Water treatment controller for an evaporative condenser
    1.
    发明授权
    Water treatment controller for an evaporative condenser 失效
    用于蒸发冷凝器的水处理控制器

    公开(公告)号:US5294916A

    公开(公告)日:1994-03-15

    申请号:US824636

    申请日:1992-01-23

    Abstract: An apparatus controls the treatment of water that flows through a cooling system. The electrical conductivity of the water is sensed. A valve control opens a system drain valve when the sensed conductivity is greater than a threshold, and closes the drain valve when the conductivity drops below the threshold by a given amount. The water drained form the system is replenished through an inlet and a mechanism measures the volume of water added to the cooling system. Chemicals to treat the water are fed into the system when specified volumes of water have been added. The sensing of conductivity can be inhibited for a certain period following the application of the chemicals. A possible system malfunction is indicated when the conductivity does not drop below the threshold after the drain valve is open for a given period of time.

    Abstract translation: 设备控制流经冷却系统的水的处理。 感测水的电导率。 当检测到的电导率大于阈值时,阀门控制器打开系统排放阀,并且当电导率低于阈值一定量时关闭排水阀。 通过入口补充系统排出的水,并且机构测量加入到冷却系统中的水的体积。 当加入特定体积的水时,将处理水的化学品加入系统。 在施用化学物质后一定时间内,可以抑制电导率的检测。 当泄放阀打开一段给定的时间后,电导率不会下降到阈值以下时,可能会出现系统故障。

    Magnetic anomaly sensor system
    2.
    发明授权
    Magnetic anomaly sensor system 失效
    磁异常传感器系统

    公开(公告)号:US06546344B1

    公开(公告)日:2003-04-08

    申请号:US09608650

    申请日:2000-06-30

    CPC classification number: G01V3/081

    Abstract: The present invention is directed to a method and apparatus for measuring a magnetic field and determining whether an anomaly is present based on the magnetic field measurement and a measured ambient magnetic field. The present invention is also directed to a method and apparatus for measuring the intensity of the magnetic field by implementing operations to essentially eliminate error components that arise due to factors including offsets and gains affecting the intensity signal processing.

    Abstract translation: 本发明涉及一种用于测量磁场并基于磁场测量和测量的环境磁场来确定是否存在异常的方法和装置。 本发明还涉及一种用于通过实施基本上消除由于包括影响强度信号处理的偏移和增益的因素引起的误差分量的操作来测量磁场强度的方法和装置。

    System for measuring line to ground impedance
    3.
    发明授权
    System for measuring line to ground impedance 失效
    用于测量线对地阻抗的系统

    公开(公告)号:US5450328A

    公开(公告)日:1995-09-12

    申请号:US215347

    申请日:1994-03-21

    CPC classification number: G01R31/42 G01R27/18

    Abstract: A line isolation monitor (LIM) indicates the maximum hazard current of an ungrounded polyphase power distribution system. The LIM is microcontroller based and continuously monitors a fault impedance for the distribution system. The fault impedance is determined by the LIM by injecting a continuous sine wave measurement current into a ground terminal to generate a measurement voltage across the fault impedance. Using the measurement voltage and current, the LIM calculates the fault impedance and, using this impedance, calculates the hazard current based on the maximum line to ground voltage of the ungrounded system. The LIM has means for self-calibration and self-testing while on-line and during a power-up sequence to verify that components in the measurement circuitry are within specified tolerances.

    Abstract translation: 线路隔离监视器(LIM)表示未接地多相配电系统的最大危险电流。 LIM是基于微控制器的,并且连续地监视配电系统的故障阻抗。 故障阻抗由LIM通过将连续的正弦波测量电流注入接地端子来产生故障阻抗上的测量电压来确定。 使用测量电压和电流,LIM计算故障阻抗,并使用该阻抗,根据未接地系统的最大线对地电压来计算危险电流。 LIM具有在线和在上电序列期间进行自校准和自检的手段,以验证测量电路中的组件是否在规定的公差范围内。

    Water treatment control system for a boiler
    4.
    发明授权
    Water treatment control system for a boiler 失效
    锅炉水处理控制系统

    公开(公告)号:US5152252A

    公开(公告)日:1992-10-06

    申请号:US824634

    申请日:1992-01-23

    Abstract: An apparatus controls treatment of water flowing through a boiler and includes a device that monitors the conductivity of the water. A controller opens a drain valve at periodic intervals, and closes the drain valve when the conductivity drops below a defined threshold. A mechanism measures the volume of water that flows into the boiler and a chemical is added to the water when a specified amount of water has flowed into the boiler. Alternatively the application of the chemical can occur at regular intervals of time. The chemical is applied for a user definable period of time. The application of the chemical is suspended when the cessation of water flow into the boiler is detected.

