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    • 121. 发明授权
    • Visual and electronic battery hydrometer
    • 视觉和电子电池比重计
    • US3954010A
    • 1976-05-04
    • US571896
    • 1975-04-25
    • Richard W. Hilblom
    • Richard W. Hilblom
    • G01F23/30G01F23/292G01N9/18H01M10/48G01F23/02
    • H01M10/484G01F23/2922G01N9/18
    • A combined visual and electronic liquid indicator which may be used as a battery hydrometer is disclosed. An outer housing of a generally cylindrical shape receives a centrally located elongated light transmitting viewing rod. The lower portion of the rod extends into a channel at the lower end of the outer housing. A float is retained in the channel by a retaining cage. A second generally cylindrical inner member which fits over the rod and into the outer housing has a light sensor and a light detector secured at its lower end across diametrically opposite portions of the float channel, and the outer housing and the inner member are then sealed together.
    • 公开了可用作电池比重计的组合的视觉和电子液体指示器。 大体为圆柱形的外壳容纳中心位置细长的透光观察杆。 杆的下部延伸到外壳的下端的通道中。 浮子通过保持架保持在通道中。 第二大致圆柱形的内部构件,其配合在杆上并进入外部壳体中,具有光学传感器和光学探测器,其固定在其下端横跨浮动通道的径向相对的部分,然后将外部壳体和内部构件密封在一起 。
    • 123. 发明授权
    • Specific gravity sensor and a system employing the sensor
    • 特殊传感器和使用传感器的系统
    • US3777574A
    • 1973-12-11
    • US3777574D
    • 1971-01-04
    • UNIV CALIFORNIA
    • BROWN DISAACS J
    • G01N9/18G01N9/10
    • G01N9/18Y10S250/902
    • A specific gravity sensor that is disposed in a liquid, the sensor including at least one pair of vertically extending, light-transmitting elements, one of the elements of the pair having a light-emitting portion submerged in the liquid, which portion is spaced from a confronting light-receiving portion of the other element. Each element has a portion that extends above the liquid and one of those latter portions is subjected to light. A light-flow inhibitor is guided vertically to move upwardly and downwardly between those submerged portions of those elements depending upon the variations in the specific gravity of the liquid and the inhibitor thereby functions to permit and prevent, respectively, the transmission of light therebetween. The sensor can be employed in a system for controlling mechanism by picking up light rays that emanate from the light-receiving light-transmitting element.
    • 一种布置在液体中的比重传感器,该传感器包括至少一对垂直延伸的透光元件,该对中的一个元件具有浸没在液体中的发光部分,该部分与液体间隔开 另一个元件的面对的光接收部分。 每个元件具有在液体上方延伸的部分,并且这些后部分中的一个被照射。 根据液体和抑制剂的比重的变化,光流阻止器被垂直地引导以在这些元件的这些浸没部分之间向上和向下移动,从而起到分别允许和防止它们之间的透光的作用。