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A current-carrying twisted pair is superior to parallel conductors, but is of limited effectiveness in reducing electromagnetic radiation. Correspondingly, the twisted pair is limited in avoiding unwanted pickup of external H-fields (D.C. to 100 KHz).
Inter-8® Weave Cable substantially reduces magnetic field pickup and radiation compared with conventional twisted pair cable. Our cable involves four separate conductors braided into interlocking loops and is a patented design of Magnetic Shield Corporation. In application, adjacent conductors 90º apart are connected together, effectively providing a two conductor circuit.
Because the Inter-8® Weave Cable design incorporates parallel conductors, the cable provides double the current carrying capacity of a two wire cable of the same AWG size. In contrast to conventional twisted pair, INTER-8 WEAVE does not kink or untwist when left free.
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Inter-8® Weave Cable has applications to many interference problems. Current-carrying conductors generating interference fields can be replaced with INTER-8 WEAVE cable to substantially reduce radiation. In low impedance circuits where external interference results in disturbing signals, Inter-8® Weave Cable will reduce the circuit sensitivity to the external fields. Among typical applications are cable connections to strain gages, thermocouples, photoelectric detectors, audio coils and transformers, piezoelectric transducers and preamplifiers.
SPIRA-SHIELD is flexible conduit that provides high permeability magnetic shielding for sensitive cables and conductors. Constructed of .010" thick CO-NETIC AA Alloy, SPIRA-SHIELD provides greater attenuation than braided sleeving and also furnishes physical protection. Among typical applications are ground support and communication equipment, shipboard control systems, audio-level interconnections, sensitive instrumentation and aerospace apparatus.
Co-Netic® Braided Sleeving, constructed of 36 or 34 AWG CO-NETIC AA high permeability wire, provides superior flexibility compared to foil that is spiral or channel wrapped around cable.
CO-NETIC AA wire in .005" diameter is widely used in magnetic shielding braid applied over cables. All gauges have applications where high permeability, low coercive force and ferromagnetic properties are required. CO-NETIC AA wire is corrosion resistant and has an affinity for solder. Meets MIL-N-14411, Composition I.
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Protecting sensitive equipment from external magnetic interference can assure optimum performance and extend apparatus life. Custom-designed to fit user needs, our ROOMS & ENCLOSURES can also provide a useful degree of RF shielding.
We provide many different shapes and sizes of cryogenic & vacuum shielding CHAMBERS, up to 8 feet in diameter. Constructed of CO-NETIC AA alloy, these shields provide practical, durable solutions to problems of magnetic interference in laboratories or industrial environments.
Our ZERO-GAUSS CHAMBERS are fabricated from high permeability CO-NETIC AA alloy in a series of two or more concentrically spaced magnetic shields. Scientific, industrial and commercial applications include testing, calibration of instruments, and product manufacture.
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Mica has a high dielectric strength and excellent chemical stability, making it a favored material for manufacturing capacitors for radio frequency applications. It has also been used as an insulator in high voltage electrical equipment. It is also birefringent and is commonly used to make quarter and half wave plates.
We use transparent natural mica, which has been important in the electrical/electronic industry in such applications as electron tubes,sight windows, capacitors, generators, and insulating spacers for semiconductors.
Mica is very stable at high temperatures, and possesses some attractive electrical properties. It is flexible, chemically inert, and has good mechanical strength perpendicular to the lamina.
We provide mica parts fabricated to your specifications and drawings.
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Magnetic Shield Corp.'s Lab Kits are highly effective in solving design problems of magnetic interference. (D.C. to 100 kilohertz). By adding MU METAL, CO-NETIC and NETIC layers until desired attenuation is achieved, minimum material requirements can be determined. This results in significant cost savings in the final design.
An important advantage of the "hands-on" shielding approach is that changes in a circuit layout, shield configuration, power levels and component orientation are easily evaluated. The Lab Kit permits magnetic shields to be designed and modified until required performance is obtained. The prototype then serves as a model for production.
