Introduction Capacitive sensors work by detecting the change of capacitance introduced by the finger touching near the electrode. Such change is so small that detecting it unambiguously is challenging ...

Although a capacitive sensor can be as simple as a dedicated area on a printed-circuit board, many other options exist for system designers, including devices with integrated electronics.

Capacitive proximity sensor block diagram Capacitive proximity sensors use two metal electrodes or plates to generate a high-frequency electrostatic field.

Touchstone Semiconductor's Martin Tomasz explains how to interfact to capacitive touch sensors using basic 555-timer circuits.

Mobile devices such as tablets and cellphones generally require proximity sensors for Specific Absorption Ratio (SAR) qualification and on-ear detection. Capacitive sensing may be used to meet both of ...

This second capacitor is much larger than the first. Understanding how the voltage divides between these two capacitors in series is critical to understanding how the capacitive voltage sensor works.

Coming from an IT background to an AM transmitter site might leave you with a world of questions. Mark Persons explains the ...

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 ...

Recently, a research team led by Professor Huang Xingjiu at the Institute of Solid-State Physics, the Hefei Institutes of ...

But of course, in practice there is a bit more to it than that. [rbaron] explains exactly how capacitive soil moisture sensors work simply, clearly, and concisely.

Capacitive touch switches combine to simulate an analog control. In the last Sensor Sense we looked at capacitive touch switches used for on/off control. But these switches are also found in ...