active electrode

A pentode is an electronic device having five active electrodes.

Note that potential of the working or active electrode is space charge sensitive and this is often used.

This risk is eliminated by utilizing active electrode monitoring.

A nonode is a type of thermionic valve that has nine active electrodes.

This two-grid tube is called a tetrode, meaning four active electrodes, and was common by 1926.

Sensors: The first intendiX system, released in 2009, allowed users to work with either passive or active electrodes.

The electric current flows from the active electrode, through the body to the return electrode, and then back to the electrosurgical generator.

The metal ions will migrate away from the filament, back into the electrolyte, and eventually to the negatively charged active electrode.

As the active electrode was moved from one tiny clump of cells to another, patients reported hearing different songs, fragments of symphonies or familiar voices.

Two active electrodes are placed at or near vertex and at ipsilateral earlobe/mastoid with ground at low forehead.

The shut-off technology, known as active electrode monitoring, costs less than $1,000 per instrument, about the same list price as comparable traditional devices without the safety feature.

This is because active electrodes feature amplifiers and other electronics within each electrode, whereas passive electrodes first send brain signals along cables before amplification.

In such DC measurements, it is necessary to use electrochemically active electrodes to provide the necessary positive charges on one side and negative charges on the other.

While both of these electrodes require electrode gel, like conventional electrodes, the active electrodes do not require skin preparation and are more robust to external noise.

In the early 1990s Babak Taheri, at University of California, Davis demonstrated the first single and also multichannel dry active electrode arrays using micro-machining.

The active electrode array is an integrated system made of an array of capacitive sensors with local integrated circuitry housed in a package with batteries to power the circuitry.

Clinicians record the surface electromyogram (SEMG) using one or more active electrodes that are placed over a target muscle and a reference electrode that is placed within six inches of either active.

In skin potential, a therapist places an active electrode over an active site (e.g., the palmar surface of the hand) and a reference electrode over a relatively inactive site (e.g., forearm).

One domain of classification of vacuum tubes uses the number of active electrodes, neglecting the filament or heater in devices with indirectly-heated cathodes (where the heater is electrically separate from the cathode).

Parameters needed by the internal unit include the pulse amplitude, pulse duration, pulse gap, active electrode, and return electrode that are used to define a biphasic pulse and the stimulation mode.

But Kaiser does have the issue on its watch list for possible future action, and some V.A. hospitals have decided on their own to invest in the active electrode monitoring technology, which is made by a small company called Encision.

The target analyte is involved in the reaction that takes place on the active electrode surface, and the reaction may cause either electron transfer across the double layer (producing a current) or can contribute to the double layer potential (producing a voltage).

Since current density is higher in front of the smaller electrode, the heating and associated tissue effects take place only (or primarily) in front of the active electrode, and exact position of the return electrode on tissue is not critical.

When a negative bias is applied to the inert electrode, metal ions in the electrolyte, as well as some originating from the now-positive active electrode, flow in the electrolyte and are reduced (converted to atoms) by electrons from the inert electrode.