As a special offer to introduce you to the exceptional characteristics of our CONETIC and NETIC proprietary alloys, Magnetic Shield has assembled the LK110-IS Lab Kit with Gaussmeter. Containing all the same wide variety of CONECTIC and NETIC alloys as both the LK-120 and LK-110 Lab Kits, the Internet Special Lab Kit also contains a Gaussmeter, This combination of materials and meter is offered for a reduced cost of $199.95.
The EF-401 Gaussmeter is a cost effective, handheld, single-axis magnetic field meter that provides the user with a quick, reliable and easy way to measure electromagnetic field (EMF) radiation levels.
Purchase an LK-110-IS and save 10 per cent off the retail price of the Kit and the Gaussmeter.
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MU METAL® offers important electromagnetic field shielding characteristics, including very high magnetic permeability - its ability to absorb magnetic energy. The unique properties of this family of alloys results in the highest possible attenuation, making these shielding alloys the materials of choice for reducing low-frequency electromagnetic interference (EMI).
MU METAL® is a trademarked brand of Magnetic Shield Corporation. MU METAL® meets MILSPEC 14411C, composition 1. When the specification or the application calls for a magnetically soft or high permeability material, MU METAL® can frequently be successfully applied.
MU METAL® magnetic shielding prevents magnetic fields from reaching areas where they would cause magnetic interference. Magnetic shielding is used around either the source of interference, to prevent electromagnetic radiation from leaving a device; or more typically, around a sensitive device, to prevent the electro magnetic interference (EMI) from disrupting normal operations.
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Like an unseen virus, magnetic interference can infect the systems of any medical electronic product or equipment. When medical devices must render the clearest, sharpest "image" possible by translating magnetic fields into digital data, magnetic shielding concerns, and image clarity issues are magnified.
As "the preferred source" of magnetic shielding for more than 65 years, Magnetic Shield Corporation has provided custom shield design assistance to many engineers, designers, and manufacturers of medical imaging devices, as well as R&D for future medical apparatus.
Our foundation of EMI engineering and our reputation for quality dates back to the earliest days of medical imaging, when Magnetic Shield provided shields installed around the first Cathode Ray Tubes in early televisions and X-ray monitors. As electonics and imaging have progressed through the decades, so too, has Magnetic Shield. We have participated in many advancements, continually rising to challenges presented by technology advancements.
Our proprietary materials MU METAL®, CO-NETIC® and NETIC® have been designed specifically for magnetic shielding. All are stocked, in sheet and foil of various thicknesses and widths. We also stock a vast array of wire, cable, conduit and braided sleeves. We can provide these specialty materials, or custom manufacture simple and complex magnetic shield shapes for you.
Medical equipment and products are one of the largest channels within our business, which make us experts in this field. For over 67 years, Magnetic Shield Corporation has been "the preferred source."
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Dexter R-Mag™ Magnetron,U.S. Patent 5,865,970
UP TO FOUR TIMES MORE PRODUCTIVITY THROUGH ENHANCED MAGNETICS
Our patented quadrature design produces higher fields than conventional magnetrons thus lowering your costs.
>The higher fields allow for thicker targets. Thicker targets can drastically increase run time between target changes while saving thousands in target costs.
>Magnet assemblies are built with carefully matched magnets that are calibrated to within +/- 1%.
>Magnet assemblies can be adjusted in any location to obtain the desired uniformity profile along the length.
>Magnet assemblies are designed for direct exposure with the cooling water.
>Magnets are mechanically protected with SS cladding.
>Magnet bar is designed with SS to minimize corrosion.
>Turn around portion of the assembly is designed for simple replacement. This allows us to work with the end user to optimize the turnaround erosion for maximum target utilization. This saves time and money! The replaceable turnaround also allows the end user to quickly repair and replace this portion of the bar if it becomes damaged.
>Readily adjusted to run with the larger ID targets
>Each magnet bar is individually mapped and certified to meet the uniformity requirements.
>Optional: Unbalanced or balanced magnetrons
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Dexter's patented circular magnetron guns (T-Guns™) have been specifically engineered for the demanding requirements of data storage media producers. Integration with a new system or retrofitting an existing system is facilitated by our innovative, patented design and control interface.
