Abstract: This paper presents a simple but efficient analog front-end circuit suitable for grounded capacitive sensors. Most of the practical capacitive sensors have an offset capacitance in parallel ...

Engineers usually have access to signal and function generators, as well as frequency counters and oscilloscopes, but they may not have access to capacitance or inductance meters. Using the test setup ...

Capacitors behave differently than resistors, where resistors allow a flow of electrons through them directly proportional to the voltage drop, and capacitors oppose changes in voltage by drawing or ...

Capacitive sensor technology has evolved markedly over recent years, underpinned by advancements in integrated circuit design and novel measurement approaches. These sensors function by detecting ...

Last month's column explained that AC current flowing through an inductance reaches its peak amplitude after the voltage. Lagging current is characteristic of an inductive circuit. Capacitive circuits ...

A recently filed patent (Publication Number: US20230314495A1) describes a capacitance measurement circuit that includes an analog front-end circuit, a parasitic capacitor, an analog to digital ...

Abstract: A robust signal conditioning circuit for capacitive sensors, based on the dual-slope and phase-sensitive-detection technique, is presented in this article. The circuit is designed to measure ...

Agilent Technologies Inc. introduced the industry's first power device capacitance analyzer that automatically characterizes power device junction capacitances using real operating voltages. Agilent ...

The capacitances of series capacitors add up like resistors in parallel: Below, we see that a series of capacitors of capacitances C1, C2, and C3 can be lumped together to form a single capacitor of ...

This is a capacitive touch sensing circuit based on the principle of capacitive voltage division, controlled by a PIC microcontroller. When a finger touches or approaches the sensing area, the ...

The video cassette tape was really the first successful home video format; discs just couldn’t compete back in the early days ...