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11.发明申请公开(公告)号：US20200088518A1
公开(公告)日：2020-03-19
申请号：US16505340
申请日：2019-07-08
发明人： Daniel Endean
IPC分类号： G01C19/5614 , G01C19/5621 , G01C19/5684
摘要： A gyroscope assembly includes a sense proof mass and a compensation proof mass. The sense proof mass has a sense frequency response in a sense dimension and is configured to move in a drive dimension in response to a drive signal, and to move in the sense dimension in response to experiencing an angular velocity about a sense input axis while moving in the drive dimension. And the compensation proof mass has, in the sense dimension, a compensation frequency response that is related to the sense frequency response.
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12.发明申请公开(公告)号：US20190301865A1
公开(公告)日：2019-10-03
申请号：US16369080
申请日：2019-03-29
发明人： Keiichi YAMAGUCHI , Ryuta NISHIZAWA
IPC分类号： G01C19/5614 , G01C19/5628 , G01L1/10
摘要： A physical quantity sensor includes: a supporting member; and a sensor element supported by the supporting member, in which the sensor element includes a vibrator element, a drive signal wiring disposed on the vibrator element, and a first detection signal terminal and a second detection signal terminal disposed on the vibrator element, the supporting member includes a substrate on which the sensor element is joined, and a first detection signal wiring and a second detection signal wiring disposed on the substrate, and the first detection signal wiring and the second detection signal wiring respectively include areas that extend along a second axis intersecting with the first axis and that intersect with the drive signal wiring in a plan view as seen in a direction in which the sensor element and the substrate overlap with each other.
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公开(公告)号：US10393523B2
公开(公告)日：2019-08-27
申请号：US15307859
申请日：2015-06-11
申请人： DENSO CORPORATION
IPC分类号： G01C19/56 , G01C19/5607 , G01C19/5614 , G01C19/5628 , G01P21/00 , G01C25/00 , G01P15/125 , G01P15/08
摘要： A physical quantity sensor includes a detection unit outputting a detection signal corresponding to a vibration of a vibrating element in an angular velocity sensor, and a self-diagnostic unit self-diagnosing a detection environment of an acceleration sensor and the angular velocity sensor on a basis of the detection signal outputted by the detection unit.
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公开(公告)号：US10302431B2
公开(公告)日：2019-05-28
申请号：US15343656
申请日：2016-11-04
发明人： Takashi Aoyama , Naoki Yoshida
IPC分类号： G01C19/5642 , G01C19/5614
摘要： A physical quantity detection circuit includes: a synchronous detection circuit that performs a synchronous detection process on a detection target signal based on a detection signal, the detection target signal including a physical quantity detection signal and a leakage signal from a physical quantity detection element, the physical quantity detection element vibrating based on a drive signal to generate the physical quantity detection signal corresponding to a magnitude of a physical quantity, and the leakage signal of vibrations based on the drive signal; and a phase shift circuit that switches a phase difference between the detection signal and the detection target signal, between a first phase difference and a second phase difference that differs from the first phase difference, so that at least part of the leakage signal is output through the synchronous detection process.
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15.发明授权公开(公告)号：US10175044B2
公开(公告)日：2019-01-08
申请号：US15044332
申请日：2016-02-16
发明人： Hideo Haneda , Yasuhiro Sudo
IPC分类号： G01C19/56 , G01C19/5614
摘要： A circuit device includes a detection circuit which outputs angular velocity information, based on a detection signal from an angular velocity sensor element; and an output unit which outputs rotation number information of fixed-point notation that is obtained based on the angular velocity information. The output unit can output an integer part of the rotation number information as an integer part of the fixed-point notation, and can output a decimal part of the rotation number information as a decimal part of the fixed-point notation.
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公开(公告)号：US20180278259A1
公开(公告)日：2018-09-27
申请号：US15924835
申请日：2018-03-19
发明人： Naoki II , Noriyuki MURASHIMA
CPC分类号： H03L7/0995 , G01C19/5614 , G01C19/5776 , G01P15/097 , G01P15/14 , G01P21/00 , H03L7/081 , H03L7/091
摘要： A circuit device includes a drive circuit configured to drive a physical quantity transducer by a drive signal, a PLL circuit configured to generate a clock signal by using a drive signal as a reference signal, and a measurement circuit that includes a circuit which is operated by an operation signal based on the clock signal and performs measurement processing based on a measurement signal from the physical quantity transducer, and the PLL circuit generates the clock signal having a frequency of j×fdr≠fck/i in a case where it is set that a frequency of the drive signal is fdr, a frequency of the clock signal is fck, i is an integer of 1 or more, j is an integer of 1 or more, and a frequency of the operation signal is fck/i.
