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    • 6. 发明授权
    • Apparatus for measuring internal resistance of wet cell storage
batteries having non-removable cell caps
    • 用于测量具有不可拆卸电池盖的湿电池蓄电池的内阻的装置
    • US5047722A
    • 1991-09-10
    • US338688
    • 1989-04-17
    • John W. WurstStephen A. GarronAllan M. Dob
    • John W. WurstStephen A. GarronAllan M. Dob
    • G01R31/36
    • G01R31/3662
    • Apparatus for measuring the total internal resistance of a multicell battery having positive and negative terminals employs a first transistor device having an input and an output and having mutually exclusive conductive and non-conductive electric states. An arrangement of resistances is connected in series with the device to form a network. The network is connected between the positive and negative terminals. An operational amplifier has an output connected to the input of the device and first and second inputs. The first input is connected to the network at a point connected to both of the device and the arrangement. A square wave signal alternating between a positive voltage and ground on alternate half cycles is applied to the second input. The device is in the conductive state when the alternating voltage is positive and is in the non-conductive state when the alternating voltage is at ground. The network conducts no current when the device is in the non-conductive state and conducts a current of constant value when the device is in the conductive state. The voltage appearing between the terminals as a result of the current in the network is monotonically related to the internal resistance of the battery.
    • 用于测量具有正和负端子的多电池电池的总内部电阻的装置采用具有输入和输出并具有相互排斥的导电和非导电电状态的第一晶体管器件。 电阻的布置与设备串联连接以形成网络。 网络连接在正极和负极之间。 运算放大器具有连接到设备的输入和第一和第二输入的输出。 第一输入端连接到与设备和设备两者相连的点。 将交替的半周期的正电压和地之间交替的方波信号施加到第二输入。 当交流电压为正时,器件处于导通状态,并且当交流电压接地时处于非导通状态。 当器件处于非导通状态时,网络不会导通电流,并在器件处于导通状态时导通恒定电流。 作为网络中的电流的结果,在端子之间出现的电压与电池的内部电阻单调相关。
    • 7. 发明授权
    • Emergency battery monitor
    • 紧急电池监视器
    • US4957828A
    • 1990-09-18
    • US281609
    • 1988-12-09
    • Stephen A. Garron
    • Stephen A. Garron
    • G01R31/36H01M10/48
    • G01R31/36H01M10/484
    • An emergency battery monitor is adapted for use with at least one storage battery. The battery has first and second output terminals across which an output voltage is produced, the battery, when in normal operation, exhibiting an output voltage falling within a nominal value range having predetermined maximum and minimum values. The battery has at least one cell which contains a liquid electrolyte. The electrolyte, when the battery is in normal operation, has a predetermined minimum level in the cell. The monitor includes a member associated with the cell, which is electrically conductive when the level of the electrolyte is at least equal to the minimum level and is electrically non-conductive when the level of the electrolyte falls below the minimum level. Integrated circuits coupled to the output terminals and the member produce a first signal designating normal battery operation when the member is conductive and the value of the output voltage falls within the nominal value range. The circuits produce a second signal designating abnormal battery operation when the value of the output signal falls below the minimum value, and/or the member is non-conductive, and produces a third signal designating abnormal battery operation when the value of the output signal exceeds the maximum value.
    • 紧急电池监视器适用于至少一个蓄电池。 电池具有产生输出电压的第一和第二输出端子,当正常操作时,电池具有落在具有预定最大值和最小值的标称值范围内的输出电压。 电池具有至少一个包含液体电解质的电池。 当电池正常工作时,电解液在电池中具有预定的最低水平。 监测器包括与电池相关联的构件,当电解质的水平至少等于最小水平时,该构件是导电的,并且当电解质水平降到最低水平以下时,它是不导电的。 耦合到输出端子和构件的集成电路在构件导通并且输出电压的值落在标称值范围内时产生指示正常电池操作的第一信号。 当输出信号的值低于最小值时,电路产生指示异常电池操作的第二信号,和/或构件不导通,并且当输出信号的值超过时产生指示异常电池操作的第三信号 最大值。