The electrometer changes this " high impedance signal " to a " low impedance signal " by using a voltage follower circuit.
42.
In 1872, Righi's electrometer was developed and was one of the first antecedents of the Van de Graaff generator.
43.
This field highly benefitted from the technical developments occurring in the capillary electrometer in order to use it for measuring subtle bioelectrical phenomena.
44.
In 1748, Nollet invented one of the first electrometers, the electroscope, which showed electric charge using electrostatic attraction and repulsion.
45.
Fifteen years earlier, her husband and his brother had developed a version of the electrometer, a sensitive device for measuring electric charge.
46.
The potential measurements are performed with the positive terminal of the electrometer connected to working electrode and the negative terminal to the reference electrode.
47.
The actual value of input resistance for modern electronic electrometers is around 10 14 ?, compared to around 10 10 ? for nanovoltmeters.
48.
Electrometers designed for use with ionization chambers may include a high-voltage power supply, which is used to bias the ionization chamber.
49.
Together with Patrick d'Arcy, he constructed in 1749 the first electrometer, a device for detection of electrical charges and voltages.
50.
Their work, including Marie's celebrated doctoral work, made use of a sensitive piezoelectric electrometer constructed by Pierre and his brother Jacques.
