Electrical Meters
An electrometer is an electrical instrument for measuring electric charge or electrical potential difference. There are many different types, ranging from historical hand-made mechanical instruments to high-precision electronic devices. Modern electrometers based on vacuum tube or solid state technology can be used to make voltage and charge measurements with very low leakage currents, down to 1 femtoampere. A simpler but related instrument, the electroscope, works on similar principles but only indicates the relative magnitudes of voltages or charges. [Summary provided by the National High Magnetic Field Laboratory.] Group: Instrument_Details Entry_ID: ELECTROMETER Group: Instrument_Identification Instrument_Category: In Situ/Laboratory Instruments Instrument_Class: Electrical Meters Short_Name: ELECTROMETER End_Group Online_Resource: http://www.orau.org/ptp/collection/electrometers/electrometers.htm Sample_Image: http://www.ptw.de/uploads/pics/unidos_atto.jpg Creation_Date: 2011-08-17 End_Group
ELECTROMETER