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11. 发明申请

US20100024557A1 Ultrasonic device for detecting direction to object 有权
标题翻译：用于检测物体方向的超声波装置
公开(公告)号：US20100024557A1
公开(公告)日：2010-02-04
申请号：US12458924
申请日：2009-07-28
申请人： Mitsuyasu Matsuura , Toshiki Isogai , Ayako Okamoto , Hiromi Ariyoshi , Yasuyuki Okuda
发明人： Mitsuyasu Matsuura , Toshiki Isogai , Ayako Okamoto , Hiromi Ariyoshi , Yasuyuki Okuda
IPC分类号： G01N29/00
CPC分类号： G01S15/931 , G01S7/52006 , G01S15/42
摘要： A ultrasonic device detecting a direction to an object includes: a transmitting element of a ultrasonic wave; first and second receiving elements; a diffraction wave phase detector; an initial phase memory for an initial phase of a diffraction wave; a sound speed detector; a phase correction amount calculator calculating a phase shift caused by a sound speed change and calculating a phase correction amount based on the phase of the diffraction wave, the initial phase and the phase shift; a phase correction element correcting a phase of the reflection wave based on the phase correction amount; and a direction detector for detecting the direction to the object based on a difference between corrected phases of the reflection wave received by the first and second receiving elements, a distance between the first and second receiving elements, and a wavelength of the transmission ultrasonic wave corresponding to a sound speed.
摘要翻译：检测到物体的方向的超声波装置包括：超声波的发送元件; 第一和第二接收元件; 衍射波相位检测器; 用于衍射波的初始相位的初始相位存储器; 声速检测器; 计算由声速变化引起的相移的相位校正量计算器，并且基于所述衍射波的相位，所述初始相位和所述相位来计算相位校正量; 相位校正元件，基于相位校正量校正反射波的相位; 以及方向检测器，用于基于由第一和第二接收元件接收的反射波的校正相位之间的差异，第一和第二接收元件之间的距离以及对应于发射超声波的波长来检测对象的方向达到声速。

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