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Electrical configuration allowing electricity to cross between grounded devices
In an electrical system, a ground loop or earth loop occurs when two points of a circuit are intended to have the same ground reference potential but instead
Ground_loop_(electricity)
Topics referred to by the same term
Look up ground loop in Wiktionary, the free dictionary. Ground loop may refer to: Ground loop (electricity), an unwanted electric current that flows in
Ground_loop
Type of critical issue in aircraft
In aviation, a ground loop is a rapid rotation of a fixed-wing aircraft in the horizontal plane (yawing) while on the ground. Aerodynamic forces may cause
Ground_loop_(aviation)
Unwanted sound associated with AC power
120 Hz), since the heavy ground currents are from AC to DC power supplies that rectify the mains waveform. (See also ground loop.) In vacuum tube equipment
Mains_hum
refrigerant is restricted to the heat pump itself with a secondary loop in the ground filled with a mixture of water and anti-freeze. The simplicity of
Direct exchange geothermal heat pump
Direct_exchange_geothermal_heat_pump
Noise reduction technique
and reproduction, ground lift or earth lift is a technique used to reduce or eliminate ground-related noise arising from ground loops in audio cables.
Ground_lift
System to transfer heat to/from the ground
than for other heating systems due to the requirement of installing ground loops over large areas or of drilling bore holes. Air-source heat pumps have
Ground_source_heat_pump
Unlike the closed loop in a Ground Source Heat Pump, which is used for small-scale residential heating and cooling, Closed-Loop Geothermal Systems are
Glossary of geothermal heating and cooling
Glossary_of_geothermal_heating_and_cooling
Electrical ground not connected to Earth
Educational Series, p. 38, ISBN 0-7641-1981-8 "Basics of Ground Loops | What is Ground Loop ?". Instrumentation Tools. 26 July 2016. Retrieved 26 December
Floating_ground
Reference point in an electrical circuit from which voltages are measured
classes floating ground ground constants ground loop (electricity) ground plane (radio antenna) ground wire (transmission line) isolated ground phantom circuit
Ground_(electricity)
Topics referred to by the same term
loop in Wiktionary, the free dictionary. A loop (knot) is one of the fundamental structures used to tie knots. Loop or LOOP may also refer to: Loop (1997
Loop
Electrically conductive surface, usually connected to electrical ground
the major reason for using large ground planes is to reduce electrical noise and interference through ground loops and to prevent crosstalk between adjacent
Ground_plane
Type of adapter
replace the outlet with a Ground Fault Circuit Interrupter (GFCI) breaker outlet. Cheater plugs are also used to break ground loops in audio systems. This
Three-prong_adaptor
Aircraft undercarriage
aircraft are much more susceptible to ground looping. A ground loop occurs when directional control is lost on the ground and the tail of the aircraft passes
Conventional_landing_gear
Random fluctuation in an electrical signal
circuit layout and grounding. Ground loops – When grounding a circuit, it is important to avoid ground loops. Ground loops occur when there is a voltage
Noise_(electronics)
Electrical cable with concentric conductors
in potential can be reduced by proper bonding to a common ground at the house. See ground loop. External fields create a voltage across the inductance of
Coaxial_cable
Type of radio antenna consisting of a loop or coil
A loop antenna is a radio antenna consisting of a loop or coil of wire, tubing, or other electrical conductor, that for transmitting is usually fed by
Loop_antenna
Electronic component
material on the outer models is non-conductive. Applications include ground loop elimination, signal source modulation leakage suppression, system signal-to-noise
DC_block
Standardized data communications cable
the jacks. The requirement for ground connections at both cable ends creates the possibility of creating a ground loop. This undesirable situation may
Category_6_cable
1986 breakup of American orbiter
there was a burst of static on the air-to-ground loop as the vehicle broke up, which was later attributed to ground-based radios searching for a signal from
Space Shuttle Challenger disaster
Space_Shuttle_Challenger_disaster
Isolating sections of electrical systems
effective method of breaking ground loops by preventing unwanted current from flowing between two units sharing a ground conductor. Galvanic isolation
Galvanic_isolation
Path an audio signal takes from source to output
5 outputs, preventing ground loops. Preventing ground loops is an extremely important function, as the severity of ground loops typically increases with
Audio_signal_flow
A multipoint ground is an alternate type of electrical installation that attempts to solve the ground loop and mains hum problem by creating many alternate
Multipoint_ground
Electric cable with metal jacket (shield) to prevent magnetic interference
of the shield to avoid ground loops. Best practice is to ground at both ends, but there is a possibility of ground loops. In airplanes, special cable is
Shielded_cable
Car tunnel system in Winchester, Nevada, US
The Vegas Loop, originally known as the Las Vegas Convention Center Loop (LVCC Loop), is a car tunnel system that serves the Las Vegas Convention Center
Vegas_Loop
Aircraft component to discharge static electricity
Precipitation (meteorology) Electrostatic discharge Triboelectric effect Ground loop (electricity) "This Is What Those Skinny Metal Rods Sticking Off Of A
Static_wick
Electrical component
energized conductors and earth ground. Suitably designed isolation transformers block interference caused by ground loops. Isolation transformers with electrostatic
Isolation_transformer
placed below the fuselage and just two feet above the ground, apparently gave it a tendency to ground loop when landing, and it was never ordered for production
