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1. 发明申请

WO2008032982A1 ULTRASONIC SENSOR WITH DIFFERENT-DIRECTIONAL DIRECTIVITIES 审中-公开
标题翻译：超声波传感器具有不同的方向性
公开(公告)号：WO2008032982A1
公开(公告)日：2008-03-20
申请号：PCT/KR2007/004397
申请日：2007-09-12
申请人： HAGISONIC CO., LTD. , KIM, Byung Geuk
发明人： KIM, Byung Geuk
IPC分类号： G01S5/18
CPC分类号： G01S15/931 , G01S7/521
摘要： Disclosed is an ultrasonic sensor for detecting and dodging invaders or obstacles, by being mounted to a security alarm, an ultrasonic range finder, an industrial mobile robot, a robot cleaner and the likes. According to the present invention, the ultrasonic sensor is capable of detecting and dodging obstacles more accurately without a dead zone with only a few numbers, by forming an ultrasonic emission opening on a front of a housing in the form of an oval or rectangular slit to have different directivities according to its verticality and horizontality, applying a principle in that, when ultrasonic waves emitted from a piezoelectric diaphragm of the open ultrasonic sensor pass through the opening, the diffraction degree of waves varies depending on the wavelength of the waves and the width of the opening.
摘要翻译：公开了一种用于通过安装到安全警报器，超声波测距仪，工业移动机器人，机器人清洁器等来检测和躲避入侵者或障碍物的超声波传感器。根据本发明，超声波传感器能够通过在椭圆形或矩形狭缝的形式的壳体的前部形成超声波发射开口而能够更精确地检测和躲避障碍物，而不会出现数量少的死区，根据其垂直度和水平度具有不同的方向性，应用原理是当从开放式超声波传感器的压电振动膜发射的超声波通过开口时，波的衍射度根据波的波长和宽度而变化的开幕。

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