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公开(公告)号：US10976340B2
公开(公告)日：2021-04-13
申请号：US16210005
申请日：2018-12-05
IPC分类号： G01P15/125 , G01D5/24 , G01P1/00 , G01P15/08
摘要： An electronic measuring device for measuring a physical parameter includes a differential analogue sensor formed from two capacitances—an excitation circuit of the differential analogue sensor providing to the sensor two electrical excitation signals which are inverted—a measuring circuit which generates an analogue electrical voltage which is a function determined from the value of the sensor, and a circuit for compensating for a possible offset of the sensor, which is formed from a compensation capacitance, which is excited by its own electrical excitation signal. The excitation circuit is arranged in order to be able to provide to an additional capacitance of the compensation circuit its own electrical excitation signal having a linear dependence on the absolute temperature with a determined proportionality factor in order to compensate for a drift in temperature of an electrical assembly of the measuring device comprising at least the compensation capacitance.
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2.发明授权Electronic drive circuit for a MEMS type resonator device and method for actuating the same 有权用于MEMS型谐振器装置的电子驱动电路及其驱动方法公开(公告)号：US09194703B2
公开(公告)日：2015-11-24
申请号：US14242992
申请日：2014-04-02
IPC分类号： H03B5/30 , G01C19/5712 , G01C19/5776
CPC分类号： G01C19/5712 , G01C19/5776 , H03B5/30
摘要： An electronic circuit for driving a resonator of a MEMS-type resonator device is provided. The resonator includes a mass connected to a spring and a damping element, an actuation element for actuating the mass via an actuation signal, and a detection element for detecting motion of the mass. The electronic circuit includes a conversion means connected to the detection element to supply a mass oscillation derivative signal, a means of comparing the derivative signal amplitude and a reference amplitude for supplying a control signal, and a decision unit for supplying a digital actuation signal. The actuation signal includes rectangular pulses determined on the basis of the derivative signal and of the control signal to adapt the mass oscillation amplitude according to the reference amplitude.
摘要翻译： 提供了一种用于驱动MEMS型谐振器装置的谐振器的电子电路。 谐振器包括连接到弹簧和阻尼元件的质量块，用于通过致动信号致动质量块的致动元件，以及用于检测质量块的运动的检测元件。 电子电路包括连接到检测元件以提供质量振荡微分信号的转换装置，用于提供控制信号的导数信号幅度与参考振幅的比较装置，以及用于提供数字致动信号的判定单元。 致动信号包括基于导数信号和控制信号确定的矩形脉冲，以根据参考幅度调整质量振荡幅度。
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公开(公告)号：US20190178909A1
公开(公告)日：2019-06-13
申请号：US16210005
申请日：2018-12-05
IPC分类号： G01P15/125 , G01P15/08 , G01D5/24
摘要： An electronic measuring device for measuring a physical parameter includes a differential analogue sensor formed from two capacitances—an excitation circuit of the differential analogue sensor providing to the sensor two electrical excitation signals which are inverted—a measuring circuit which generates an analogue electrical voltage which is a function determined from the value of the sensor, and a circuit for compensating for a possible offset of the sensor, which is formed from a compensation capacitance, which is excited by its own electrical excitation signal. The excitation circuit is arranged in order to be able to provide to an additional capacitance of the compensation circuit its own electrical excitation signal having a linear dependence on the absolute temperature with a determined proportionality factor in order to compensate for a drift in temperature of an electrical assembly of the measuring device comprising at least the compensation capacitance.
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公开(公告)号：US11467225B2
公开(公告)日：2022-10-11
申请号：US16296581
申请日：2019-03-08
摘要： A method of determining an absolute angle of a magnetic field includes receiving a first digital measurement value Bx of a first magnetic field component indicating intensity of the magnetic field along a first axis; receiving a second digital measurement value Bz of a second magnetic field component indicating the intensity of the magnetic field along a second axis, orthogonal to the first axis; determining absolute values for the first and second magnetic field components; and determining the angle of the magnetic field with respect to the first or second axis. The angle is determined so that the angle is derivable from the value of arcsin of Bz or of its approximation, when the absolute value of Bz≤ the absolute value of Bx, and derivable from the value of arccos of Bx or of its approximation, when the absolute value of Bz> the absolute value of Bx.
