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公开(公告)号：US08098000B2
公开(公告)日：2012-01-17
申请号：US12230039
申请日：2008-08-21
IPC分类号： H01L41/08
CPC分类号： G01S7/521
摘要： An ultrasonic sensor for detecting an object includes: a piezoelectric element having a piezoelectric body and first and second electrodes for sandwiching the piezoelectric body; an acoustic matching element having a reception surface, which receives an ultrasonic wave reflected by the object; and a circuit electrically coupled with the piezoelectric element via a wire. The piezoelectric element is embedded in the acoustic matching element so that the acoustic matching element covers at least the first electrode, a part of a sidewall of the piezoelectric element and a part of the wire between the circuit and the piezoelectric element, and the sidewall of the piezoelectric element is adjacent to the first electrode.
摘要翻译： 一种用于检测物体的超声波传感器包括：具有压电体的压电元件和用于夹持压电体的第一和第二电极; 具有接收表面的声匹配元件，其接收由所述物体反射的超声波; 以及经由导线与压电元件电耦合的电路。 压电元件被嵌入在声匹配元件中，使得声匹配元件至少覆盖第一电极，压电元件的侧壁的一部分和电路与压电元件之间的线的一部分，以及侧壁 压电元件与第一电极相邻。
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公开(公告)号：US20090054784A1
公开(公告)日：2009-02-26
申请号：US12230039
申请日：2008-08-21
IPC分类号： A61B8/14
CPC分类号： G01S7/521
摘要： An ultrasonic sensor for detecting an object includes: a piezoelectric element having a piezoelectric body and first and second electrodes for sandwiching the piezoelectric body; an acoustic matching element having a reception surface, which receives an ultrasonic wave reflected by the object; and a circuit electrically coupled with the piezoelectric element via a wire. The piezoelectric element is embedded in the acoustic matching element so that the acoustic matching element covers at least the first electrode, a part of a sidewall of the piezoelectric element and a part of the wire between the circuit and the piezoelectric element, and the sidewall of the piezoelectric element is adjacent to the first electrode.
摘要翻译： 一种用于检测物体的超声波传感器包括：具有压电体的压电元件和用于夹持压电体的第一和第二电极; 具有接收表面的声匹配元件，其接收由所述物体反射的超声波; 以及经由导线与压电元件电耦合的电路。 压电元件被嵌入在声匹配元件中，使得声匹配元件至少覆盖第一电极，压电元件的侧壁的一部分和电路与压电元件之间的线的一部分，以及侧壁 压电元件与第一电极相邻。
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公开(公告)号：US07613073B2
公开(公告)日：2009-11-03
申请号：US11797205
申请日：2007-05-01
CPC分类号： G01S15/931 , G01H11/08 , G01S7/521
摘要： An ultrasonic sensor includes a plurality of vibrating parts, a plurality of receiving elements, and a waveguide. Each of the vibrating parts vibrates when a corresponding ultrasonic wave reflected by a detection object is transmitted thereto, and receives the ultrasonic wave. Each of the elements includes corresponding one of the vibrating parts and detects the object using the corresponding ultrasonic wave. The ultrasonic wave is transmitted through the waveguide to each of the elements. The waveguide includes a first opening facing the object, a second opening, and a reflecting surface that reflects the ultrasonic wave in a direction to each of the vibrating parts. The ultrasonic wave enters through the first opening. The second opening is not viewable from the first opening. The second opening holds the elements such that the each of the vibrating parts faces a direction where the each of the vibrating parts receives the ultrasonic wave.
摘要翻译： 超声波传感器包括多个振动部件，多个接收元件和波导管。 当由检测对象反射的相应的超声波被传送到每个振动部分时，其振动，并接收超声波。 每个元件包括对应的一个振动部件，并使用相应的超声波检测物体。 超声波通过波导传输到每个元件。 波导包括面向物体的第一开口，第二开口和反射表面，该反射表面朝向每个振动部分的方向反射超声波。 超声波通过第一个开口进入。 第二个开口不能从第一个开口看到。 第二开口保持元件，使得每个振动部件面对每个振动部件接收超声波的方向。
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公开(公告)号：US20080072675A1
公开(公告)日：2008-03-27
申请号：US11902366
申请日：2007-09-20
申请人： Yasuyuki Okuda , Takahiko Yoshida , Makiko Sugiura , Kazuaki Watanabe , Tetsuo Yoshioka , Hisanaga Matsuoka
发明人： Yasuyuki Okuda , Takahiko Yoshida , Makiko Sugiura , Kazuaki Watanabe , Tetsuo Yoshioka , Hisanaga Matsuoka
IPC分类号： G01H11/08 , H01L41/08 , H01L41/187
CPC分类号： G01H11/08
摘要： An ultrasonic sensor includes an ultrasonic detecting element, an acoustic matching member, and an oscillation damping member. The ultrasonic detecting element detects an ultrasonic wave. The acoustic matching member has a receiving surface that is adapted on a side of the certain object to be exposed to a space, in which the detected body exists. The receiving surface receives the ultrasonic wave reflected by the detected body. The acoustic matching member is made of a material having an acoustic impedance larger than that of air and smaller than that of the ultrasonic detecting element. The oscillation damping member is disposed between an attachment portion and the acoustic matching member. The attachment portion is adapted for attaching the ultrasonic sensor to the certain object. The oscillation damping member damps transmission of oscillation from the certain object to the acoustic matching member.
