Electrostatic field measuring device
    2.
    发明授权
    Electrostatic field measuring device 失效
    静电场测量装置

    公开(公告)号:US3874616A

    公开(公告)日:1975-04-01

    申请号:US37602873

    申请日:1973-07-02

    Applicant: US ARMY

    CPC classification number: B64D45/02

    Abstract: This disclosure relates to electrostatic field strength and particularly to a device for detecting and indicating the strength of an electrostatic field in the vicinity of an aircraft. More particularly, this invention relates to a device for detecting and indicating the field strength in the vicinity of a helicopter or other device having rotating blades large enough physically to substantially alter the field strength pattern about the aircraft. In this device, the cyclically changing pattern of field strength caused by the rotation of the blades is sensed by a field probe to produce an alternating voltage that is applied to an amplifier and indicator that may be synchronized with the rotation of the blades, for noise component reduction.

    Abstract translation: 本公开涉及静电场强度,特别涉及用于检测和指示飞行器附近的静电场强度的装置。 更具体地说,本发明涉及一种用于检测和指示具有足够物理的旋转叶片的直升机或其他装置附近的场强的装置,以基本上改变围绕飞机的场强图案。 在该装置中,由场探针感测到由叶片的旋转引起的周期性变化的场强模式,以产生施加到可与叶片的旋转同步的放大器和指示器的交流电压,用于噪声 组件减少。

Patent Agency Ranking