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81. 发明授权

US06198275B1 Electronic circuit for automatic DC offset compensation for a linear displacement sensor 失效
标题翻译：用于线性位移传感器的自动直流偏移补偿的电子电路
公开(公告)号：US06198275B1
公开(公告)日：2001-03-06
申请号：US09003774
申请日：1998-01-07
申请人： Ronald J. Wolf , Martin James Lynch
发明人： Ronald J. Wolf , Martin James Lynch
IPC分类号： G01B700
CPC分类号： F02D11/106 , F02D41/2432 , F02D41/2474 , G01D3/02 , G01D3/022 , G01D3/0365 , G01D5/145
摘要： An electronic circuit for automatically compensating for errors in the output signal of a displacement sensor. The electronic circuitry includes an analog to digital converter for converting an analog output signal from a linear displacement type sensor. The digital output signal from the sensor is processed by a microcontroller which automatically compensates for errors in the output signal. Ideal values, stored in an electronic memory, are used for compensation.
摘要翻译：一种用于自动补偿位移传感器的输出信号中的误差的电子电路。电子电路包括用于转换来自线性位移型传感器的模拟输出信号的模数转换器。来自传感器的数字输出信号由微控制器进行处理，微控制器自动补偿输出信号中的错误。存储在电子存储器中的理想值用于补偿。

82. 发明授权

US5917320A Detection of passing magnetic articles while periodically adapting detection threshold 失效
标题翻译：检测通过的磁性物品，同时周期性调整检测阈值
公开(公告)号：US5917320A
公开(公告)日：1999-06-29
申请号：US847703
申请日：1997-04-28
申请人： P. Karl Scheller , Ravi Vig , Jay M. Towne , Hitoshi Yabusaki
发明人： P. Karl Scheller , Ravi Vig , Jay M. Towne , Hitoshi Yabusaki
IPC分类号： G01B7/00 , G01B7/30 , G01D3/02 , G01D5/14 , G01D5/244 , G01D5/245 , G01P3/488 , G01R33/02 , G01V3/08 , H03K5/08 , H03K17/95 , H03M1/30 , G01P3/48 , G01B7/14 , G01P3/489
CPC分类号： G01D3/02 , G01D5/145 , G01D5/24476 , G01D5/2448 , G01V3/081 , H03M1/303
摘要： A method for detection of passing magnetic articles which includes an initial step of sensing an ambient magnetic field and generating a voltage, Vsig, proportional to the magnetic field. A threshold voltage is generated as a percentage of the peak-to-peak voltage of Vsig. The method further includes the step of generating a proximity detector output voltage that becomes one binary level when Vsig rises to exceed the threshold voltage and another binary level when Vsig falls to below the threshold voltage. The threshold voltage is periodically updated to remain the percentage, within a predetermined tolerance, of the peak-to-peak voltage of Vsig in response to changes that may occur in the peak voltages of Vsig. In one embodiment, the threshold voltage is at a first level corresponding to a first percentage of the peak-to-peak voltage of Vsig when Vsig exceeds the threshold voltage and is at a second level corresponding to a second percentage of the peak-to-peak voltage of Vsig when Vsig is less than the threshold voltage.
摘要翻译：用于检测通过磁性制品的方法，其包括感测周围磁场并产生与磁场成比例的电压Vsig的初始步骤。产生阈值电压作为Vsig的峰 - 峰电压的百分比。该方法还包括以下步骤：当Vsig升高到超过阈值电压时，产生接近检测器输出电压，该电压变为一个二进制电平，当Vsig下降到阈值电压以下时，产生另一个二进制电平。周期性地更新阈值电压，以便在Vsig的峰值电压中可能发生的变化的情况下，保持在Vsig的峰 - 峰电压的预定容限内的百分比。在一个实施例中，当Vsig超过阈值电压时，阈值电压处于对应于Vsig的峰 - 峰电压的第一百分比的第一电平，并且处于对应于峰 - 峰电压的第二百分比的第二电平，当Vsig小于阈值电压时，Vsig的峰值电压。