Berliner-Joyce_XFJ
Process where information about current status is used to influence future status
as inputs as part of a chain of cause and effect that forms a circuit or loop. The system can then be said to feed back into itself. The notion of cause-and-effect
Feedback
Topics referred to by the same term
professional audio systems and electronic instrumentation to eliminate ground loop inconveniences and establish connection when only a two prong receptacle
Ground_lift_plug
Electronic amplifier, a circuit component
multi-channel applications. They can also eliminate measurement errors caused by ground loops. Amplifiers with internal transformers eliminate external isolated power
Isolation_amplifier
Cable with three ends
conflicting phantom-power supply problems, and makes ground loops very likely. The way around the ground-loop issue — this applies to active splitter/preamp
Y-cable
signals serially they could be AC-coupled (with a transformer) to prevent ground loop problems and EMI issues between the controller and the drives, which
Standard_Disk_Interconnect
Railway cab signaling technology used on high-speed rail
non-permissive marker's ground loop. When trains enter or leave the LGV from lignes classiques, they pass over a ground loop which automatically switches
Transmission_voie-machine
Electronic components
cables, which can cause interference. Using sheath current filters, ground loops causing mains hum and high frequency common-mode signals can be prevented
Sheath_current_filter
British WWII training and communications aircraft
terminated the return flight in Italy, 1,500 miles short of his goal, after a ground loop caused by a crosswind landing damaged the undercarriage. Italian bureaucracy
Percival_Proctor
Audio signal conversion device
contains a transformer to provide galvanic isolation that can eliminate a ground‑loop hum. Direct boxes are typically used with electric instruments or other
DI_unit
American aviator, one of the five founding pilots of the Israeli Air Force
pilots luckily did not experience). The S-199 also had a tendency to ground loop, which Modi Alon's airplane did upon landing, rendering it unflyable
Milton_Rubenfeld
devices allow a signal to be distributed to multiple destinations without ground loops or signal degradation. They are used for a number of common engineering
Distribution_amplifier
Standard for serial communication
pin on one end, and the ground pin on the other is not zero. This may also cause a hazardous ground loop. Use of a common ground limits RS-232 to applications
RS-232
Line of tower computers designed and manufactured by Apple
of dual processor G5 computers have noise problems. The first one is ground loop-based interference, which sometimes causes noise leaks into the analog
Power_Mac_G5
Method of interconnecting audio equipment
system they will be. This also prevents ground loop problems, by separating the shield/chassis from signal ground. Signals are often transmitted over balanced
Balanced_audio
Flight path putting aircraft in unusual attitudes
at the top of the loop. A loop can also be performed by rolling inverted and making the same maneuver but diving towards the ground. It can be visualized
Aerobatic_maneuver
American computer peripheral manufacturing company
Acromag designed industrial I/O components which has led to developing ground loops, RFI/EMI noise, and temperature drift. Many products are available with
Acromag
Electronic control system
A phase-locked loop (PLL) is a control system that generates an output signal whose phase is fixed relative to the phase of an input signal. Keeping the
Phase-locked_loop
Decrease in electric potential along the flow of current in a circuit
Electric power distribution Electrical resistivity and conductivity Ground loop (electricity) Kirchhoff's voltage law Mesh analysis Power cable Ohm's
Voltage_drop
Ratio of useful heating or cooling provided to work required
determining thermal conductivity will allow for much more precise ground loop or borehole sizing, resulting in higher return temperatures and a more efficient
Coefficient_of_performance
Closed-loop geothermal, a new type of geothermal energy system
Geothermal Systems and Closed-Loop Geothermal Systems. Closed-loop geothermal systems are not to be confused with the ground source heat pumps used for small-scale
Closed-loop_geothermal
Type of textile fastener
Velcro is a brand of versatile fastening devices, known as hook-and-loop fasteners, hook-and-pile fasteners, or touch fasteners, that allow two surfaces
Velcro
similar termination Angler's loop – knot which forms a fixed loop. Useful for fine or slippery line, it is one of the few loop knots which holds well in
List_of_knots
Public use airport in Medina County, Ohio
1998, a Cessna 170B was substantially damaged during an intentional ground loop during the landing roll at the Weltzien Skypark. After two unsuccessful
Weltzien_Skypark
Arcade game machine connector
harnesses. The harness connects directly to the PCB, having its own ground loop and power connection. In the case of Capcom's CPS-2 system board, the
Kick_harness
Rope loop and knot
A noose is a loop at the end of a rope in which the knot tightens under load and can be loosened without untying the knot. The knot can be used to secure
Noose
Voice-frequency transformer
application of an isolation transformer, and is often used to prevent ground loops or earth loops, which cause humming or buzzing in audio circuits. It also prevents
Repeating_coil
substantially damaged during landing at NOLF Silverhill. This was due to a ground loop. On 7 March 1955, a US Navy training aircraft assigned to Basic Training
Naval Outlying Landing Field Silverhill
Naval_Outlying_Landing_Field_Silverhill
Association football club in England
Didcot have played at Loop Meadow on the town's Ladygrove estate after the sale of their former Station Road ground in 1999. The ground boasts a main pitch
Didcot_Town_F.C.
