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1. 发明授权

US4250543A Method of controlling production processes and apparatus therefor 失效
标题翻译：控制生产工艺的方法及其设备
公开(公告)号：US4250543A
公开(公告)日：1981-02-10
申请号：US926913
申请日：1978-07-21
申请人： Richard L. Smith , Kent Van Allen
发明人： Richard L. Smith , Kent Van Allen
IPC分类号： F02M19/01 , H03K17/66 , G05B11/42 , G05B13/02
CPC分类号： F02M19/01 , H03K17/667
摘要： The specification discloses a novel method for controlling production processes of a pneumatic, electrical or hydraulic nature and apparatus therefor. The method, and therefore the apparatus for performing said method, counteracts any process change by utilizing the error difference and the rate of change of the error difference between a feedback signal related to a current condition of the process and a desired value related to the desired condition of the process.The error difference and rate of change and then utilized to produce a correction signal which is adapted to remain unchanged as long as the process being controlled, and the desired value signal, both remain in static condition, but which also has a unique look ahead feature such that said correction signal attempts to become saturated as soon as a new desired value is supplied, or a process change occurs. The correction signal, if saturated, is brought out of saturation much faster by using both the rate of change of the actual error difference between said desired value and said feedback signals and the actual error difference between said signals in a manner which is much faster than if only the error difference was used. If said correction signal never does reach a saturation point, or if it is saturated, upon becoming unsaturated, the correction signal is then changed much faster than previously possible by using the rate of change of the error difference, rather than the error difference only.
摘要翻译：本说明书公开了一种用于控制气动，电动或液压性质的生产工艺的新颖方法及其装置。该方法以及因此用于执行所述方法的装置通过利用与该过程的当前状况相关的反馈信号与期望值相关的期望值之间的误差差和误差差的变化率来抵消任何过程变化过程的条件。然后用于产生校正信号的误差差和变化率，以便只要被控制的过程被适配成保持不变，并且期望的值信号都保持静止状态，但是也具有独特的前视特征使得所述校正信号一旦提供新的期望值或试图发生过程变化就试图饱和。如果饱和的校正信号通过使用所述期望值和所述反馈信号之间的实际误差差的变化率和所述信号之间的实际误差差以更快速度的方式使其变得更快，如果仅使用差错差异。如果所述校正信号从未达到饱和点，或者如果它饱和，则在变得不饱和时，然后通过使用误差差的变化率而不是仅仅差错来改变校正信号比以前可能的快得多。

2. 发明授权

US4491773A Two-directional switched driver 失效
标题翻译：双向开关驱动器
公开(公告)号：US4491773A
公开(公告)日：1985-01-01
申请号：US473813
申请日：1983-03-09
申请人： Richard L. Smith , Kent Van Allen
发明人： Richard L. Smith , Kent Van Allen
IPC分类号： F02M19/01 , H02P7/28
CPC分类号： F02M19/01
摘要： The specification discloses a two-directional switched driver for use either independently or in a method of controlling production processes and apparatus therefor. The driver, whether used independently or in a process controller, utilizes polarity signals and a retriggerable timer to produce separate forward and reverse output signals which may be used to drive reversible motors or two-directional actuators by way of standard switching techniques. Examples of such uses are the use of most any reversible motor, or two-directional actuators to control mechanical, pneumatic or hydraulic circuits, such actuators operated by the driver may be rotational or non-rotational in nature.
摘要翻译：本说明书公开了一种双向开关驱动器，用于独立使用或用于控制生产工艺及其设备的方法。驱动器，无论是独立使用还是在过程控制器中，利用极性信号和可再触发定时器来产生单独的正向和反向输出信号，其可以用于通过标准切换技术来驱动可逆电动机或双向致动器。这种用途的例子是使用大多数任何可逆电动机或双向致动器来控制机械，气动或液压回路，由驾驶员操作的这种致动器本质上可以是旋转的或不旋转的。

