We propose a potentially practical scheme to precisely measure the charge number of small
charged objects by using optomechanically induced transparency (OMIT) in optomechanical …

During the last three decades, the remarkable dynamic features of microelectromechanical
systems (MEMS) and nanoelectromechanical systems (NEMS), and advances in solid-state …

Residual current device is an important switch apparatus to ensure the safe and reliable
operation of the power distribution system. This article proposes a novel fault leakage …

A micromachined electrometer, based on the concept of a variable capacitor, has been
designed, modeled, fabricated, and tested. The device presented in this paper functions as a …

In low-dose-rate dosimetry using ionization chambers, the predominant component in the
uncertainty budget is a measurement uncertainty of current at a measurement range of …

This paper provides a comprehensive overview of the historical background, current status,
and future prospects related to the generation and measurement of small electric currents. It …

Almost all medical equipment related to the quality of human health in this world is based on
electronics with the ability to supply currents from 1 A to 10 fA. The quality of the results of …

An extremely sensitive vibrating reed electrometer is built, which has attocoulomb charge
resolution and subattoampere current resolution within a 1-min measurement. The input …

We have measured both the 0.01 Hz (quasi-dc) and 1.0 kHz values of a 20 pF room-
temperature air-gap capacitor as a function of the environment. Its dependence on pressure …

A current source based on a voltage ramp generated by a 16-bit digital-to-analog converter
and a differentiating capacitor has been developed in MIKES. The system is suitable for …