ground noise


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ground noise

[′grau̇nd ‚nȯiz]
(engineering acoustics)
The residual system noise in the absence of the signal in recording and reproducing; usually caused by inhomogeneity in the recording and reproducing media, but may also include tube noise and noise generated in resistive elements in the amplifier system.
(geophysics)
In seismic exploration, disturbance of the ground due to some cause other than the shot.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
In the Signal Corps, ground noise refers to the interference radio operators frequently encounter when transmitting or receiving a message.
Where two wire and three wire worlds meet, there is the possibility of ground noise current problems.
For example, the ground noise temperature [T.sub.ground]([ohms]) is approximately zero when pointing straight up into the atmosphere.
By using a simulation tool like EMIStream, electrical designers can easily understand the advantage of using embedded capacitors in PCBs to reduce power and ground noise, and to improve power distributions.
Common-mode noise, or ground noise, appears between the neutral and ground wires.
Separate multipin analog and digital grounds are provided to prevent ground noise from affecting digitization.
And Coun Stephens said there were concerns over the creation of more ground noise once a relocated engine testing facility is expanded at Elmdon.
And how does a balanced circuit reject ground noise? Let's first look at a conventional single-ended circuit with ground-induced noise.
The 10A, 270 V DC relay features short-circuit/overload protection to prevent damage to system components, assemblies and system wiring; optical isolation to isolate control circuits from load transients and eliminate ground loops and signal ground noise; and low off-state leakage current for high off-state impedance.
This minimum separation ensures good voltage to ground noise decoupling." The patent states that a "substrate of 5 mils is useful since the standard manufacturing practice is to provide a 5 mil separation between a ground plane and a voltage plane of conductive copper.