electrometer
1
9.2
- noun
- /ɪˌlɛkˈtrɒmɪtər/
- Specialized
:
electrómetro
- An electrometer measures the voltage differences in a circuit without affecting the current flow.
Examples
-
The electrical resistance (Rs) of the PyC films was obtained by a Keithley electrometer (Keithley Instruments, 610C Solid State Electrometer, USA) using a four-point method and the average of six sites near the center of the specimen.
Academic text (2018) -
The presence of a second electron on the defect site decreases the current through the conduction channel; like the Delft group's quantum point contact, the FET thus functions as a sensitive electrometer.
Academic text (2004) -
The electrical resistance (Rs) of the PyC films was obtained by a Keithley electrometer (Keithley Instruments, 610C Solid State Electrometer, USA) using a four-point method and the average of six sites near the center of the specimen.
Academic text (2018) -
To check the electrostatic field strength, we used an electrometer for precise measurements.
-
The scientist demonstrated how the electrometer can detect minute voltage changes in the experiment.
Synonyms
1
3.9
An electronic tool that measures voltage, current and resistance in wires and circuits
A device that measures very small electrical voltages in millivolts
A tool that measures voltage accurately by comparing it with a known voltage source
A tool that measures electric current, voltage, or power using two coils that make magnetic fields
How Sensitive
- Specialized
1
9.2
- Specialized
1
4.1
Surface Forms
Morphology
Etymology
The word electrometer comes from the parts electro- and -meter. The electro- part goes back to a Greek word for 'amber', because early people saw that rubbing amber made things attract, and -meter means 'measure', as in thermometer. So an electrometer is a tool that 'measures' electric 'charge' or 'voltage' very carefully, often without taking any current from what it tests.