83. 发明授权

US5650719A Detection of passing magnetic articles while periodically adapting detection thresholds to changing amplitudes of the magnetic field 失效
标题翻译：检测通过的磁性制品，同时周期性地调整检测阈值以改变磁场的振幅
公开(公告)号：US5650719A
公开(公告)日：1997-07-22
申请号：US587407
申请日：1996-01-17
申请人： Kristann L. Moody , Ravi Vig , P. Karl Scheller , Jay M. Towne , Teri L. Tu
发明人： Kristann L. Moody , Ravi Vig , P. Karl Scheller , Jay M. Towne , Teri L. Tu
IPC分类号： G01B7/00 , G01D3/02 , G01D5/14 , G01D5/244 , G01D5/245 , G01V3/08 , H03K17/95 , H03M1/30 , G01P3/48 , G01P3/489
CPC分类号： G01D5/24476 , G01D3/02 , G01D5/145 , G01D5/2448 , G01V3/081 , H03M1/303
摘要： A Hall transducer produces a signal Vsig. Threshold voltages V.sub.Pth and V.sub.Nth are generated at the beginning, t.sub.update, of each of a succession of update time intervals, of 64 pulses in Vsig, to be fixed percentages respectively of the peak to peak voltage in Vsig. A proximity-detector binary output voltage is high when Vsig exceeds threshold voltage V.sub.Pth and low when Vsig is below threshold voltage V.sub.Nth. Signals V.sub.Pold and V.sub.Nold, generated by first and second DACs, are equal to the first positive and negative peaks in Vsig after each time t.sub.update initiating the start of a successive interval. Signals V.sub.Pnew and V.sub.Nnew, simultaneously generated by third and fourth DACs, are equal to the greatest positive and negative peak voltages in Vsig during the interval ending at t.sub.update. Counters present their count to the first and second DACs that count pulses from a clock for tracking and holding +/- peaks in Vsig. After each time t.sub.update, a pulse in a signal Vupdt is generated if at time t.sub.update V.sub.Nnew lies outside the range. V.sub.Nold -v to V.sub.Nold +v of if V.sub.Nnew lies outside the range V.sub.Nold -v to V.sub.Nold +v, where v is an incremental DC bias voltage. Vupdt resets the counters so that during the succeeding update time interval the threshold voltages V.sub.Pth and V.sub.Nth have the fixed percentages of the updated threshold voltages V.sub.Pnew -V.sub.Nnew.
摘要翻译：霍尔传感器产生信号Vsig。阈值电压VPth和VNth在Vsig中的64个脉冲的连续更新时间间隔的每一个的开始时产生，分别为Vsig中峰峰值电压的固定百分比。当Vsig超过阈值电压VPth时，接近检测器二进制输出电压为高电平，当Vsig低于阈值电压VNth时，接近检测器二进制输出电压为高电平。由第一和第二DAC产生的信号VPold和VNold等于每次启动连续间隔开始后的Vsig中的第一个正和负峰值。由第三和第四DAC同时产生的信号VPnew和VNnew等于在tupdate结束的间隔期间的Vsig中最大的正和负峰值电压。计数器将其计数器显示给第一和第二DAC，它们计数来自时钟的脉冲，用于跟踪Vsig中的+/-峰。在每次tupdate之后，如果在tupdate VNnew处于该范围之外，则产生信号Vupdt中的脉冲。如果VNnew位于VNold- + Z v到VNold ++ Z v的范围之外，则VNold- + Z v至VNold ++ Z v，其中+ Z v是增量DC偏置电压。 Vupdt复位计数器，使得在成功更新时间间隔期间，阈值电压VPth和VNth具有更新的阈值电压VPnew-VNnew的固定百分比。

