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公开(公告)号：US4574639A
公开(公告)日：1986-03-11
申请号：US506314
申请日：1983-06-21
Applicant: Roger W. Ward
Inventor： Roger W. Ward
CPC classification number: G01N9/002 , G01N2009/006
Abstract: Fluid density measuring apparatus and method for directly measuring fluid density or indirectly measuring pressure, temperature, acceleration, flow velocity, differential pressure and other parameters affecting the apparatus. The apparatus includes a generally rigid hollow housing having openings through which fluid may flow to the interior of the housing, and a vibratory single-ended tuning fork mounted in the housing. The apparatus also includes circuitry for causing the tines of the tuning fork to resonate, for example, 180 degrees out of phase in a transverse direction, with the frequency of the tines varying with variation in the density of the fluid surrounding the tines. Circuitry is also included for determining the frequency at which the tuning fork tines resonate. When the density of the fluid into which the housing is placed changes, the frequency of vibration of the tines of the tuning fork is caused to change to provide a measure of the density change.
Abstract translation: 用于直接测量流体密度或间接测量压力，温度，加速度，流速，压差等影响装置的流体密度测量装置和方法。 该装置包括具有开口的大致刚性的中空壳体，流体可以通过该开口流到壳体的内部，以及安装在壳体中的振动单端音叉。 该装置还包括用于使音叉的尖齿在横向上相互谐振例如180度异相的电路，其中尖齿的频率随着围绕尖齿的流体密度的变化而变化。 还包括电路以确定音叉谐振的频率。 当放置壳体的流体的密度发生变化时，使音叉的齿的振动频率发生变化，从而提供密度变化的量度。
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公开(公告)号：US4535638A
公开(公告)日：1985-08-20
申请号：US538171
申请日：1983-10-03
Applicant: Errol P. EerNisse , Roger W. Ward
Inventor： Errol P. EerNisse , Roger W. Ward
Abstract: A method and apparatus for measuring force or other parameters and temperature. The apparatus includes an oscillator and a vibratory element, such as a quartz crystal, which is caused to resonate by the oscillator at two frequencies f.sub.1 and f.sub.2 selected from the fundamental frequency and its overtone frequencies of the vibratory element. The vibratory element is selected so that the two frequencies f.sub.1 and f.sub.2 both vary with variation in force (or other parameter) applied to the element and with variation in temperature of the element, and so that the magnitude or scale factor of variation for frequency f.sub.1 is different from that for frequency f.sub.2. The apparatus also includes a detection device for detecting the frequencies f.sub.1 and f.sub.2 and for producing signals representing the frequency variation of the two frequencies relative to a reference frequency, and a processor for processing the signals produced by the detector device for determining the force (or other parameter) and temperature to which the vibratory element is subjected.
Abstract translation: 用于测量力或其他参数和温度的方法和装置。 该装置包括振荡器和诸如石英晶体的振动元件，其被振荡器以从振动元件的基频和其泛音频率中选出的两个频率f1和f2谐振。 选择振动元件使得两个频率f1和f2都随着施加到元件的力（或其他参数）的变化以及元件的温度变化而变化，并且使得频率f1的变化的幅度或比例因子 与频率f2不同。 该装置还包括用于检测频率f1和f2并用于产生表示相对于参考频率的两个频率的频率变化的信号的检测装置，以及用于处理由检测器装置产生的用于确定力的信号的处理器（或 其他参数）和振动元件所承受的温度。
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公开(公告)号：US5012151A
公开(公告)日：1991-04-30
申请号：US406168
申请日：1989-09-12
Applicant: Errol P. EerNisse , Roger W. Ward
Inventor： Errol P. EerNisse , Roger W. Ward
Abstract: A resonator assembly comprises a rigid support and a rigid crystal which are rigidly connected along linear segments which have one or more matched thermal characteristics. In a particular embodiment, a thermally matched resonator assembly comprises a Z-cut quartz crystal support, a quartz crystal resonator having an active region and including a crystalline structure oriented relative to X-, Y- and Z-crystallographic axes, which X- and Y-crystallographic axes define an X-Y crystallographic plane; and a rigid connector structure for rigidly connecting the resonator to the support along a segment of a line of a plane parallel to or including the X-Y crystallographic plane, which segment extends across a surface of the resonator and is spaced from the center of the active region of the resonator. A method of mounting a crystal which has the aforementioned crystalline structure to a Z-cut quartz support comprises: selecting a chord on a face of the crystal, which chord is a segment of a line of an X-Y plane intersecting the face of the crystal away from the center of an active region of the crystal; and bonding the crystal of the Z-cut quartz support along the length of the chord.