>Programmable speed: 0 to 500 RPM
>Superior mechanical robustness to withstand the high mechanical loading created by the high strength manget array/target interaction
>High radial anisotropy at ID, MD and OD during sputter
>Programmable magnet phasing
>Power: 120 VAC 60 Hz, 50Hz
>Optimized for dual cathode sputtering
>Designed to retrofit Intevac® 250B and Canon ANELVA 3010 systems
>Typical Deposition Rate: 61 A/kWsec at 3 kW
>Sputter power 3 kW
>Station includes two rotary mechanisms, vacuum chamber, target clamps, spacers and stand-offs
>Simplified, lower cost, rotating magnetron system
>Robust mechanical structure will work with low PTF SUL materials
>Programmable recipe variables include: rotational speed and phase angle
>Dexter target removal/load tool required
*Note that Dexter also offers the patented Z-Gun Magnetron Sputter Source.
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Ferrous materials and tools can become magnetised due to a number of causes, such as during sanding, grinding,
polishing, welding, punching or cutting operations. However, this may also occur de to direct contact with (magnetic equip-ment), or even simply as a result of friction during processing. Whatever the cause, the result is the same: magnetised products that stick to one another and attract dust and swarf.
Besides demagnetising equipment Goudsmit also manufactures lifting magnets. For more information: please click here:
http://www.goudsmit-magnetics.nl/index.php?id=58&L=0
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Handheld demagnetizers
These handy appliances are suitable for the removal of local magnetic fields which are situated on the surface. Hard magnetic spots are also removed by the powerful field.
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The co-axial coupling consists of three parts. The outer hub consists of a series of rare earth magnets that are ground, potted and attached to the inside diameter of a steel hub. The inner hub consists of a series of rare earth magnets that are ground, potted and attached to the outside diameter of a steel rotor. The inner hub is then completely sealed in stainless steel to protect the magnets and rotor from damage or corrosive substances. Typically there is a radial air gap of up to .275" (7mm) between the inner and outer hubs. Conventional bores and keyways are used to drive the inner and outer hubs.
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Magnetic Technologies Ltd. offers custom payoff stands and devices that maintain constant tension through the use of permanent magnets.
• No belts or chains are used
• Available in several sizes.
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Dexter's rotating magnetron guns (Z-Guns™) have been specifically engineered for the demanding requirements of data storage media producers. Integration with a new system or retrofitting an existing system is facilitated by our innovative, patented design and control interface.
>Programmable speed: 0 to 500 RPM
>Superior mechanical robustness to withstand the high mechanical loading created by the high strength manget array/target interaction
>High radial anisotropy at ID, MD and OD during sputter
>Programmable magnet phasing
>Power: 120 VAC 60 Hz, 50Hz
>Optimized for dual cathode sputtering
>Designed to retrofit Intevac® 250B and Canon ANELVA 3010 systems
>Typical Deposition Rate: 61 A/kWsec at 3 kW
>Sputter power 3 kW
>Station includes two rotary mechanisms, vacuum chamber, target clamps, spacers and stand-offs
>Magnet array capable of 2.625 in (67 mm) of linear travel
>Easy target removal without special tooling
>Programmable recipe variables include: rotational speed, phase angle and linear position
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Dexter's rotating magnetron guns (Z-Guns™) have been specifically engineered for the demanding requirements of data storage media producers. Integration with a new system or retrofitting an existing system is facilitated by our innovative, patented design and control interface.
>Programmable speed: 0 to 500 RPM
>Superior mechanical robustness to withstand the high mechanical loading created by the high strength manget array/target interaction
>High radial anisotropy at ID, MD and OD during sputter
>Programmable magnet phasing
>Power: 120 VAC 60 Hz, 50Hz
>Optimized for dual cathode sputtering
>Designed to retrofit Intevac® 250B and Canon ANELVA 3010 systems
>Typical Deposition Rate: 61 A/kWsec at 3 kW
>Sputter power 3 kW
>Station includes two rotary mechanisms, vacuum chamber, target clamps, spacers and stand-offs
>Magnet array capable of 2.625 in (67 mm) of linear travel
>Easy target removal without special tooling
>Programmable recipe variables include: rotational speed, phase angle and linear position
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These electromagnetic holding magnets are used in electrically operated independent clamping devices to hold open fire protection doors and exits. The doors are held open either in a fixed position or in a manually adjustable angle until they are electrically released.
