초록 ▼

A panoramic electrostatic field sensor includes a central monitoring electrode for detecting an electrostatic field oriented about a 360°arc peripheral thereto. An apertured housing is concentrically arranged about the monitoring electrode, the housing having circumferentially spaced windows through

A panoramic electrostatic field sensor includes a central monitoring electrode for detecting an electrostatic field oriented about a 360°arc peripheral thereto. An apertured housing is concentrically arranged about the monitoring electrode, the housing having circumferentially spaced windows through which the central electrode can “see”any electrostatic field radially disposed with respect to the sensor. A cylindrical shielding cap is rotated in the annular space between the monitoring electrode and the housing, the cap incorporating at least one slot to expose the monitoring electrode periodically to any fields viewed through the housing windows. Electronic means for measuring the voltage in response to the field detected is adapted to activate a static neutralizer for emission of positive and negative ions into the field or to actuate a variety of peripheral indicating or triggering devices which provide signals, alarms or readout functions.

대표청구항 ▼

A panoramic electrostatic field sensor comprising: central electrode means including circumferentially disposed sensing means thereon for detecting an electrostatic field oriented about a 360°arc peripheral to said central electrode means, an apertured housing concentrically arranged about said cent

A panoramic electrostatic field sensor comprising: central electrode means including circumferentially disposed sensing means thereon for detecting an electrostatic field oriented about a 360°arc peripheral to said central electrode means, an apertured housing concentrically arranged about said central electrode means and having a plurality of circumferentially spaced windows therein to permit a panoramic view by said central electrode means of any electrostatic field radially disposed with respect to the sensor, a cylindrical chopper cap rotatably supported in the annular space between said central electrode means and said housing an including an opening therein to expose said sensing means periodically to any electrostatic field passing through the housing windows, means for rotating said chopper cap so that the opening thereof sequentially passes across the housing windows, said sensing means including conducting elements circumferentially spaced about said central electrode means and in alignment with said housing windows, and means for measuring the voltage developed by the sensing means in response to the electrostatic field detected.