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	Slip Rings
		Slip rings need continual maintenance to avoid degradation of the rotating electrical connection caused by normal wear and debris.
		Second, resistance through the rotating contact is less than one milliohm, which is much lower than the resistance of a slip ring.
		Fourth, slip rings require maintenance and Mercotac connectors are maintenance free.
	www.mercotac.com (298 words)

	Slip Rings - Sibley
		Slip rings are supplied in a variety of sizes, number of tracks and current ratings and are custom made to meet the specific requirements of each application.
		The slip rings are the disk or "pancake" type typically ranging from two to 15 tracks and from one to 12 inches in diameter.
		Disk type slip rings are compact and usually are less than half an inch thick from the top of the brush block assembly to the bottom side of the slip ring.
	www.sibley.com /sliprings.shtml (325 words)

	Slip Rings
		A slip ring is an electromechanical device that allows the transmission of power and electrical signals from a stationary to a rotating structure.
		Our large bore slip rings represent the union of new manu-facturing processes and technologies that enable us to offer large, mass-producible slip rings with advanced features, that are also cost effective.
		Slip rings are typically used in de-icing and blade-folding systems and main and tail rotors.
	www.polysci.com /SlipRings/slipring.html (629 words)

	Slip Ring Assemblies \| Michigan Scientific Corporation
		Because of their simplicity, slip ring assemblies are typically the first choice for making connection in rotating applications to strain gages, thermocouples, ICP accelerometers, RTD’s and other sensors.
		Slip ring assemblies designed to mount on the end of a rotating shaft and make electrical connection to strain gages, thermocouples, or other rotating sensors.
		For applications which require the slip ring assembly to be mounted directly on a rotating shaft and make electrical connection to strain gages, thermocouples, or other rotating sensors.
	www.michsci.com /Products/sliprings/slip.htm (632 words)

	Industrial Application: Slip Ring Testing
		Slip rings are basically circular, electrical “switches” and provide continuous signals and power to the rotating or revolving module, motor, or subassembly.
		Slip rings that generated voltage spikes exceeding the maximum allowable amplitude were returned for rework.
		Moreover, the procedure did not sufficiently characterize the true operation of slip rings nor guarantee their future performance because a waveform signature was impossible to obtain and store for subsequent evaluation.
	www.iotech.com /an67.html (1194 words)

	JQR 320.1 and 360.2 MG Sets and Slip Rings/Commutator Page 1
		Slip ring patterning is caused by cantilever vibration of the brush in the brush holder and can result from the following conditions: brush tension too low or too high, worn bearings, or rotor out of balance.
		Resurfacing is also required when slip rings contain deviations caused by excessive brush wear due to incorrect brush tension, worn bearings, or failure to change polarity of the brushes.
		Slip rings that do not resurface true, or that have imperfections too great to be removed inplace, will be delivered to the appropriate shop for lathe turning or slip ring replacement.
	www.uiitraining.com /b51a/300/3201and36021.htm (1486 words)

	Slip Ring Motors
		The slip ring or wound rotor motor is an induction machine where the rotor comprises a set of coils that are terminated in sliprings to which external impedances can be connected.
		The slip ring motor is used primarily to start a high inertia load or a load that requires a very high starting torque across the full speed range.
		Shorting the rings out on a slip ring motor with a high inertia load is not an option as the load energy must be dissipated in the rotor winding during start.
	www.lmphotonics.com /slipring.htm (1410 words)

	Pick-up elements for slip rings or rotary connectors - Patent 5865629
		It is known in the art to use a set of shaped "fingers"or pick-up elements mounted on a stationary component and adapted to ride in the grooves of a rotary element disposed within the housing of a rotary component.
		Parts 150 to 180 constitute the fixed or stationary component of the slip ring or rotary connector and are dimensioned so as to fit into a slot 190 of the housing 120 which contains the wired rotary element.
		1 is a schematic representation of a slip ring or rotary connector in accordance with the prior art;
	www.freepatentsonline.com /5865629.html (2275 words)

	SR10A/PE512 Slip Ring and Precision Encoder Assembly \| Michigan Scientific Corporation (Site not responding. Last check: 2007-10-29)
		The slip ring brushes and rings are made of precious metals, which minimize noise and enable the assemblies to be used for low level instrumentation signals.
		This slip ring accepts up to 10 circuit connections and incorporates an optical encoder that generates 2 outputs of 512 pulses per revolution (ppr) in quadrature and a third output of 1 ppr.
		For the weatherproof models, connections to the slip ring rotor are made through terminals or a military style connector.
	www.michsci.com /Products/sliprings/eos/sr10a_pe512.htm (299 words)