Part of an aircraft
I aircraft used wooded skids on the wingtips to minimize damage on ground looping incidents. Several amphibious aircraft such as the Consolidated PBY
Wing_tip
Type of knot
Prusik (/ˈprʌsɪk/ PRUSS-ik) is a friction hitch or knot used to attach a loop of cord around a rope, applied in climbing, canyoneering, mountaineering
Prusik
Second crewed space flight in NASA's Project Gemini
The flight director says, get back in! (Kraft was not on the air-to-ground loop with the astronauts.) McDivitt: Gus, this is Jim. Got any message for
Gemini_4
Standardized digital audio interface
connectors. Optical provides electrical isolation that can help address ground loop issues in systems. The electrical connection can be more robust and supports
S/PDIF
Aircraft undercarriage
rises and the propeller strikes the ground, causing damage. The tricycle layout reduces the possibility of a ground loop, because the main gear lies behind
Tricycle_landing_gear
Phenomenon describing positive charge caused by ionising radiation
electrons, by picking up the collected secondary electrons through the ground loop. The Malter effect often arises in wire chambers (aka drift chambers)
Malter_effect
Airport
grass. It continued across the grass and struck an elevated taxiway. A ground loop subsequently occurred. The probable cause of the accident was found to
Salem_Airpark
1993 aviation accident in Hong Kong
approach lighting system (ALS) for runway 31. That action caused a "ground loop", making the plane slide off the left side of the runway into Victoria
China_Airlines_Flight_605
Type of knot
may be spilled or slipped instantly by pulling on the end to withdraw a loop. There is but one knot entitled to the name; any others having a similar
Slip_knot
Radio antenna that radiates extremely low frequency electromagnetic waves
giant loop between the electrodes through the ground, radiating ELF waves, so the ground is part of the antenna. To be most effective, ground dipoles
Ground_dipole
Public use airport in London, Ohio
pilot's inadequate compensation for the crosswind, which resulted in a ground loop and subsequent collision with a taxiway sign. On October 19, 2009, a
Madison_County_Airport_(Ohio)
Airport
properly install them. On June 19, 2007, a Cessna 195 was damaged during a ground loop on Runway 31 at Kellogg. The pilot reported that, on his third touch-and-go
W._K._Kellogg_Airport
United States Air Force general
when the powerful torque of the single-engined fighter forced him to ground loop after the Mustang veered off the runway. Olds shot down an Fw 190 in
Robin_Olds
Planned United States spaceflight (1967)
microphone. The stuck microphone was part of a problem with the communications loop connecting the crew, the Operations and Checkout Building, and the Complex
Apollo_1
legs of a closed loop are crossed to form a loop, the rope has taken a turn. A loop knot is a type of knot that creates a fixed loop on the rope, where
List_of_knot_terminology
Type of knot
for securing loads on trucks or trailers. The general arrangement, using loops and turns in the rope itself to form a crude block and tackle, has long
Trucker's_hitch
United States Air Force general
first solo flight without permission. On landing, the aircraft entered a ground loop, suffering minor damage. Shoop was convicted by court-martial and sentenced
Clarence_A._Shoop
Luftwaffe Chief of Staff
the Heinkel stalled and went into a horizontal cartwheel (akin to a ground loop, but at low altitude). It crashed and exploded, killing Wever and his
Walther_Wever_(general)
occur when passing over the ground loop adjacent to the Nf board. When trains enter or leave LGVs they pass over a ground loop that automatically switches
High-speed_rail_in_France
Knot used to form a fixed loop in the middle of a rope
butterfly loop, also known as lineman's loop, butterfly knot, alpine butterfly knot and lineman's rider, is a knot used to form a fixed loop in the middle
Butterfly_loop
Earthing system
computers, hospital equipment, and audio equipment. IG does not break ground loops, which can damage equipment like computers, printers, etc.. Interconnected
Isolated_ground
Type of stopper knot used in sailing and climbing
an additional turn before the end is finally tightened. The figure-eight loop is frequently used in climbing. It is the most common knot used to attach
Figure-eight_knot
Public school in Sacramento, California, United States
infrastructure includes electricity-generating photovoltaic panels, a geothermal ground loop system, low-velocity cooling displacement, and radiant slab heating.