摘要翻译： 超声波传感器包括超声波检测元件，声匹配元件和振荡阻尼元件。 超声波检测元件检测超声波。 声匹配构件具有接收表面，该接收表面适于在某一物体的一侧暴露于被检测体存在的空间。 接收表面接收被检测体反射的超声波。 声匹配构件由声阻抗大于空气的声阻抗小于超声波检测元件的材料制成。 振动阻尼构件设置在安装部分和声匹配构件之间。 附接部分适于将超声波传感器附接到该物体。 振动阻尼构件阻止从特定物体到声匹配构件的振荡传播。
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公开(公告)号：US20120174673A1
公开(公告)日：2012-07-12
申请号：US13425460
申请日：2012-03-21
申请人： Makiko Sugiura , Yasuyuki Okuda , Takaaki Kawai , Takahiko Yoshida , Hisanaga Matsuoka , Toshiki Isogai , Mitsuyasu Matsuura
发明人： Makiko Sugiura , Yasuyuki Okuda , Takaaki Kawai , Takahiko Yoshida , Hisanaga Matsuoka , Toshiki Isogai , Mitsuyasu Matsuura
IPC分类号： G01N29/04
CPC分类号： G01S7/52004 , G01S7/52 , G01S7/52006 , G01S7/521 , G01S15/003 , G01S15/876 , G01S15/931 , G01S2015/939
摘要： An ultrasonic sensor includes a transmitting device, a receiving device, and a circuit device. The circuit device determines that the receiving device receives an ultrasonic wave reflected from an object, when an output voltage of the receiving device is equal to or greater than a first threshold. The circuit device includes a humidity detection section configured to detect an ambient humidity of the transmitting and receiving devices and a threshold adjustment section configured to calculate, based on the detected ambient humidity, a sound pressure of the ultrasonic wave that is received by the receiving device after propagating over a round-trip distance between the ultrasonic sensor and the object. The threshold adjustment section reduces the first threshold, when the output voltage corresponding to the calculated sound pressure is less than a second threshold that is greater the first threshold.
摘要翻译： 超声波传感器包括发送装置，接收装置和电路装置。 当接收装置的输出电压等于或大于第一阈值时，电路装置确定接收装置接收从对象反射的超声波。 电路装置包括：湿度检测部，被配置为检测发送和接收装置的环境湿度;以及阈值调整部，其被配置为基于检测到的环境湿度来计算由接收装置接收的超声波的声压 在超声波传感器和物体之间的往返距离上传播。 当与计算出的声压相对应的输出电压小于第一阈值以上的第二阈值时，阈值调节部分减小第一阈值。
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公开(公告)号：US07497121B2
公开(公告)日：2009-03-03
申请号：US11602262
申请日：2006-11-21
IPC分类号： G01S15/93
CPC分类号： G01N29/223 , G01H11/06 , G01N29/245 , G01N2291/0421 , G01N2291/044 , G01N2291/102 , G01S7/521 , G01S7/526 , G01S15/003 , G01S15/42 , G01S2015/932 , G01S2015/939 , Y10S367/909
摘要： An ultrasonic sensor includes a sending element for sending an ultrasonic wave to an object to be detected, a receiving portion for receiving the ultrasonic wave reflected by the object, an oscillating portion that oscillates by the ultrasonic wave transmitted thereto, and a supporting portion for holding an end part of the oscillating portion. The receiving portion is exposed to a space where the object exists. The receiving portion and the oscillating portion are connected through the supporting portion such that the ultrasonic wave received by the receiving portion is transmitted to the oscillating portion through the supporting portion. The oscillating portion is separate from the receiving portion by the supporting portion.
摘要翻译： 超声波传感器包括用于向被检测物体发送超声波的发送元件，接收被物体反射的超声波的接收部，通过其发送的超声波振荡的振荡部，以及用于保持的支撑部 振荡部分的端部。 接收部分暴露于物体存在的空间。 接收部分和振荡部分通过支撑部分连接，使得由接收部分接收的超声波通过支撑部分传递到振荡部分。 振动部分通过支撑部分与接收部分分离。
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公开(公告)号：US07397167B2
公开(公告)日：2008-07-08
申请号：US11602258
申请日：2006-11-21
申请人： Makiko Sugiura , Takahiko Yoshida , Yasuyuki Okuda , Ryonosuke Tera , Hiroshi Tanaka , Yuta Hasebe
发明人： Makiko Sugiura , Takahiko Yoshida , Yasuyuki Okuda , Ryonosuke Tera , Hiroshi Tanaka , Yuta Hasebe
摘要： An ultrasonic wave generating device includes a substrate, a heat insulation layer on the substrate, a membrane heating portion on the heat insulation layer, and a membrane oscillator on the heating portion. The heating portion is electrically driven with a predetermined period, and produces heat for thermally displacing a surface of the oscillator. The oscillator receives a temperature variation with the predetermined period from the heating portion, and oscillates so as to generate ultrasonic waves.