	Slip Rings
		The slip ring assembly comprises a spool, which rotates with the main body and fits snugly over the 3/8" IPT threaded pipe that serves as the "spine" for the payload, and a brush block mounted to a bearing housing which also supports the camera and compass platform.
		Each ring has a slot 0.025" wide and 0.05" deep cut into its inner surface to which are soldered #26 AWG bus wire stubs for connection to a #28-6 ribbon cable routed along the inner surface of the hollow ring-washer stack.
		After the ribbon cable conductors are soldered to their stubs, the rings and washers are pressed onto an acetyl tube 0.60" OD and 0.38" ID, having an axial groove 0.05" deep 0.30 wide on its outer surface to accommodate the thickness of the ribbon cable.
	www.eoss.org /faq/slip_rings.htm (758 words)

	Slip rings, Rotary Joints, Ring, Transmission system, Systems, Schleifring, Joint, Electrical slip
		Obviously the quality of the slip ring is a key determinant in the quality of the overall system.
		For continuous rotation of 360 ° slip rings or rotary joints are required.
		Besides contacting slip rings for the transfer of low data rates more and more non-contacting rotary joints are used, especially for the transmission of digital data at high bit rates.
	www.schleifring.com (883 words)

	Variable Slip Generators for Wind Turbines
		As we learned on the previous page, the motor (or generator) slip in an asynchronous (induction) machine is usually very small for reasons of efficiency, so the rotational speed will vary with around 1 per cent between idle and full load.
		The slip, however is a function of the (DC) resistance (measured in ohms) in the rotor windings of the generator.
		If you have a variable slip generator, however, you may start increasing its slip once you are close to the rated power of the turbine.
	www.windpower.org /en/tour/wtrb/varislip.htm (629 words)

	A Boyce's Electrical Webpage about AC Generators (Site not responding. Last check: 2007-10-29)
		In this way, brushes and slip rings provide a connection between the armature coil and an external load which uses the power supplied by the generator.
		The slip rings and brushes are better suited to low power due to the special nature of the materials used.
		The field coil is wound on a soft iron core and, with a steady dc voltage applied to the slip rings, a steady electromagnetic field is produced.
	ourworld.compuserve.com /homepages/boyce_smith/acgens.htm (553 words)

	Electrical Slip Ring Assemblies by United Equipment Accessories, Inc.
		An electrical slip ring is a rotary continuity device to transfer electrical power, control, and data from a stationary to rotating member.
		UEA slip rings have a center core stack of alternating conductor rings and insulators.
		Because a slip ring is simply a continuity device, it makes no difference whether the brushes rotate around a stationary core, or stationary brushes surround a rotating core.
	www.uea-inc.com /electrical_slip_ring_assemblies (714 words)

	Industrial Power and Control \| Slip Rings
		A slip ring is used to transfer electric current from a stationary unit to a rotating unit.
		These slip rings were first built to perform reliably in the hostile conditions encountered by construction equipment.
		These Slip Rings are reliable and efficient links carrying power or control signals from stationary to rotating elements.
	ipandc.com /rings.html (211 words)

	Fabricast Page (Site not responding. Last check: 2007-10-29)
		Cylindrical style slip rings utilize a rotor with a series of rings of the same outside diameter, cast or molded one next to the other, which are concentric to the axis of rotation.
		A pancake style slip ring rotor consists of a series of rings increasing in diameter, mounted on a platter, which are concentric to the axis of rotation.
		Ring to ring spacing is determined by the maximum operating voltage of each ring.
	www.fabricast.com /specs.html (681 words)

	MachineDesign.com: Off-road vehicles cozy up to CAN (Site not responding. Last check: 2007-10-29)
		This stack of slip rings is relatively easy to install, but it takes considerable time to assemble the wiring and harnessing that connects to the stack.
		Slip rings are generally not easy to install.
		When slip rings arrive at the machine builder, each stack is usually ready to bolt in place regardless of how many rings are involved.
	www.machinedesign.com /ASP/viewSelectedArticle.asp?strArticleId=57024&strSite=MDSite&catId=0 (1256 words)

	Army Technology - Air Precision - Electrical Slip Ring Assemblies
		Air Precision is world-leading designer and manufacturer of electrical slip ring assemblies for military ground systems where transmitting of electrical power and signals from a fixed to a rotating part is required.
		Slip ring activities started in 1962 and became the company’s core business including the widest range of slip rings available from any other manufacturer in Europe.
		Air Precision’s slip ring assemblies range from total integration of electrical, hydraulic, HF rotary joint and encoders in one single system down to miniature units.
	www.army-technology.com /contractors/rotary/air (563 words)

	Slip Ring Union Products for air, hydraulic, steam, water, and coolants.
		Slip rings are used for power, signal and data transfer and are readily available in 6,12,18,24 and 36 circuits.
		The custom rotary union assembly shown is a stock 2 passage rotary union to pass air with an integrated electrical slip ring rated for high amperage/voltage power circuits to run a motor.
		This slip ring is designed into our unions to allow for continuous 360 degree rotation of electrical power, signal and data transfer.
	www.rotarysystems.com /slipring.htm (339 words)

