2m×2m的范围内对哨声的位置进行了测量，测量精度小于10 cm。
This paper describes the design and detection of mechanically actuated micro whistles not equipped with any electronics. When actuated, the micro whistle generates an ultrasonic tone above the audible range. A set of 3 or more microphones in the near record this tone and the position of the whistle is calculated from the time differences of the arrivals of the acoustic signals at the different microphones. Theoretically it is possible to get an accuracy of one wave length (1.7 cm). The micro whistles are fabricated by ultrasonic hot embossing of thermoplastic foils at low-cost and their overall size is approximately 1 cm. In experiments the positions of whistles up to now were measured in a 2 m × 2 m area with an accuracy of less than 10 cm.