    Abstract translation: 一种装置控制对流过锅炉的水的处理,并且包括监测水的电导率的装置。 控制器以周期性间隔打开排水阀,并且当电导率低于规定的阈值时关闭排水阀。 一个机构测量流入锅炉的水量,当一定量的水流入锅炉时,化学物质就会被添加到水中。 或者,化学品的施用可以以规则的时间间隔进行。 该化学品适用于用户可定义的一段时间。 当检测到水流入锅炉时停止使用化学品。

    Monitor for an ungrounded system
    5.
    发明授权
    Monitor for an ungrounded system 失效
    监控未接地系统

    公开(公告)号:US5448491A

    公开(公告)日:1995-09-05

    申请号:US215435

    申请日:1994-03-21

    CPC classification number: G01R31/42 G01R27/18

    Abstract: A line isolation monitor (LIM) indicates the maximum hazard current of an ungrounded polyphase power distribution system. The LIM is microcontroller based and continuously monitors a fault impedance of the distribution system. The fault impedance is determined by the LIM by injecting a continuous sine wave measurement current into a ground terminal to generate a measurement voltage across the fault impedance. Using the measurement voltage and current, the LIM calculates the fault impedance and, using this impedance, calculates the hazard current based on the maximum line to ground voltage of the ungrounded system. The hazard current is displayed and if it exceeds a predetermined threshold, the LIM will provide audio and visual alarms. A serial communications channel allows the LIM to communicate with other intelligent devices. The LIM has means for self-calibration and self-testing while on-line and during a power-up sequence. Line frequency is also determined by the LIM. Two LIMs can be used to monitor the same distribution system at the same time without interfering with each other.

    Abstract translation: 线路隔离监视器(LIM)表示未接地多相配电系统的最大危险电流。 LIM是基于微控制器的,并持续监控配电系统的故障阻抗。 故障阻抗由LIM通过将连续的正弦波测量电流注入接地端子来产生故障阻抗上的测量电压来确定。 使用测量电压和电流,LIM计算故障阻抗,并使用该阻抗,根据未接地系统的最大线对地电压来计算危险电流。 显示危险电流,如果超过预定阈值,LIM将提供音频和视觉报警。 串行通信通道允许LIM与其他智能设备进行通信。 LIM具有自动校准和自检功能,可在线和上电时进行。 线路频率也由LIM决定。 两个LIM可以同时监视相同的分配系统,而不会相互干扰。

    System for calibrating a line isolation monitor
    6.
    发明授权
    System for calibrating a line isolation monitor 失效
    用于校准线路隔离监视器的系统

    公开(公告)号:US5446682A

    公开(公告)日:1995-08-29

    申请号:US215437

    申请日:1994-03-21

    CPC classification number: G01R27/18 G01R31/1272

    Abstract: A line isolation monitor (LIM) indicates the maximum hazard current of an ungrounded polyphase power distribution system. The LIM is microcontroller based and continuously monitors a fault impedance for each phase of the distribution system. The fault impedance is determined by the LIM by injecting a continuous sine wave measurement current into a ground terminal to generate a measurement voltage across the fault impedance. Using the measurement voltage and current, the LIM calculates the fault impedance and, using this impedance, calculates the hazard current based on the maximum line to ground voltage of the ungrounded system. The LIM has means for self-calibration and self-testing while on-line and during a power-up sequence. These tests compare measured and theoretical values of circuit parameters of voltage and current sensing circuits. During this calibration check, the monitoring circuits of the LIM are removed from the isolated system and known voltage and current signals are injected internally to the monitoring circuits to verify the component parameters. If the calibration parameters are outside tolerances by a first, low level, the LIM annunciates a warning, but will continue to monitor the hazard current. If the deviation is greater than a second, higher level, the LIM will indicate a fault and remove itself from service.

    Abstract translation: 线路隔离监视器(LIM)表示未接地多相配电系统的最大危险电流。 LIM是基于微控制器的,并且连续地监测分配系统的每个阶段的故障阻抗。 故障阻抗由LIM通过将连续的正弦波测量电流注入接地端子来产生故障阻抗上的测量电压来确定。 使用测量电压和电流,LIM计算故障阻抗,并使用该阻抗,根据未接地系统的最大线对地电压来计算危险电流。 LIM具有自动校准和自检功能,可在线和上电时进行。 这些测试比较了电压和电流检测电路电路参数的测量值和理论值。 在此校准检查期间,LIM的监控电路从隔离系统中移除,并将已知的电压和电流信号内部注入监控电路,以验证组件参数。 如果校准参数超出了第一个低水平的公差,则LIM会通知警告,但会继续监视危险电流。 如果偏差大于一秒,则较高级别,LIM将指示故障并将其自身从服务中移除。

    Dispenser with low-material sensing system
    7.
    发明授权
    Dispenser with low-material sensing system 有权
    配有低材料感应系统的分配器

    公开(公告)号:US08807475B2

    公开(公告)日:2014-08-19

    申请号:US12619486

    申请日:2009-11-16

    Abstract: Apparatus, systems and methods for dispensing sheet material from a roll which include a low-material sensing system. The low-material sensing system provides an indication when the sheet material approaches depletion or is depleted so that the depleted sheet material roll can be replaced with a full roll. The low-material sensing system determines that the sheet material is depleted or near depletion by comparing the rotational speed of a sheet material roll from which the sheet material is unwound with the speed of the motor which produces movement of the sheet material roll when power is supplied to the motor. The sheet material roll speed increases as material is unwound while the motor speed remains relatively constant. A low-material indication is provided when the comparison reaches a threshold representative of the low-material state.