Inderkum_High_School
Roller coasters at three Six Flags parks
enter the pretzel loop. In a pretzel loop, a train swoops up to a height of 78 feet (24 m) before diving toward the ground, looping back under the starting
Superman:_Ultimate_Flight
CIA covert airline from 1950 to 1976
loss of another UH-34 earlier that day when the helicopter performed a ground loop. On September 27, 1965, a C-45 N9574Z was shot down by small arms fire
Air_America_(airline)
Bus priority system used by London Buses
'bus detectors' either mounted on lampposts by the side of the road or ground loops, which detect transmission made by transmitters aboard buses. Selective
Selective_vehicle_detection
Once-dominant 10 Mbit/s Ethernet standard
grounding purposes. The cable should be grounded only at one end. Grounding the terminators at both may produce a ground loop and can cause network outages or
10BASE2
Proposed system for launching objects into orbit
A launch loop, or Lofstrom loop, is a proposed system for launching objects into orbit using a moving cable-like system situated inside a sheath attached
Launch_loop
Airport in Michigan, United States
runway. The probable cause of the accident was the pilot's inadvertent ground loop on the runway. The pilot and passenger were uninjured.[citation needed]
Gogebic–Iron_County_Airport
Chinese WWII fighter plane prototype
at Yangling. After circling the airfield, the XP-0 landed too fast, ground-looped and was written off. In the meantime, the American entry into World
Chu_XP-0
Type of knot
figure eight (a.k.a. inline figure-eight loop) is a loop knot. It is a knot that can be made on the bight. The loop must only be loaded in the correct direction
Directional_figure_eight
Austrian microphone and headphone manufacturing company
"warmth" to the sound. It featured a ground lift switch on the power supply, which can be useful in combating ground loop problems. Standard accessories included
AKG_(company)
Former airfield in Dobele, Latvia
registered as 12921/18 crashed landed at Petersfelde. It likely experienced a ground loop, causing the front landing gear to collapse and tipping the aircraft
Petersfelde_Airfield
Connection standard for electronic musical instruments
devices electrically separated from their MIDI connections, which prevents ground loops and protects equipment from voltage spikes. There is no error detection
MIDI
Optoelectronic temperature sensing device
underground mine, Australia Temperature profiles in ground loop heat exchangers (used for ground coupled heating and cooling systems) Distributed acoustic
Distributed temperature sensing
Distributed_temperature_sensing
twists upward and to the side followed by a dive toward the ground in a half-vertical loop. This element is commonly found on B&M and Gerstlauer roller
List of roller coaster elements
List_of_roller_coaster_elements
1950s British human-powered ornithopter
difficulties due to a 7 mph (11 km/h) crosswind, landed heavily and incurred a ground loop, which damaged the port wing. In 1964, it was reported that the Ikarus
Hartman_Ikarus
Type of knot
The overhand loop is a simple knot which forms a fixed loop in a rope. Made by tying an overhand knot in the bight, it can be tied anywhere along a rope
Overhand_loop
Rail tunnel through the Melbourne CBD
The City Loop (originally called the Melbourne Underground Rail Loop or MURL) is a piece of underground metropolitan rail infrastructure in the city centre
City_Loop
Technologies to store thermal energy
place an amount of pipe in a closed loop in the ground. They are also formed by drilling boreholes into the ground, either vertically or horizontally,
Thermal_energy_storage
1947 aircraft accident in Syria
an engine on the port wing not dug into the ground, dragging the plane in that direction in a ground loop and breaking it in two. There were 15 people
Pan_Am_Flight_121
Process in multitrack recording
loss or overemphasis, and ground-loop hum; thus there is sometimes a need for impedance conversion, level-matching, and ground alteration. Like running
Re-amp
Type of knot
figure-eight loop, (also known as a bunny ears, or a dog eared loop) is a type of knot that forms two parallel loops, and resembles the figure-eight loop. It is
Double_figure-eight_loop
American aircraft designer (1879–1954)
in Alfalfa County, Oklahoma. His first attempt at flight ended in a ground loop, which required $100 to repair. After repairs, Cessna attempted flight
Clyde_Cessna
travel, tourism, insurance
GROUND LOOP
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travel, tourism, insurance