electromagnetic interference

(redirected from Electrical noise)
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electromagnetic interference

Any electromagnetic disturbance that interrupts, obstructs, or otherwise degrades or limits the effective performance of electronics and electrical equipment. It can be induced intentionally, as in some forms of electronic warfare, or unintentionally, as a result of spurious emissions and responses, intermodulation products, and the like. Also called EMI.
References in periodicals archive ?
This ensures the acquisition of multiple low amplitude cardiac signals in the presence of numerous sources of electrical noise and environmental interference aside from the large signals injected during ablation and pacing.
According to a study conducted by the Bar-Ilan University, brief arousals are probably triggered by the intrinsic electrical noise from wake-promoting neurons (WPN) in the brain.
We have simulated movement noise, constant electrical noise (similar to the lower trace in Figure 1), a combination of movement and electrical noise, no noise, and white noise with no PPG signal, all shown in Figure 6.
Most of the issues were related to wiring field-level device voltages to a low-voltage microcontroller, unavailability caused by communications failures, and electrical noise caused by inductive kickback with simple relay actions.
Having electrical signals in the range of microvolts implies that these are vulnerable to electrical noise, which interferes considerably in the electrical signal making it strongly dependent on the SNR, such as the potential curve of the SVET.
A standalone mode turns off wi-fi and Bluetooth to minimize electrical noise, while there are two ESS Sabre digital-to-analogue converters and amplifiers for each channel of audio.
Cypress offers TrueTouch capacitive touchscreen and touchpad solutions with industry-leading resistance to electrical noise, glove touch and water resistance, which combine with the Traveo MCU solutions to enable innovative and robust automotive HMI.
While the majority of shocks delivered are necessary to treat potentially fatal arrhythmias, studies estimate that approximately 20 percent of patients with implantable defibrillators may experience inappropriate shocks in response to a benign arrhythmia or electrical noise sensed by the device.
Our next-generation touch buttons are designed to provide optimal indication and lighting with excellent immunity to false triggering and superior electrical noise immunity, says Matt Hahn, technical marketing engineer for lighting at Banner Engineering.
A sensor with higher stability is not necessarily more accurate, but the larger signal it produces will tend to be less susceptible to lead-wire effects and electrical noise, as it generally improves the signal-to-noise ratio of the sensor interface.
The electrical noise suppression capacitors in the original ignition coils are likely to degrade over time.

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