    Abstract translation: 用于从包括低材料感测系统的卷分配片材的装置,系统和方法。 当材料接近耗尽或耗尽时,低材料感测系统提供指示,从而可以用全辊替换耗尽的片材卷。 低材料感测系统通过将片材材料卷起来的片材卷的旋转速度与电动机的速度进行比较来确定片状材料耗尽或接近耗尽,当动力为 提供给电机。 当电机速度保持相对恒定时,材料卷绕速度增加。 当比较达到代表低材料状态的阈值时,提供低材料指示。

    Animal identification system
    8.
    发明授权
    Animal identification system 失效
    动物识别系统

    公开(公告)号:US4129855A

    公开(公告)日:1978-12-12

    申请号:US815796

    申请日:1977-07-15

    Inventor: James A. Rodrian

    CPC classification number: G06K7/10336 A01K11/006 A61B5/117 G07C9/00111

    Abstract: A transceiver unit includes an oscillator which generates a pulse train to a transceiver counter that connects to a display. The pulse train is also coupled by means of coils to a counter contained in a portable transponder unit which attaches to the animal. The transponder unit counter counts in synchronism with the transceiver counter and it generates a reset pulse when it counts a preselected number of the pulses. This reset pulse is coupled by means of coils to the transceiver unit. The preselected number corresponds to the identification number of the animal and the reset pulse reads this number out of the transceiver counter to the display.

    Abstract translation: 收发器单元包括产生到连接到显示器的收发器计数器的脉冲串的振荡器。 脉冲串还通过线圈耦合到包含在附接到动物的便携式转发器单元中的计数器。 应答器单元计数器与收发器计数器同步计数,并在计数预选数量的脉冲时产生复位脉冲。 该复位脉冲通过线圈耦合到收发器单元。 预选号码对应于动物的识别号,复位脉冲从显示器的收发器计数器中读出该号码。

    Dispenser with Low-Material Sensing System
    9.
    发明申请
    Dispenser with Low-Material Sensing System 有权
    具有低材料感应系统的分配器

    公开(公告)号:US20110114782A1

    公开(公告)日:2011-05-19

    申请号:US12619486

    申请日:2009-11-16

    Abstract: Apparatus, systems and methods for dispensing sheet material from a roll which include a low-material sensing system. The low-material sensing system provides an indication when the sheet material approaches depletion or is depleted so that the depleted sheet material roll can be replaced with a full roll. The low-material sensing system determines that the sheet material is depleted or near depletion by comparing the rotational speed of a sheet material roll from which the sheet material is unwound with the speed of the motor which produces movement of the sheet material roll when power is supplied to the motor. The sheet material roll speed increases as material is unwound while the motor speed remains relatively constant. A low-material indication is provided when the comparison reaches a threshold representative of the low-material state.

    Abstract translation: 用于从包括低材料感测系统的卷分配片材的装置,系统和方法。 当材料接近耗尽或耗尽时,低材料感测系统提供指示,从而可以用全辊替换耗尽的片材卷。 低材料感测系统通过将片材材料卷起来的片材卷的旋转速度与电动机的速度进行比较来确定片状材料耗尽或接近耗尽,当电源为 提供给电机。 当电机速度保持相对恒定时,材料卷绕速度增加。 当比较达到代表低材料状态的阈值时,提供低材料指示。

    Method and apparatus for controlling a dispenser to conserve towel dispensed therefrom
    10.
    发明授权
    Method and apparatus for controlling a dispenser to conserve towel dispensed therefrom 有权
    用于控制分配器以节省从其分配的毛巾的方法和装置

    公开(公告)号:US07594622B2

    公开(公告)日:2009-09-29

    申请号:US11537867

    申请日:2006-10-02

    CPC classification number: A47K10/36 A47K10/3612 A47K10/3625 A47K2010/3668

    Abstract: Towel dispensing methods and automatic towel dispensers permitting conservation of the overall amount of towel dispensed. The towel dispensing methods and towel dispensers limit the amount of towel dispensed in dispense cycles which occur shortly after an initial dispense cycle. The user is provided with sufficient towel to meet the user's needs while reducing overall towel usage and limiting towel waste.

    Abstract translation: 毛巾分配方法和自动毛巾分配器允许保存毛发总量。 毛巾分配方法和毛巾分配器限制在初始分配周期后不久发生的分配循环中分配的毛巾量。 为使用者提供足够的毛巾以满足用户的需求,同时减少毛巾的使用量并限制毛巾的浪费。

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