capacitive coupling


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capacitive coupling

Electronics
The intentional or fortuitous transfer of energy within an electrical network by capacitance between circuit nodes.

Surgery
A potential endoscopic electrosurgical hazard, which occurs when electrical current is transferred from one conductor —e.g., an active electrode surrounded by insulation—into adjacent conductive materials—e.g., a trocar or tissue. The risk of tissue damage can be reduced by using low-power, low-voltage settings with intermittent rather than prolonged bursts, and by not operating near metal or conductive objects in the operative field.
References in periodicals archive ?
Ericsson's capacitive coupling uses water in the body to transmit data.
Bearing currents caused by stator-to-rotor capacitive coupling must be diverted from the motor shaft by providing a least resistance path to ground other than the bearings themselves.
Planes belonging to different logic families, if allowed to overlap, can cause capacitive coupling between the two planes, which is an EMI problem.
Whether we use a capacitor element to define the capacitance between a signal line to its return path, or the capacitive coupling to an adjacent signal line, capacitance is always positive.
These rely on the capacitive coupling technique, but use advanced measurement hardware and noise reduction software to improve the signal-to-noise ratio (SNR) for low-valued measurements.
The CS3 is an electric field device which effectively measures the capacitive coupling between the sensing electrode in the seat, the occupant, and the vehicle ground.
Encision has developed patented Active Electrode Monitoring ("AEM") laparoscopic instruments technology to prevent stray energy burns to patients from instrument insulation failure or capacitive coupling during laparoscopic electrosurgery.
The ratio, which determines the relative capacitive coupling, stays the same.
Advanced capabilities include a low-impedance mode that reduces ghost voltages from capacitive coupling, and a low-pass filter that eliminates switching noise from motor-drive measurements.
Powering and data communication through pseudo contact are provided at higher frequency via capacitive pads hidden under the protective plastic, known as capacitive coupling.
When you consider all the different effects lumped under the term signal integrity, it seems like there is a neverending list of problems to keep track of: ground bounce, ringing, crosstalk, switching noise, rail collapse, delta I noise, capacitive coupling, reflections, discontinuities, impedance miss matches, lossy lines, terminations, branches, deterministic jitter, stubs, decoupling capacitors, loop inductance, via inductance, controlled impedance, time delay, skin depth, return current, layer transitions, differential impedance, collapse of the eye, common signal termination, differential signal termination, overshoot, intersymbol interference, ring back, etc.
Without an electrosurgical safety device, capacitive coupling and insulation failure are two unwanted side effects that can result in patient injury since these injuries often happen outside the view of the video camera during a laparoscopic procedure.