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公开(公告)号：US08616061B2
公开(公告)日：2013-12-31
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
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.
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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：US08166824B2
公开(公告)日：2012-05-01
申请号：US12385714
申请日：2009-04-16
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： G01N29/32
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：US20090260422A1
公开(公告)日：2009-10-22
申请号：US12385714
申请日：2009-04-16
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
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：US20110261651A1
公开(公告)日：2011-10-27
申请号：US13158006
申请日：2011-06-10
IPC分类号： G01S15/04
CPC分类号： G01S7/521 , B06B1/0629 , G01S3/808 , G01S7/52004 , G01S15/42 , G01S15/931
摘要： An ultrasonic sensor includes a transmitting device, receiving devices arranged in an array, and a circuit device. One receiving device is configured as a reference receiving device. The circuit device includes a reference signal generator and first and second synchronous detectors. The reference signal generator generates a reference signal by using a received signal of the reference receiving device. The first synchronous detector performs synchronous detection of a received signal of one of the receiving devices based on the reference signal to detect a distance to an object. The second synchronous detector performs synchronous detection of received signals of the receiving devices except the reference receiving device based on the reference signal to detect a direction of the object.
摘要翻译： 超声波传感器包括发送装置，排列成阵列的接收装置和电路装置。 一个接收设备被配置为参考接收设备。 电路装置包括参考信号发生器和第一和第二同步检测器。 参考信号发生器通过使用参考接收装置的接收信号产生参考信号。 第一同步检测器基于参考信号执行接收装置之一的接收信号的同步检测，以检测到对象的距离。 第二同步检测器基于参考信号执行除基准接收装置之外的接收装置的接收信号的同步检测，以检测对象的方向。
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公开(公告)号：US20090168603A1
公开(公告)日：2009-07-02
申请号：US12318187
申请日：2008-12-23
申请人： Yasuyuki Okuda , Kiyonari Kojima , Teruo Oda , Akitoshi Yamanaka , Takaaki Kawai , Makiko Sugiura , Takayuki Ishikawa
发明人： Yasuyuki Okuda , Kiyonari Kojima , Teruo Oda , Akitoshi Yamanaka , Takaaki Kawai , Makiko Sugiura , Takayuki Ishikawa
CPC分类号： G01S7/521 , B06B1/0629 , G01S3/808 , G01S7/52004 , G01S15/42 , G01S15/931
摘要： An ultrasonic sensor includes a transmitting device, receiving devices arranged in an array, and a circuit device. One receiving device is configured as a reference receiving device. The circuit device includes a reference signal generator and first and second synchronous detectors. The reference signal generator generates a reference signal by using a received signal of the reference receiving device. The first synchronous detector performs synchronous detection of a received signal of one of the receiving devices based on the reference signal to detect a distance to an object. The second synchronous detector performs synchronous detection of received signals of the receiving devices except the reference receiving device based on the reference signal to detect a direction of the object.
摘要翻译： 超声波传感器包括发送装置，排列成阵列的接收装置和电路装置。 一个接收设备被配置为参考接收设备。 电路装置包括参考信号发生器和第一和第二同步检测器。 参考信号发生器通过使用参考接收装置的接收信号产生参考信号。 第一同步检测器基于参考信号执行接收装置之一的接收信号的同步检测，以检测到对象的距离。 第二同步检测器基于参考信号执行除基准接收装置之外的接收装置的接收信号的同步检测，以检测对象的方向。
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7.发明授权公开(公告)号：US08164982B2
公开(公告)日：2012-04-24
申请号：US13158006
申请日：2011-06-10
CPC分类号： G01S7/521 , B06B1/0629 , G01S3/808 , G01S7/52004 , G01S15/42 , G01S15/931
摘要： An ultrasonic sensor includes a transmitting device, receiving devices arranged in an array, and a circuit device. One receiving device is configured as a reference receiving device. The circuit device includes a reference signal generator and first and second synchronous detectors. The reference signal generator generates a reference signal by using a received signal of the reference receiving device. The first synchronous detector performs synchronous detection of a received signal of one of the receiving devices based on the reference signal to detect a distance to an object. The second synchronous detector performs synchronous detection of received signals of the receiving devices except the reference receiving device based on the reference signal to detect a direction of the object.