3. 发明授权

US5676867A Apparatus and method for monitoring and evaluating weld quality 失效
标题翻译：用于监测和评估焊接质量的装置和方法
公开(公告)号：US5676867A
公开(公告)日：1997-10-14
申请号：US579770
申请日：1995-12-28
申请人： Kent Van Allen
发明人： Kent Van Allen
IPC分类号： B23K9/20
CPC分类号： B23K9/205
摘要： A weld monitoring and evaluating circuit (10) for non-destructively determining if a just-completed weld is a satisfactory or an unsatisfactory weld. The circuit is used to derive the temperature at the weld zone in real time by determining the total power input to the weld zone, taking into account losses experienced at the weld zone, and dividing the result by the thermal mass of the weld zone. The predicted temperature at the weld zone is compared against an electrical signal representing at least a minimum desired welding temperature needed to be attained at the weld zone to produce a satisfactory weld at the time that the stud (16) contacts the weld pool (18a) (e.g., the "plunge event"). If the derived weld temperature signal has exceeded the reference signal at the time the plunge event occurs, then it is assumed that a satisfactory weld has occurred. If the electrical signal representing the derived weld temperature does not exceed the reference signal at the time the plunge event occurs, then it is assumed that an unsatisfactory weld has occurred. In an alternative preferred embodiment, a comparator window circuit (138) is used to ensure that the derived weld temperature at the time of the plunge event falls between predetermined upper and lower temperature limits before a satisfactory weld is indicated. A further embodiment uses the derived weld temperature signal to dynamically control the drop point of the stud and thereby control the total weld time. Weld repeatability and quality are thereby improved.
摘要翻译：一种焊接监测和评估电路（10），用于非破坏性地确定刚刚完成的焊缝是否是令人满意的或不令人满意的焊缝。该电路用于通过确定焊接区域的总功率，考虑到焊接区域发生的损耗，并将结果除以焊接区域的热质量，实时获取焊接区域的温度。将焊接区域处的预测温度与表示至少在焊接区域达到的最小期望焊接温度的电信号进行比较，以在螺柱（16）接触熔池（18a）时产生令人满意的焊接，（例如，“暴跌事件”）。如果导出的焊接温度信号在发生插入事件时超过了参考信号，则假设发生了令人满意的焊接。如果表示导出的焊接温度的电信号在插入事件发生时不超过参考信号，则假设发生不令人满意的焊接。在替代的优选实施例中，使用比较器窗口电路（138）来确保在突出事件发生时导出的焊接温度在指示满意的焊接之前落在预定的上限和下限温度之间。另一实施例使用导出的焊接温度信号来动态地控制螺柱的下落点，从而控制总焊接时间。从而改善焊接重复性和质量。

4. 发明授权

US4502318A Method and apparatus for calibrating flow meters 失效
标题翻译：用于校准流量计的方法和装置
公开(公告)号：US4502318A
公开(公告)日：1985-03-05
申请号：US353206
申请日：1982-03-01
申请人： Vernon G. Converse, III , James M. Bordato , Theodore R. Bott , Charles E. Foerster, Jr. , Robert E. Miller , Ronald K. Mudge , Aldren M. Pace , Kent Van Allen
发明人： Vernon G. Converse, III , James M. Bordato , Theodore R. Bott , Charles E. Foerster, Jr. , Robert E. Miller , Ronald K. Mudge , Aldren M. Pace , Kent Van Allen
IPC分类号： G01F25/00 , G01G17/04
CPC分类号： G01G17/04 , G01F25/0007
摘要： The specification discloses a method and apparatus for calibrating liquid flow meters of all types. The system includes a scale for dynamically determining the weight of a liquid flowing through a flow meter, together with means for measuring the flow through the flow meter being tested. In the case of a glass tube flow meter, a float detection system is used, whereby the operator will set the flow through the flow meter to a desired point, use the float detection system to make certain the float stays in a fixed position during the test, as well as to locate the float from a reference point, and use the system to measure the flow through the flow meter during a fixed period of time, thereby obtaining a reading, in engineering units, for each predetermined position of the float.
摘要翻译：本说明书公开了用于校准所有类型的液体流量计的方法和装置。该系统包括用于动态地确定流过流量计的液体的重量的秤，以及用于测量通过所测试的流量计的流量的装置。在玻璃管流量计的情况下，使用浮子检测系统，由此操作者将流过流量计的流量设定到所需点，使用浮子检测系统确保浮子在测试，以及从参考点定位浮子，并使用系统在固定时间段内测量通过流量计的流量，从而以工程单位为浮子的每个预定位置获得读数。

5. 发明授权

US4492281A Weigh scale 失效
标题翻译：称重秤
公开(公告)号：US4492281A
公开(公告)日：1985-01-08
申请号：US353171
申请日：1982-03-01
申请人： Kent Van Allen , James M. Bordato
发明人： Kent Van Allen , James M. Bordato
IPC分类号： G01G1/34 , G01G11/04 , G01G17/06 , G01G19/414 , G01G7/00 , G01G3/14 , G01G19/52
CPC分类号： G01G19/414 , G01G1/34 , G01G11/046 , G01G17/06
摘要： The specification discloses an improved weigh scale of the dual beam type having large and small flow buckets adapted to receive a flow of fluid therein, and an encoder connected to a ball screw having a poise weigh driven by a drive motor for keeping the scale continually balanced while a fluid is being introduced into one of said flow buckets, and having a power supply circuit, a pulse encoder circuit, and a poise control circuit for operation thereof, the improvement including an improved poise control circuit having low gain with high integration for use during the run mode, but being switchable to a circuit having high gain and derivative action during the calibration mode.
摘要翻译：本说明书公开了一种具有适于接收流体流的大型和小型流动铲斗的双梁类型的改进的称重秤，以及连接到具有由驱动马达驱动的重量级的滚珠丝杠的编码器，用于保持刻度尺持续平衡同时流体被引入到一个所述流动桶中，并且具有电源电路，脉冲编码器电路和用于操作它的平衡控制电路，改进包括具有低增益的改进的泊位控制电路，具有高集成度以供使用在运行模式期间，但是在校准模式期间可切换到具有高增益和微分作用的电路。

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