| definition |
- An apparatus for the simultaneous continuous recording of the atmospheric electric potential gradient and the air-earth current is described. The CR constants are chosen in such a way that minor changes of the atmosphere electric elements in question are suppressed and the diurnal valuations can readily be seen from the records Modern technical means such as rex-channel recorders, electrometer tubes, and low loss cables make it possible to register a great range of potential gradient and air-earth current Moreover the apparatus is foolproof and convenient as to dimensions and weight so that it can be used on mountain observatories and expeditions without difficulty.
[Source: Kasemir, H.-W. 1951. An apparatus for simultaneous registration of potential gradient and air-earth current (Description and first results). Journal of Atmospheric and Terrestrial Physics 2(1):32-37. (The whole paper is attached).]
Group: Instrument_Details
Entry_ID: BR
Group: Instrument_Identification
Instrument_Category: In Situ/Laboratory Instruments
Instrument_Class: Recorders/Loggers
Short_Name: BR
Long_Name: Benndorf Recorder
End_Group
Creation_Date: 2011-08-25
End_Group
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