84. 发明授权

US5297063A Method for selecting calibration data for an auto-calibrating compass 失效
标题翻译：选择自动校准罗盘的校准数据的方法
公开(公告)号：US5297063A
公开(公告)日：1994-03-22
申请号：US815264
申请日：1991-12-27
申请人： Russell E. Cage
发明人： Russell E. Cage
IPC分类号： G01C17/38 , G01D3/02 , G01D18/00 , G01C25/00
CPC分类号： G01D3/02 , G01C17/38 , G01D18/004
摘要： A method for selecting calibration data which uses mean square error to minimize variations in the calculated origins of the earth's magnetic field vector. A microcomputer having a memory calculates and stores the origin of the earth's magnetic field vector from the last three headings or data points. The x and y coordinates of the origins are summed with all the previous x and y coordinates and the mean square errors of the x and y coordinates are calculated. A figure of merit for the mean square errors is calculated. An adjusted origin is determined and stored by weighing the newly calculated origin by a figure of merit and adding it to the previous origin. Provision is made for reinitializing all quantities to zero when the sum of the mean square errors exceeds a predetermined maximum.
摘要翻译：一种选择校正数据的方法，该校正数据使用均方误差来最小化地球磁场矢量的计算起源的变化。具有存储器的微计算机计算并存储来自最后三个标题或数据点的地球磁场矢量的原点。原点的x和y坐标与所有先前的x和y坐标相加，并计算x和y坐标的均方误差。计算均方误差的品质因数。通过将新计算的来源称量一个品质因数并将其添加到以前的来源来确定和存储调整的来源。当均方误差的总和超过预定的最大值时，将所有数量重新初始化为零。

85. 发明授权

US5107847A Fiber-optic transducer apparatus 失效
标题翻译：光纤传感器装置
公开(公告)号：US5107847A
公开(公告)日：1992-04-28
申请号：US535974
申请日：1990-06-08
申请人： Wallace L. Knute , Wilber H. Bailey
发明人： Wallace L. Knute , Wilber H. Bailey
IPC分类号： A61B5/01 , A61B5/0215 , G01D3/02 , G01D3/036 , G01L9/00
CPC分类号： G01D3/0365 , A61B5/02154 , G01D3/02 , G01L9/0039
摘要： A fiber-optic transducer apparatus, and a related method of manufacturing it, for particular use in medical applications such as invasive blood pressure and body temperature measurement. The apparatus includes a catheter comprised of a sheath and an enclosed first set of optical fibers for transmitting a light beam to and from the remote end of the catheter, where a transducer modulates it in accordance with the variable to be measured, e.g., blood pressure. A photosensor located at the near end of the catheter measures the modulated intensity of the returned beam, to produce a corresponding measurement signal. The catheter is further comprised of a second set of optical fibers located within the sheath, for transmitting a reference light beam to and from the remote end of the catheter. A second photosensor measures the intensity of the returned reference light beam, to produce a correction signal indicative of variations in transmittance caused by bending of the catheter. It is presumed that the effects of such bending are the same for the second set of optical fibers as for the first set, so the apparatus adjusts the measurement signal in accordance with the correction signal, to produce an adjusted measurement signal that is substantially insensitive to the effects of such bending.
摘要翻译：光纤换能器装置及其制造方法，用于医疗应用，例如侵入性血压和体温测量。该装置包括由护套和封闭的第一组光纤组成的导管，用于将光束传输到导管的远端并从导管的远端传输，其中换能器根据待测量的变量调制它，例如血压。位于导管近端的光电传感器测量返回光束的调制强度，产生相应的测量信号。导管还包括位于护套内的第二组光纤，用于将参考光束传输到导管的远端并从导管的远端传输。第二光传感器测量返回的参考光束的强度，以产生指示由导管的弯曲引起的透射率变化的校正信号。推测这样的弯曲的效果对于第二组光纤与第一组相同，因此该装置根据校正信号调整测量信号，以产生对第一组光纤基本上不敏感的调整的测量信号这种弯曲的影响。