Magnets for EX applications with ATEX certification are available.
Size: 42 - 70 mm with quality control
Holding force: 300 - 1568 N by quality controlled
goods
Rated torque: 1.5 - 3.0
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Dexter is an authorized distributor of ferrite cores for EMI applications. Our product line includes top manufacturers, such as:
>Fair-Rite Products
>TDK
>EPCOS
>Magnetics, Inc.
>Ferronics
>Acme Electronics
We have the industry’s largest in-stock inventory of:
>Round Cable EMI Suppression Cores
>Split Round Cable EMI Suppression Cores
>Round Cable Snap-its
>Flat Cable EMI Suppression Cores
>Flat Cable Snap-its
>Toroids
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Dexter is an authorized distributor of ferrite cores for EMI applications. Our product line includes top manufacturers, such as:
>Fair-Rite Products
>TDK
>EPCOS
>Magnetics, Inc.
>Ferronics
>Acme Electronics
We have the industry’s largest in-stock inventory of:
>Round Cable EMI Suppression Cores
>Split Round Cable EMI Suppression Cores
>Round Cable Snap-its
>Flat Cable EMI Suppression Cores
>Flat Cable Snap-its
>Toroids
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These inline vibrators are AC vibratory drives with integral halfwave
rectification in which the force effect of an electromagnetic
alternating field is used to generate a curving oscillatory motion.
For individual adjustments we recommend a control box Type 33 43303 + 04B00.
Standard Rated Voltage: 230 V AC, 50 Hz
Vibration amplitude: 1 - 6 mm
Load: 0.1 - 17 kg
Power: 14 VA - 3520 VA
Duty cycle: 100%
Other input supply voltages and frequencies available on request
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We offer complete manufacturing of custom cabinets, boxes and enclosures for shielding unwanted EMI. Magnetic Shield Corporation delivers the highest quality shielding enclosures, fabricated to meet your design criteria. We fabricate engineering prototypes, small test runs, and annual production volumes to meet your OEM delivery schedules.
It is this level of expertise that you draw upon when you rely on Magnetic Shield Corporation, an ISO 9001:2000 Certified company, to mitigate your EMI problems. Our staff possesses an intimate understanding of the complexities of creating quality custom magnetic shielding. They know how to maximize the magnetic shield's effectiveness through the most efficient design, the best choice of material and the manufacturing process itself.
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Inter-8® Weave Cable has applications to many interference problems. Current-carrying conductors generating interference fields can be replaced with INTER-8 WEAVE cable to substantially reduce radiation. In low impedance circuits where external interference results in disturbing signals, Inter-8® Weave Cable will reduce the circuit sensitivity to the external fields. Among typical applications are cable connections to strain gages, thermocouples, photoelectric detectors, audio coils and transformers, piezoelectric transducers and preamplifiers.
SPIRA-SHIELD is flexible conduit that provides high permeability magnetic shielding for sensitive cables and conductors. Constructed of .010" thick CO-NETIC AA Alloy, SPIRA-SHIELD provides greater attenuation than braided sleeving and also furnishes physical protection. Among typical applications are ground support and communication equipment, shipboard control systems, audio-level interconnections, sensitive instrumentation and aerospace apparatus.
Co-Netic® Braided Sleeving, constructed of 36 or 34 AWG CO-NETIC AA high permeability wire, provides superior flexibility compared to foil that is spiral or channel wrapped around cable.
CO-NETIC AA wire in .005" diameter is widely used in magnetic shielding braid applied over cables. All gauges have applications where high permeability, low coercive force and ferromagnetic properties are required. CO-NETIC AA wire is corrosion resistant and has an affinity for solder. Meets MIL-N-14411, Composition I.
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