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公开(公告)号：US10072928B2
公开(公告)日：2018-09-11
申请号：US15336404
申请日：2016-10-27
IPC分类号： G01C19/5614 , H01L41/113 , G01C19/56
CPC分类号： G01C19/56 , G01C19/5614 , H01L41/1132
摘要： A vibrator element has a detection arm that performs a drive vibration in a Z-axis direction, and performs a detection vibration in an X-axis direction when an angular velocity is applied thereto The vibrator element also has first, second, third, and fourth electrode portions and first, second, third, and fourth ground electrode portions provided on a detection arm. Further, a signal generated between the first electrode portion and the first ground electrode portion and a signal generated between the second electrode portion and the second ground electrode portion are in opposite phase in a drive vibration and in phase in a detection vibration. Furthermore, a signal generated between the third electrode portion and the third ground electrode portion and a signal generated between the fourth electrode portion and the fourth ground electrode portion are in opposite phase in the drive vibration and in phase in the detection vibration.
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公开(公告)号：US09829316B2
公开(公告)日：2017-11-28
申请号：US14533578
申请日：2014-11-05
发明人： Katsuhiko Maki , Takashi Nomiya
IPC分类号： G01C19/56 , G01C19/00 , G01C19/5614 , G01C19/5776
CPC分类号： G01C19/5614 , G01C19/5776
摘要： A detection device includes: a drive circuit which receives a feedback signal from a physical quantity transducer and drives the physical quantity transducer; a detection circuit which receives a detection signal from the physical quantity transducer and detects a desired signal; and a control unit which controls switching on/off of an AGC loop in the drive circuit. The drive circuit outputs a drive signal based on a control voltage that is set by the AGC loop in an on-period of the AGC loop to the physical quantity transducer and thus drives the physical quantity transducer in an off-period of the AGC loop.
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公开(公告)号：US20150122022A1
公开(公告)日：2015-05-07
申请号：US14533578
申请日：2014-11-05
发明人： Katsuhiko MAKI , Takashi NOMIYA
IPC分类号： G01C19/5614
CPC分类号： G01C19/5614 , G01C19/5776
摘要： A detection device includes: a drive circuit which receives a feedback signal from a physical quantity transducer and drives the physical quantity transducer; a detection circuit which receives a detection signal from the physical quantity transducer and detects a desired signal; and a control unit which controls switching on/off of an AGC loop in the drive circuit. The drive circuit outputs a drive signal based on a control voltage that is set by the AGC loop in an on-period of the AGC loop to the physical quantity transducer and thus drives the physical quantity transducer in an off-period of the AGC loop.
摘要翻译： 检测装置包括：驱动电路，其从物理量传感器接收反馈信号并驱动物理量传感器; 检测电路，其接收来自所述物理量换能器的检测信号并检测期望的信号; 以及控制单元，其控制所述驱动电路中的AGC环路的接通/断开。 驱动电路基于由AGC环路的接通周期中的AGC环路所设置的控制电压向物理量传感器输出驱动信号，从而将物理量换能器驱动到AGC环路的关闭周期内。
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公开(公告)号：US06927568B2
公开(公告)日：2005-08-09
申请号：US10964869
申请日：2004-10-15
IPC分类号： G01C19/56 , G01C19/5614 , G01C19/5628 , H01L41/08 , H01L41/18 , G01B7/30
CPC分类号： G01C19/56
摘要： A rotational-rate sensor is provided which includes a detecting element, a circuit portion, an airtight container and an elastic body, in which: the synthetic resonance-frequency of a machine system of the rotational-rate sensor and the frequency of an applied rotational rate which corresponds to the difference between the resonance frequency in the direction where the detecting element is driven and the resonance frequency of the detecting element in the direction where the detecting element detects a rotational rate, are each lower than each of the resonance frequency in the direction where the detecting element is driven and the resonance frequency in the direction where the detecting element detects a rotational rate; and the cut-off frequency of the low-pass filter in the circuit portion is lower than each of the synthetic resonance-frequency and the frequency of the applied rotational rate.
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