86. 发明授权

US5065613A Method for the direct presentation of a differential measured quantity in terms of its correct physical unit 失效
标题翻译：根据其正确的物理单位直接显示差分测量数量的方法
公开(公告)号：US5065613A
公开(公告)日：1991-11-19
申请号：US495101
申请日：1990-03-19
申请人： Michael Lehnert , Ulrich Modlinski , Rudi Roess
发明人： Michael Lehnert , Ulrich Modlinski , Rudi Roess
IPC分类号： G01D3/02 , G01N21/3504
CPC分类号： G01N21/3504 , G01D3/02
摘要： A method for the direct presentation of a differential measured quantity, in particular, a differential gas concentration measurement, in terms of its correct physical unit is disclosed. A characteristic curve representing the output of a gas sensor detector as a function of gas concentration is obtained in an absolute coordinate system. A reference level at which the differential measurement is to occur is defined on this characteristic curve by a defined input or, respectively, output value. This reference level defines the origin of a differential coordinate system from which the differential measurement may be directly ascertained.
摘要翻译：公开了根据其正确的物理单元直接呈现微分测量量的方法，特别是微分气体浓度测量。在绝对坐标系中获得表示作为气体浓度的函数的气体传感器检测器的输出的特性曲线。通过定义的输入或分别输出值在该特性曲线上定义要进行差分测量的参考电平。该参考水平定义了可以直接确定微分测量的差分坐标系的原点。

87. 发明授权

US4847794A Error compensation method for transducers having non-linear characteristics, and an assembly for carrying out said method 失效
标题翻译：具有非线性特性的传感器的误差补偿方法以及用于执行所述方法的组件
公开(公告)号：US4847794A
公开(公告)日：1989-07-11
申请号：US900691
申请日：1986-08-27
申请人： Franz Hrubes
发明人： Franz Hrubes
IPC分类号： G01D3/02 , G01D3/028
CPC分类号： G01D3/02
摘要： A method of error compensation for transducers having non-linear characteristics is shown. A computer-supported measuring circuit is used. In a first factory alignment, the output characteristic of the transducer is set so that it can be linearized by the computer using a power function. The appropriate exponent of the power function is stored. At the place of use, at least three calibration measurements are performed with the installed transducer using defined calibration measured values substantially spanning the measuring range of the transducer equidistantly. The power function is solved with the calibration measuring results and the stored exponent, so that the constants not yet known can be calculated. During every following service measurement, the actual measuring result is put into the now solved power function. The result of the equation is then outputted as the error-compensated measuring result.
摘要翻译：示出了具有非线性特性的换能器的误差补偿方法。使用计算机支持的测量电路。在第一个工厂对准中，传感器的输出特性被设置为使得它可以由计算机使用功率函数进行线性化。存储功率函数的适当指数。在使用的地方，使用已定义的校准测量值，使用安装的传感器进行至少三次校准测量，该测量值基本上跨越传感器的测量范围等距离。功率函数用校准测量结果和存储的指数求解，从而可以计算尚未知的常数。在每次后续的维修测量中，实际测量结果都被放入现在解决的功率功能中。然后将该方程的结果作为误差补偿测量结果输出。

88. 发明授权

US4810953A Electronic interface device between a sensor and a display unit 失效
标题翻译：传感器与显示单元之间的电子接口装置
公开(公告)号：US4810953A
公开(公告)日：1989-03-07
申请号：US24690
申请日：1987-03-11
申请人： Tan D. Huynh
发明人： Tan D. Huynh
IPC分类号： G01D1/02 , G01D3/02 , G01D3/06 , G01F23/00 , G01R19/26 , G01R15/08
CPC分类号： G01D3/066 , G01D1/02 , G01D3/02 , G01F23/0076
摘要： An electronic interface device is provided for use between a sensor and a display unit, including a controllable generator which delivers a signal to the display unit and is connected to an input of a comparator whose other input receives the output signal of the sensor. The output of the comparator controls the up counting or the down counting of an up-down counter of clock pulses. The sign output of the up-down counter controls the generator.
摘要翻译：提供了一种用于传感器和显示单元之间的电子接口装置，包括可控制的发生器，其将信号传送到显示单元，并连接到比较器的输入端，其另一输入接收传感器的输出信号。比较器的输出控制时钟脉冲上升计数器的向上计数或递减计数。升降台的符号输出控制发电机。

