Encoding altimeter
    1.
    发明授权
    Encoding altimeter 失效
    编码高度计

    公开(公告)号:US4027143A

    公开(公告)日:1977-05-31

    申请号:US664591

    申请日:1976-03-08

    CPC分类号: G01C5/06 G01L9/02

    摘要: The pressure of the atmosphere is sensed by a pressure transducer which causes a resistance to vary. The variance of this resistor is converted to a variable frequency. The number of cycles of this frequency in a set amount of time is counted by a counter and displayed by a digital display. An up/down counter is loaded with the count of the last digital readout in the previous cycle and counts down the number of cycles in the frequency of the next reading and displays the difference on a digital display or activates a sonic output if the countdown is greater than the stored previous count.

    摘要翻译: 大气的压力由压力传感器感测到,其导致电阻变化。 该电阻的方差被转换为可变频率。 在一定时间内该频率的周期数由计数器计数并由数字显示器显示。 上/下计数器加载上一个循环中最后一个数字读数的计数,并且计数下一次读取频率的周期数,并在数字显示器上显示差值,或者如果倒计时是 大于存储的先前计数。

    Self-aerating container
    4.
    发明授权
    Self-aerating container 失效
    自充气容器

    公开(公告)号:US4129095A

    公开(公告)日:1978-12-12

    申请号:US752785

    申请日:1976-12-20

    CPC分类号: A01K63/042 A01K63/02

    摘要: A simple self-aerating container for small marine life which requires no power. The aeration rate is easily adjusted continuously and remains constant once set. At low flow rates, the container can be aerated over night, and the high flow rates can be used when there are a larger number of small marine life in the container, or when it is desirable to have them very active. The aerator consists of a tank with a hand pump, a simple pressure regulator, and a unique mass (air) flow regulator. The tank is also equipped with a spring loaded safety valve and a valve for filling the tank at a service station.

    摘要翻译: 一种简单的用于小海洋生物的充气容器,不需要电力。 曝气速率可以很容易地调整,一旦设定就保持不变。 在低流量下,容器可以充气过夜,并且当容器中存在较大数量的小海洋生物时,或者当希望使其非常活跃时,可以使用高流量。 曝气器由一个带有手动泵的油箱,一个简单的压力调节器和独特的质量(空气)流量调节器组成。 油箱还配备有弹簧加载的安全阀和用于在维修站填充油箱的阀。

    Encoding altimeter
    5.
    发明授权
    Encoding altimeter 失效
    编码高度计

    公开(公告)号:US3961272A

    公开(公告)日:1976-06-01

    申请号:US533576

    申请日:1974-12-17

    CPC分类号: G01L9/02 G01C5/06

    摘要: The pressure of the atmosphere is sensed by a pressure transducer which causes a resistance to vary. The variance of this resistor is converted to a variable frequency. The number of cycles of this frequency in a set amount of time is counted by a counter and displayed by a digital display. An up/down counter is loaded with the count of the last digital readout in the previous cycle and counts down the number of cycles in the frequency of the next reading and displays the difference on a digital display or activates a sonic output if the countdown is greater than the stored previous count.

    摘要翻译: 大气的压力由压力传感器感测到,其导致电阻变化。 该电阻的方差被转换为可变频率。 在一定时间内该频率的周期数由计数器计数并由数字显示器显示。 上/下计数器加载上一个循环中最后一个数字读数的计数,并且计数下一次读取频率的周期数,并在数字显示器上显示差值,或者如果倒计时是 大于存储的先前计数。