Abstract translation: 谐振器组件包括刚性支撑件和刚性结构，其刚性地沿着具有一个或多个匹配的热特性的线性段连接。 在特定实施例中，热匹配谐振器组件包括Z切割石英晶体支撑件，具有有源区域并且包括相对于X，Y和Z晶轴定向的晶体结构的石英晶体谐振器，其X射线和/ Y-晶轴定义了XY晶体平面; 以及刚性连接器结构，用于沿着平行于或包括XY结晶平面的平面的线的线段将谐振器刚性地连接到支撑件，该线段延伸越过谐振器的表面并且与有源区域的中心间隔开 的谐振器。 将具有上述晶体结构的晶体安装到Z切割石英支架的方法包括：在晶体的表面上选择和弦，该弦是与晶体表面相交的XY平面的线的一段 从晶体的活性区域的中心; 并且沿着弦的长度粘合Z切割的石英支撑体的晶体。
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公开(公告)号：US4644803A
公开(公告)日：1987-02-24
申请号：US797599
申请日：1985-11-13
Applicant: Roger W. Ward
Inventor： Roger W. Ward
CPC classification number: G01N9/002 , G01N2009/006
Abstract: Fluid density measuring apparatus and method for directly measuring fluid density or indirectly measuring force, acceleration, flow velocity, differential pressure and other parameters affecting the apparatus. The apparatus includes a bellows and a generally rigid hollow housing having openings through which fluid may flow to the interior of the housing, and a vibratory single-ended tuning fork mounted in the housing. The apparatus also includes circuitry for causing the tines of the tuning fork to resonate, for example, 180 degrees out of phase in a transverse direction, with the frequency of the tines varying with variation in the density of the fluid surrounding the tines. Circuitry is also included for determining the frequency at which the tuning fork tines resonate. When the density of the fluid into which the housing is placed changes, the frequency of vibration of the tines of the tuning fork is caused to change to provide a measure of the density change.
Abstract translation: 用于直接测量流体密度或间接测量影响装置的力，加速度，流速，压差等参数的流体密度测量装置和方法。 该装置包括波纹管和大致刚性的中空壳体，其具有开口，流体可通过该开口流到壳体的内部，以及安装在壳体中的振动单端音叉。 该装置还包括用于使音叉的尖齿在横向上相互谐振例如180度异相的电路，尖齿的频率随着围绕尖齿的流体密度的变化而变化。 还包括电路以确定音叉谐振的频率。 当放置壳体的流体的密度发生变化时，使音叉的齿的振动频率发生变化，从而提供密度变化的量度。
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5.发明授权Pressure/temperature transducer with improved thermal coupling and enhanced transient response 有权压力/温度传感器具有改善的热耦合和增强的瞬态响应
公开(公告)号：US6131462A
公开(公告)日：2000-10-17
申请号：US213133
申请日：1998-12-18
Applicant: Errol P. EerNisse , Lon J. Perry , Roger W. Ward , Robert B. Wiggins
Inventor： Errol P. EerNisse , Lon J. Perry , Roger W. Ward , Robert B. Wiggins
CPC classification number: G01L19/0092 , G01L9/0022
Abstract: A transducer pressure crystal having improved thermal coupling with the environment external to a pressure housing in which the crystal is disposed. A cylindrical major portion of the side wall of the pressure crystal is located immediately adjacent an inner wall of a chamber within the pressure housing, separated therefrom only by dimensional tolerances sufficient to ensure that the crystal is surrounded by pressure-transmitting fluid exposed to pressure from the external environment. The thermal time constant of the transducer for external temperature changes is significantly decreased. The time constant of the transducer for temperature changes in the pressure-transmitting fluid produced by rapid pressure changes is similarly decreased. A thin, electrically insulating element may optionally be disposed between the crystal side wall and the inner wall to preclude electrical grounding of the crystal to the housing. The electrically insulating element may comprise a discrete film, such as a high temperature plastic, or an insulating layer on the inner wall of the pressure housing. Various embodiments of the present invention are disclosed, including different crystal and interior pressure housing configurations. In one embodiment, both pressure and temperature crystals are deployed in the fluid-filled chamber.