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公开(公告)号：US09767034B2
公开(公告)日：2017-09-19
申请号：US14708787
申请日：2015-05-11
IPC分类号： G06F12/08 , G06F12/0891 , G06F5/06 , G06F5/12
CPC分类号： G06F12/0891 , G06F5/06 , G06F5/12 , G06F2212/1028 , G06F2212/1044 , G06F2212/45
摘要： The present invention concerns a method of operating a first-in first-out memory (9) arranged to store measurement data samples measured by a plurality of data measurement sensors (1, 3, 5), which can operate at various sampling rates. The oldest measurement data sample in the memory (9) is arranged to be read first before the newer measurement data samples. The method comprises: receiving measurement data samples from at least two data measurement sensors (1, 3, 5); and saving the received measurement data samples in the memory (9). Each of the measurement data samples saved in the memory is associated with a tag which is also saved in the memory (9) and which identifies the data measurement sensor (1, 3, 5) which measured the respective measurement data sample.
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6.发明授权Electronic circuit for measuring rotational speed in a MEMS gyroscope and method for actuating the circuit 有权用于测量MEMS陀螺仪中的转速的电子电路和用于致动电路的方法公开(公告)号：US09528831B2
公开(公告)日：2016-12-27
申请号：US14552891
申请日：2014-11-25
IPC分类号： G01C19/5776 , G01C19/567
CPC分类号： G01C19/567 , G01C19/5776
摘要： The electronic circuit measures angular speed in a gyroscope, which includes a mass connected to a spring and a damping element, an actuation capacitor for actuating the mass and a detection capacitor for detecting motion of the mass. The electronic circuit includes a measurement resistor, which is connected to the moving mass and has a variation in resistive value equal to the oscillation frequency of the mass. The resistor is polarized to supply a measurement signal, which includes a carrier signal in phase with the oscillation of the mass and an angular speed signal phase shifted by π/2 relative to the carrier signal The measurement signal is supplied to an integration unit clocked by a clocking signal phase shifted by π/2 relative to the carrier signal and originating from the drive circuit. The angular speed signal is demodulated at the integration unit output.
摘要翻译： 电子电路测量陀螺仪中的角速度，其包括连接到弹簧和阻尼元件的质量，用于致动质量的致动电容器和用于检测质量块的运动的检测电容器。 电子电路包括测量电阻，其连接到移动质量块，并具有等于质量的振荡频率的电阻值的变化。 电阻器被极化以提供测量信号，其包括与质量的振荡同相的载波信号和相对于载波信号偏移π/ 2的角速度信号相位。测量信号被提供给由时钟由 时钟信号相位相对于载波信号移位π/ 2并源自驱动电路。 角速度信号在积分单元输出处被解调。
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7.发明授权公开(公告)号：US09952262B2
公开(公告)日：2018-04-24
申请号：US14721129
申请日：2015-05-26
摘要： The physical parameter measurement method is performed using an electronic circuit (1) with a resistive sensor (2). The resistive sensor includes two resistors (R1, R2) mounted in series, whose connection node connected to a moving mass (M), is connected to a first input of an amplifier-comparator (3). A second input of the amplifier-comparator receives a reference voltage. One output of the amplifier-comparator is connected to a logic unit (4), which provides a digital output signal (OUT). A digital-to-analogue converter (5) provides a measurement voltage (Vdac), as a function of a digital signal provided by the logic unit, to the first resistor (R1) in a first phase of a measurement cycle, whereas the second resistor (R2) is polarized by a polarization voltage, and to the second resistor in a second phase, whereas the first resistor is polarized by a polarization voltage via a switching unit.
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