89. 发明授权

US4596931A Method of eliminating measuring errors in photometric analysis 失效
标题翻译：消除光度分析测量误差的方法
公开(公告)号：US4596931A
公开(公告)日：1986-06-24
申请号：US596295
申请日：1984-04-03
申请人： Gosta Ehnholm , Matti Hakala , Tapio Uimonen
发明人： Gosta Ehnholm , Matti Hakala , Tapio Uimonen
IPC分类号： G01D3/02 , G01D3/04
CPC分类号： G01D3/02
摘要： The invention relates to a method of eliminating the effect of temperature, air pressure and/or a disturbing material component or a like parameter in photometric analysis in which is generated a so-called dark signal, the passage of emitted radiation for detection being blocked at that time, a reference signal for one or more material components to be measured, said reference signal not being affected by said material component to be measured, as well as for each material component to be measured a measuring signal representing the amount of material component to be measured. According to the invention, whenever the difference between a reference signal and a measuring signal changes due to a change in any of the above parameters, there is generated a control signal which represents said parametric change and is proportional thereto, said control signal serving to change the difference between a reference signal and a dark signal in order to compensate for said parametric change. The material components to be measured may preferably comprise CO.sub.2, N.sub.2 O and/or one or more anesthetic gases.
摘要翻译：本发明涉及一种在光度分析中消除温度，空气压力和/或干扰材料成分等参数的影响的方法，其中产生所谓的暗信号，用于检测的发射辐射的通过被阻挡在该时间，用于待测量的一种或多种材料组分的参考信号，所述参考信号不受待测量的所述材料组分的影响，并且对于待测量的每种材料组分，表示材料组分的量的测量信号被测量。根据本发明，只要参考信号和测量信号之间的差异由于上述任何参数的变化而变化，就产生一个表示所述参数变化并与其成比例的控制信号，所述控制信号用于改变参考信号和暗信号之间的差异，以补偿所述参数变化。待测量的材料组分可优选包含CO 2，N 2 O和/或一种或多种麻醉气体。

90. 发明授权

US4560975A Method of and apparatus for error compensation in electronic analog sensing systems and the like 失效
标题翻译：电子模拟感测系统等中误差补偿的方法和装置
公开(公告)号：US4560975A
公开(公告)日：1985-12-24
申请号：US360209
申请日：1982-03-22
申请人： Curt Jarva
发明人： Curt Jarva
IPC分类号： G01D3/02 , G01L1/22 , G01R17/00 , H03M1/00 , H03K13/20
CPC分类号： G01D3/02 , G01L1/2268 , G01R17/00 , H03M1/08
摘要： Expensive electronics heretofore required to minimize errors introduced by component changes, such as voltage offsets, temperature or linearization errors or the like, are avoided by connecting analog sensor and analog-to-digital conversion components all in a novel feedback network with only moderately precise amplifiers, wherein there is automatic compensation through the feedback for such errors in these components, and with only the errors in the amplifiers driving the system producing any impact upon the system operation; and with those errors eliminated by novel chopper stabilization of the whole system, as distinguished from the individual amplifiers.
摘要翻译：通过将模拟传感器和模数转换组件全部在仅具有适度精确的放大器的新型反馈网络中连接来避免通过将模拟传感器和模数转换组件连接在一起，以最小化由元件变化引起的误差（例如电压偏移，温度或线性化误差等）其中通过对这些部件中的这种误差的反馈进行自动补偿，并且只有驱动系统的放大器中的误差对系统运行产生任何影响; 并且通过与整个系统的新颖的斩波器稳定消除这些错误，与各个放大器不同。

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