摘要翻译： 超声波传感器包括发送装置，排列成阵列的接收装置和电路装置。 一个接收设备被配置为参考接收设备。 电路装置包括参考信号发生器和第一和第二同步检测器。 参考信号发生器通过使用参考接收装置的接收信号产生参考信号。 第一同步检测器基于参考信号执行接收装置之一的接收信号的同步检测，以检测到对象的距离。 第二同步检测器基于参考信号执行除基准接收装置之外的接收装置的接收信号的同步检测，以检测对象的方向。
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公开(公告)号：US08578761B2
公开(公告)日：2013-11-12
申请号：US12733694
申请日：2009-03-25
申请人： Kenji Fukumura , Tetsuo Yoshioka , Tetsuo Fujii , Takaaki Kawai , Hirofumi Higuchi , Teruo Oda , Yasuyuki Okuda
发明人： Kenji Fukumura , Tetsuo Yoshioka , Tetsuo Fujii , Takaaki Kawai , Hirofumi Higuchi , Teruo Oda , Yasuyuki Okuda
IPC分类号： G01N33/00
CPC分类号： G01N27/226 , G01N33/28
摘要： A concentration sensor device includes a sensor unit, a substrate, and a sedimentation limit unit. The sensor unit detects a concentration of a specific component contained in liquid. The substrate has a face to which the sensor unit is arranged. The sedimentation limit unit is integrally arranged with the sensor unit or arranged at an upstream side of the sensor unit in a flowing direction of the liquid. The sedimentation limit unit is configured to prevent sedimentation of a foreign object on the sensor unit. The sedimentation limit unit includes a piezoelectric element to vibrate when electricity is supplied so as to promote the foreign object to be separated from the sensor unit. The substrate has a recess recessed in a thickness direction of the substrate.
摘要翻译： 浓度传感器装置包括传感器单元，基板和沉降限制单元。 传感器单元检测液体中包含的特定成分的浓度。 基板具有布置传感器单元的面。 沉降限制单元与传感器单元一体地布置或者沿着液体的流动方向布置在传感器单元的上游侧。 沉淀限制单元被配置为防止异物在传感器单元上的沉降。 沉降限制单元包括压电元件，当供电时振动，以促进异物与传感器单元分离。 基板具有在基板的厚度方向上凹陷的凹部。
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公开(公告)号：US20100235107A1
公开(公告)日：2010-09-16
申请号：US12733694
申请日：2009-03-25
申请人： Kenji Fukumura , Tetsuo Yoshioka , Tetsuo Fujii , Takaaki Kawai , Hirofumi Higuchi , Teruo Oda , Yasuyuki Okuda
发明人： Kenji Fukumura , Tetsuo Yoshioka , Tetsuo Fujii , Takaaki Kawai , Hirofumi Higuchi , Teruo Oda , Yasuyuki Okuda
CPC分类号： G01N27/226 , G01N33/28
摘要： A concentration sensor device includes a sensor unit, a substrate, and a sedimentation limit unit. The sensor unit detects a concentration of a specific component contained in liquid. The substrate has a face to which the sensor unit is arranged. The sedimentation limit unit is integrally arranged with the sensor unit or arranged at an upstream side of the sensor unit in a flowing direction of the liquid. The sedimentation limit unit is configured to prevent sedimentation of a foreign object on the sensor unit. The sedimentation limit unit includes a piezoelectric element to vibrate when electricity is supplied so as to promote the foreign object to be separated from the sensor unit. The substrate has a recess recessed in a thickness direction of the substrate.
摘要翻译： 浓度传感器装置包括传感器单元，基板和沉降限制单元。 传感器单元检测液体中包含的特定成分的浓度。 基板具有布置传感器单元的面。 沉降限制单元与传感器单元一体地布置或者沿着液体的流动方向布置在传感器单元的上游侧。 沉淀限制单元被配置为防止异物在传感器单元上的沉降。 沉降限制单元包括压电元件，当供电时振动，以促进异物与传感器单元分离。 基板具有在基板的厚度方向上凹陷的凹部。
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公开(公告)号：US07295045B2
公开(公告)日：2007-11-13
申请号：US11296464
申请日：2005-12-08
申请人： Takaaki Kawai , Junji Hayakawa
发明人： Takaaki Kawai , Junji Hayakawa
IPC分类号： H03K5/22
CPC分类号： H03K5/24
摘要： An output signal cutting-off circuit includes a first switching element, a driving circuit and a voltage-drop-signal generating circuit. When a voltage to be monitored becomes lower than a threshold voltage, a voltage-drop-signal is generated and supplied to the driving circuit. The driving circuit turns on the first switching element based on the voltage-drop-signal to thereby cut off an output signal voltage by bringing it to a ground potential. When the voltage-drop-signal disappears, the first switching element is turned off to bring the output signal to a normal state. Preferably, a second switching element for charging a capacitor and a third switching element for discharging the capacitor are used in the driving circuit. In this case, the first switching element is turned on or off based on a voltage of the capacitor.
摘要翻译： 输出信号切断电路包括第一开关元件，驱动电路和电压降信号发生电路。 当要监视的电压变得低于阈值电压时，产生电压降信号并将其提供给驱动电路。 驱动电路基于电压降信号导通第一开关元件，从而通过使其接地而切断输出信号电压。 当电压降信号消失时，第一开关元件断开，使输出信号进入正常状态。 优选地，在驱动电路中使用用于对电容器充电的第二开关元件和用于放电电容器的第三开关元件。 在这种情况下，第一开关元件基于电容器的电压而导通或截止。
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