Abstract translation: 一种换能器压力晶体，其具有与其中设置晶体的压力壳体外部的环境的热耦合。 压力晶体的侧壁的圆柱形主要部分紧邻压力壳体内的腔室的内壁，其与其分离，仅通过足以确保晶体被暴露于来自压力的压力的压力传递流体包围的尺寸公差 外部环境。 传感器外部温度变化的热时间常数显着降低。 用于通过快速压力变化产生的压力传递流体中温度变化的换能器的时间常数也同样降低。 薄的电绝缘元件可以可选地设置在晶体侧壁和内壁之间，以防止晶体与壳体的电接地。 电绝缘元件可以包括分立的膜，例如高温塑料，或在压力壳体的内壁上的绝缘层。 公开了本发明的各种实施例，包括不同的晶体和内部压力外壳构造。 在一个实施例中，将压力和温度的晶体都部署在流体填充的室中。
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Patent Agency Ranking
公开(公告)号：US4936147A
公开(公告)日：1990-06-26
申请号：US269985
申请日：1988-11-10
Applicant: Errol P. EerNisse , Roger W. Ward
Inventor： Errol P. EerNisse , Roger W. Ward
CPC classification number: G01L9/0022 , G01L9/085
Abstract: A sensor apparatus includes a pressure sensor, a reference device and a temperature sensor collocated within a common environment. The reference device and the temperature sensor are constructed to have temperature response times matched to the temperature response time of the pressure sensor to compensate for temperature gradients produced either by external heating or by pressure-volume heating.
Abstract translation: 传感器装置包括压力传感器，参考装置和在公共环境中配置的温度传感器。 参考装置和温度传感器被构造成具有与压力传感器的温度响应时间相匹配的温度响应时间，以补偿通过外部加热或通过压力 - 体积加热产生的温度梯度。
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7.发明授权
公开(公告)号：US4412345A
公开(公告)日：1983-10-25
申请号：US289353
申请日：1981-08-03
Applicant: S. Thomas Workman , John L. Chambers , Myron A. Pugh , Roger W. Ward
Inventor： S. Thomas Workman , John L. Chambers , Myron A. Pugh , Roger W. Ward
IPC: G01N23/207 , G01N23/20
CPC classification number: G01N23/207
Abstract: An apparatus and method for precisely measuring the angles of cut of singlend doubly rotated cuts of quartz crystal blanks on a high volume production basis.
Abstract translation: 用于在大批量生产的基础上精确测量石英晶体坯的单和双旋转切割的角度的装置和方法。
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公开(公告)号：US5231880A
公开(公告)日：1993-08-03
申请号：US822611
申请日：1992-01-15
Applicant: Roger W. Ward , Robert B. Wiggins
Inventor： Roger W. Ward , Robert B. Wiggins
IPC: G01L9/00
CPC classification number: G01L9/0022
Abstract: A pressure transducer including a first pressure crystal, a second temperature crystal, a third reference crystal and associated electronics. All three crystals resonate in the thickness-shear mode.
Abstract translation: 一种压力传感器，包括第一压力晶体，第二温度晶体，第三参考晶体和相关电子元件。 所有三种晶体在厚度剪切模式下共振。
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9.发明授权Method of manufacturing crystal resonators having low acceleration sensitivity 失效制造具有低加速度灵敏度的晶体谐振器的方法
公开(公告)号：US5022130A
公开(公告)日：1991-06-11
申请号：US456554
申请日：1989-12-26
Applicant: Errol P. EerNisse , Roger W. Ward , O. Lew Wood
Inventor： Errol P. EerNisse , Roger W. Ward , O. Lew Wood
CPC classification number: H03H9/19 , H03H3/04 , Y10T29/42 , Y10T29/49004
Abstract: In a process of producing crystal resonators in which the direction and magnitude of the gamma vector is substantially the same for each resonator, a method of altering the resonator during the process to change the resonator mass, shape, or electrode placement so as to reduce the gamma vector magnitude of each crystal. This alteration may be done by adding mass, removing mass, or both adding and removing mass, or by positioning the electrodes to selectively position the electric field in the crystal, all in order to move the location of the active region of vibration and thereby reduce the gamma vector.
Abstract translation: 在制造其中伽马矢量的方向和幅度对于每个谐振器基本相同的晶体谐振器的过程中，在改变谐振器质量，形状或电极放置的过程中改变谐振器的方法是为了减少 每个晶体的伽马矢量幅度。 这种改变可以通过添加质量，去除质量或添加和去除质量，或者通过定位电极来选择性地将电场定位在晶体中，以便移动有源区域的振动的位置，从而减少 伽马矢量。
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公开(公告)号：US4935658A
公开(公告)日：1990-06-19
申请号：US218282
申请日：1988-07-13
Applicant: Errol P. EerNisse , Roger W. Ward , O. Lew Wood
Inventor： Errol P. EerNisse , Roger W. Ward , O. Lew Wood
Abstract: In a process of producing crystal resonators in which the direction and magnitude of the gamma vector is substantially the same for each resonator, a method of altering the resonator during the process to change the resonator mass, shape, or electrode placement so as to reduce the gamma vector magnitude of each crystal. This alteration may be done by adding mass, removing mass, or both adding and removing mass, or by positioning the electrodes to selectively position the electric field in the crystal, all in order to move the location of the active region of vibration and thereby reduce the gamma vector.
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