electrometer
Electrical potential gauge
An electrometer is an instrument for measuring electric charge or potential difference, designed to detect extremely small currents that conventional meters cannot register.
Electrometers find use in scientific research, radiation detection, and measuring atmospheric electricity: The electrometer registered a faint charge from the ionized air.
Measures electrical flow strength
- multimeterCombined electrical measuring device
- oscilloscopeVoltage waveform display device
- spectrometerMeasures electromagnetic radiation properties
- magnetometerInstrument measuring field strength
Electric charge units
- staticWithout motion or change
- ionsAtoms bearing charge
- polarityState of opposing forces
- capacitanceElectrical charge storage measure
induction · ionization · triboelectric · leakage · discharge
Adjusting for measurement accuracy
- sensitivityResponsiveness to stimuli
- accuracyDegree of correctness
- precisionAccuracy of measurement
- readoutDisplayed recorded data
detection · threshold · resolution · quantification · units · scale · deflection · linearity
Electrical potential difference
- currentDirected flow of charge
- resistanceCapacity to withstand force
- impedanceAC circuit opposition
- conductanceEase of current flow
Radiation absorption measurement
- mass spectrometryMeasures ionic weight ratios
- bioelectricityCurrent in living tissue
galvanometer
Measures electrical flow strength
- multimeterCombined electrical measuring device
- oscilloscopeVoltage waveform display device
- spectrometerMeasures electromagnetic radiation properties
coulombs
Electric charge units
capacitance · induction · ionization · triboelectric · leakage · discharge
calibration
Adjusting for measurement accuracy
- sensitivityResponsiveness to stimuli
- accuracyDegree of correctness
- precisionAccuracy of measurement
readout · detection · threshold · resolution · quantification · units · scale · deflection · linearity · repeatability
voltage
Electrical potential difference
- currentDirected flow of charge
- resistanceCapacity to withstand force
- impedanceAC circuit opposition
conductance · dielectric · insulation · shielding · grounding
dosimetry
Radiation absorption measurement
- mass spectrometryMeasures ionic weight ratios
- bioelectricityCurrent in living tissue
electrometerthermometer
Heat-measuring instrument
barometer · hygrometer · anemometer · odometer · altimeter