摘要翻译： 超声波发生装置包括基板，基板上的绝热层，绝热层上的膜加热部和加热部上的膜振荡器。 加热部分以预定的周期被电驱动，并产生用于热移置振荡器表面的热量。 振荡器从加热部分接收到具有预定周期的温度变化，并振荡以产生超声波。
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公开(公告)号：US20070144261A1
公开(公告)日：2007-06-28
申请号：US11602262
申请日：2006-11-21
IPC分类号： G01N29/00
CPC分类号： G01N29/223 , G01H11/06 , G01N29/245 , G01N2291/0421 , G01N2291/044 , G01N2291/102 , G01S7/521 , G01S7/526 , G01S15/003 , G01S15/42 , G01S2015/932 , G01S2015/939 , Y10S367/909
摘要： An ultrasonic sensor includes a sending element for sending an ultrasonic wave to an object to be detected, a receiving portion for receiving the ultrasonic wave reflected by the object, an oscillating portion that oscillates by the ultrasonic wave transmitted thereto, and a supporting portion for holding an end part of the oscillating portion. The receiving portion is exposed to a space where the object exists. The receiving portion and the oscillating portion are connected through the supporting portion such that the ultrasonic wave received by the receiving portion is transmitted to the oscillating portion through the supporting portion. The oscillating portion is separate from the receiving portion by the supporting portion.
摘要翻译： 超声波传感器包括用于向被检测物体发送超声波的发送元件，接收被物体反射的超声波的接收部，通过其发送的超声波振荡的振荡部，以及用于保持的支撑部 振荡部分的端部。 接收部分暴露于物体存在的空间。 接收部分和振荡部分通过支撑部分连接，使得由接收部分接收的超声波通过支撑部分传递到振荡部分。 振动部分通过支撑部分与接收部分分离。
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公开(公告)号：US07622849B2
公开(公告)日：2009-11-24
申请号：US11712511
申请日：2007-03-01
IPC分类号： H01L41/07
CPC分类号： G10K9/122
摘要： An ultrasonic sensor composed of a substrate and a piezoelectric vibrator mounted on the substrate is advantageously used as a sensor for detecting a distance to an object located in front of an automotive vehicle. Ultrasonic waves transmitted from the sensor are reflected by the object, and the reflected waves are received by the sensor. Based on the reflected waves, the distance from the vehicle to the object is calculated. To reduce rigidity and thereby to lower a resonant frequency of the substrate to a desirable level, grooves are formed in the substrate. A thickness of the substrate is not reduced to maintain its mechanical strength against an impact force. A resonant frequency which is desirable to realize a sufficiently high directivity and sensitivity is obtained in this manner without enlarging a size of the ultrasonic sensor.
摘要翻译： 作为用于检测到位于机动车辆前方的物体的距离的传感器，有利地使用由基板和安装在基板上的压电振动器构成的超声波传感器。 从传感器发射的超声波被物体反射，反射波被传感器接收。 基于反射波，计算从车辆到物体的距离。 为了降低刚性，从而将基板的谐振频率降低到期望的水平，在基板中形成凹槽。 不降低基板的厚度以保持其抵抗冲击力的机械强度。 以这种方式获得期望实现足够高的方向性和灵敏度的共振频率，而不扩大超声波传感器的尺寸。
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公开(公告)号：US07490517B2
公开(公告)日：2009-02-17
申请号：US11488140
申请日：2006-07-18
申请人： Takahiko Yoshida , Makiko Sugiura , Yasuyuki Okuda , Yuta Hasebe
发明人： Takahiko Yoshida , Makiko Sugiura , Yasuyuki Okuda , Yuta Hasebe
IPC分类号： G01H5/00
摘要： A sensor attachment structure includes a sound receiving member for receiving an ultrasound, an ultrasonic sensor attached to the sound receiving member. The ultrasonic sensor includes a semiconductor substrate having first and second surfaces opposite to each other and a substrate recess portion recessed from the first surface of the semiconductor substrate so as to form a membrane in the semiconductor substrate. Furthermore, a cap member is located between the sound receiving member and the semiconductor substrate to cover the second surface of the semiconductor substrate. In addition, the cap member has a first surface bonded to the sound receiving member, and a second surface that is bonded to the second surface of the semiconductor substrate at an outer periphery section of the membrane while having a gap between the cap member and the membrane.
摘要翻译： 传感器附接结构包括用于接收超声波的声音接收构件，附接到声音接收构件的超声波传感器。 超声波传感器包括具有彼此相对的第一和第二表面的半导体衬底和从半导体衬底的第一表面凹陷的衬底凹部，以在半导体衬底中形成膜。 此外，盖构件位于声音接收构件和半导体衬底之间以覆盖半导体衬底的第二表面。 此外，盖构件具有接合到声音接收构件的第一表面和在膜的外周部分处接合到半导体衬底的第二表面的第二表面，同时在盖构件和盖构件之间具有间隙 膜。
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