electrometer

Electric charge can be directly measured with a device called an electrometer.

An electrometer is an instrument which serves to indicate and measure electricity.

A "log R" amplifier or electrometer is used to measure the resistance.

The collector current is measured in picoamps by an electrometer.

The engraving on the right shows a slightly different form of this electrometer, using four flat plates rather than closed segments.

Fifteen years earlier, her husband and his brother had invented the electrometer, a device for measuring extremely low electrical currents.

Berger connected these sensors to a Lippmann capillary electrometer, with disappointing results.

An electrometer is an electrical instrument for measuring electric charge or electrical potential difference.

He made almost the whole of his apparatus himself, and introduced several improvements, inventing, among other things, the gold-leaf electrometer.

Using a modified Peltier electrometer, he also carried out research in the field of atmospheric electricity.

He designed and built an electrometer which could detect the presence of energetic charged particles (or electromagnetic waves).

A device known as a "Benndorf electrometer" is used for atmospheric electrical measurements.

A more sensitive form of quadrant electrometer was developed by Frederick Lindemann.

To aid their work, they invented the Piezoelectric Quartz Electrometer.

As a recording device he first used the Lippmann's capillary electrometer, but results were disappointing.

This was dubbed the Hubbard electrometer.

This correlates to physical phenomenon since the reference electrode is connected to a high impedance electrometer.

For convenience of use, the vibrating reed assembly is often attached by a cable to the rest of the electrometer.

Taking the Measure: What's an electrometer?

Marie Curie began her investigations by testing a uranium ore called pitchblende with an electrometer.

Charged particles collected by the filter generate an electric current which is measured by the electrometer.

For ascertaining the electric state of the atmosphere near the surface of the earth, Volta's electrometer is sufficient.

Thomson observed that the electrometer registered a charge only when he deflected the cathode ray to it with a magnet.

Electrometer is often used to reconfirm the phenomenon of contact electricity leading to triboelectric sequences.

A further cause of charge leakage is ionizing radiation, so to prevent this, the electrometer must be surrounded by lead shielding.