	Slip Ring Assemblies - Airflyte Electronics is a manufacturer and designer of (Site not responding. Last check: 2007-10-29)
		We are a designer and manufacturer of precision slip ring assemblies for use in commercial, industrial, and military applications.
		Airflyte slip rings are made in every configuration; ranging in size from.250 inch diameter capsules to large military assemblies with through bores in excess of 36 inches.
		Our slip rings have been used extensively in pan and tilt cameras, radar platforms, tracked vehicles, rate gyros, down hole equipment, packaging machinery, and in a host of other applications too numerous to list.
	www.airflyteelectronics.com /^AirFlyte/Home (266 words)

	Industrial Power and Control \| Slip Rings
		A slip ring is used to transfer electric current from a stationary unit to a rotating unit.
		These slip rings were first built to perform reliably in the hostile conditions encountered by construction equipment.
		These Slip Rings are reliable and efficient links carrying power or control signals from stationary to rotating elements.
	www.ipandc.com /rings.html (211 words)

	Rotor Slip Rings
		Rotor slip rings can be produced to existing specifications or, if you require a new rotor slip ring design, TEMCO will be happy to review your rotor slip ring drawings and provide you with a free custom quote.
		Rotor slip ring engineering revolves around both established rotor slip ring models and modified designs, and we also welcome the opportunity for custom rotor slip ring design and engineering.
		With complete rotor slip ring production and testing capabilities, TEMCO ensures that every rotor slip ring that leaves our facility is built to the highest quality standards.
	www.elecmat.com /electrical-copper/rotor-slip-rings.htm (267 words)

	Demac pruductions of electrical slip rings
		DEMAC 4-Port Electrical Slip Rings series "A4" is especially recommended for the rewinding of two twin-bonded thermoplastic cables on one side of the machine.
		electrical slip rings for air, grease, water, oil the rational use of flexible cables for compressed air, grease, oil, water or vapour both in workshops and in larger plants in general, requires appropriate equipment such as DEMAC "9000" series.
		The electrical slip rings series "MCR" is suitable to efficiently supply with power of low and medium intensity mobile telescopic machines such as access platforms, crane trucks etc. Automatic reeling by means of a ball-bearing spring.
	www.demac.it /hose_cable_reels_industrial/electrical_slip_rings.php (888 words)

	Slip Ring - FAQs
		First, unlike a slip ring, Mercotac connectors produce near zero electrical noise due to their unique design.
		Fourth, slip rings require maintenance and Mercotac connectors are maintenance free.
		Unlike standard brush slip rings, Mercotac connectors use liquid metal as the conductor.
	www.mercotac.com /html/faqs.html (1701 words)

	eddy current, metal testing, ndt, non-destructive testing, component testing (Site not responding. Last check: 2007-10-29)
		Slip Ring assemblies use advanced technology to transfer electrical signals from a stationary probe extension cable to the probe pusher's rotating take-up drum, reducing signal noise and system stress caused by cable twisting.
		Built to rigid specifications, the slip ring assembly is virtually maintenance free with an extended operating life.
		For optimum cable routing that reduces connector stress, all slip ring models have 90-degree connector fittings.
	www.zetec.com /products/probepushers/sliprings.asp (151 words)

	Lightning Protection of Revolving Aircraft Turrets (665)
		As one ring turns inside the other, the BeCu wheels roll along between them and, due to the spring compression, are constantly in contact with both the inner and outer rings.
		Slip rings and carbon brushes in rotating equipment can generally produce abundant dust, noise, and wear.
		Honeybee's ring assembly could offer a solution—especially for users who want to mount such a wear-resistant device on a hard-to-reach mast and who take no pleasure in replacing or repairing slip-ring/brush assemblies atop a mast.
	www.mdatechnology.net /techsearch.asp?articleid=665 (1177 words)

	Prizm Inc - Fiber (Fibre) Optic and Wireless Video and Data Multiplexers.
		Prizm offers a flexible slip ring design capability that allows us to tailor a slip ring to your specific power and signal requirements.
		All slip rings are available in pressure compensated versions that are purpose built for sub-sea applications.
		All Prizm slip rings are packaged in stainless steel housings and are supplied with an industry common flange bolt pattern.
	www.prizminc.com /slipring.asp (336 words)

	Trolex Engineering - Slip Ring Units
		Slip Ring Units have been a major part of the company product portfolio since trading began in 1972.
		A Trolex Slip Ring Unit is as reliable as any other electrical control or monitoring device using well established and proven designs.
		The slip ring circuits are of the sliding contact design with a minimum of two-brush contacts/slip ring.
	www.trolexengineering.co.uk /slipring.htm (329 words)

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