mag2011
 
Magnetics Magazine


eNewsletter

August 2010

In This Issue:

mr

PRODUCT NEWS

  • MEDER electronic, Inc. –Reed Sensor Series Perform Beyond Their Size Class
  • Alpha-Core Introduces new Line of Amorphous Magnetic C-Cores for High Frequency Electronics Applications
  • Low-Noise Aerospace-Qualified Magnetometer
  • Quantum Design Unveils New Physical Property
  • High Sensitivity Telecoils for Hearing Aid Compatible with Mobile Phones
  • New Tools Boost Performance of Superconducting Magnet Simulator
  • New Lines of Common Mode Toroid Power Inductors/Chokes
  • Piezo Ceramics for Medical Applications

INDUSTRY NEWS

  • MAGNETICS 2011: Call for Presentations Deadline Extended
  • Market Report: Global Permanent Magnet Industry 2010-2020
  • Adams Magnetic Offers VAC High-Performance Nanocrystalline Cores

EVENT LISTING

  • The Technology World in One Location

MAGNETICS BUSINESS & TECHNOLOGY

  • Download the Summer 2010 Issue

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Online Buyers Guide

 
Sponsored Announcement - Click here to have your company's message featured!

GMWAsahi EM-3242 Magnetic Angle Sensor Now Available from GMW

The EM-3242 is a very small, 6 pin, SOIC IC which enables non-contact, low wear, full 360 degree, angle sensing utilizing a simple two pole magnet.

Operation is from a nominal 3 V source with a ratio metric, analog output of 0.3 V to 2.7 V. Power draw is 8 mA in wake mode and 1 uA in sleep mode.

Contact GMW for engineering support and Engineering Kits for applications of the EM-3242 to remote readout of valve, arm, vane and meter position; gas and fluid metering; non-contact operator controls; or servo position control. Unit price at quantity of 5,000 is $2.26.

Further information is available www.gmw.com

PRODUCT NEWS

mederMEDER electronic, Inc. –Reed Sensor Series Perform Beyond Their Size Class
Now offered in two Form B versions, the MK24 series Reed Sensors achieve a minimum life expectancy of 50 million operations at 5 V, 5 mA, 100 Hz while measuring only 5 mm x 1.8 mm x 2.2 mm.  At 50 million operations, the MK24’s base reed switch, a 4mm KSK-1A04 unequivocally surpassed all other reed switches in its size class.  Though ultra miniature, the MK24 is constructed of a rugged overmolded package containing the hermetically sealed reed switch. 

In addition to their high performance and ultra miniature size, the MK24 require no external power to operate making them especially suitable in applications with low power and space limitation requirements such as in portable medical and electronic devices.  These sensors are used as a control switch or non-contact magnetic proximity sensor for counting, position, limit and liquid level detection applications.

Choose from 3 surface mount lead designs in a SPST-NO (Form A) version: lead design 1 (straight cut axial lead), lead design 2 (Gull Wing) and lead design 3 (J Lead).  The MK24 is also available in lead design 2 or 3 in a SPST-NC (Form B) version.  The normally open (Form A) version sensors come in 5 contact sensitivity ranges (A, B, C, D, & E), while the normally closed (Form B) version is available in a B sensitivity only.  These reed sensors are RoHS compliant. 


alphacoreAlpha-Core Introduces new Line of Amorphous Magnetic C-Cores for High Frequency Electronics Applications
Alpha-Core, a division of Bridgeport Magnetics Group, Inc., has introduced a new line of Magnetic Amorphous C-Cores. With its improved magnetic properties, Amorphous Cores offer several advantages over cores made of Silicon Steel, Ferrite and Powdered Iron such as almost 50 percent size and weight reduction due to its much higher saturation induction. Its ultra-thin lamination thickness of one mil (25 um) results in much lower core losses. Amorphous Cores can operate at higher frequencies at the same flux level while conventional steel cores as the frequency increases must operate at lower flux densities and to compensate the designer must use larger size cores. Another advantage is a wide operating temperature range from -55°C to 130°C.

The properties of Amorphous C-cores make them highly suitable for transformers in Switching Mode Power Supplies (SMPS) operating at frequencies from 400 Hz to 20 KHz and inverters in Welding Equipment, Wind Turbines and Solar Panels. Other uses that benefit from Amorphous cores include output filter chokes in large SMPS, Power Factor Correction Chokes in UPS systems and High Power Lamp Ballasts. The amorphous magnetic alloy is made in a process in which molten metal is cast into thin ribbons.

Alpha-Core will stock Amorphous Cores with power ratings (Wa cm2) from 3.3 to 966.0. List prices start at $5.12 for the smallest size.


bartLow-Noise Aerospace-Qualified Magnetometer
Bartington Instruments has recently been taking enquiries from customers about the Mag629 three-axis magnetometer. Users of this magnetometer have traditionally been from the defense sector, perhaps not surprisingly since the Mag629 complies with a number of Military Standards, including those related to temperature and vibration.

However, the 629’s robustness means it is capable of operating in particularly harsh environments and its two-piece construction enables its use in an extremely wide range of applications. For example, the Mag629 is well suited for airframe compensation on standard aircraft but can just as easily be mounted on land or sea-based vehicles.

The three sensor axes are arranged to have a common point of intersection (concurrent), clearly defining the “center of measurement” of the magnetic field being examined. The tough and compact sensor head is normally separated from the electronics module by a one meter cable, but this can be modified, within certain parameters, to suit the customer’s requirements.

The Mag629 features low noise (<8pTrms/_Hz @ 1Hz), bandwidth of 1.1 kHz, ±75 μT full scale range, concurrent sensing axes, -55°C to 55°C continuous operating temperature range, two part construction, operates from a 28 V supply, and is tested to MIL-STD-202G, MIL-STD-810C, MIL-STD-810F and many others.


QDQuantum Design Unveils New Physical Property
Quantum Design has unveiled a new addition to its Physical Property Measurement System (PPMS) product line.

The PPMS DynaCool meets Quantum Design’s highest standards of cryogenic and magnetic sensitivity, automated system functionality and expandable customization. This cryo-free system uses a single two-stage Pulse Tube cooler to cool both the superconducting magnet and the temperature control system, providing a low vibration environment for sample measurements. In addition, it employs a unique He-based gas flow control system that provides rapid temperature cycling and accurate temperature control. The PPMS DynaCool also comes equipped with an integrated Cryopump used to pump out the sample space to a vacuum of < 10-4 Torr.

Boasting a standard temperature range of 400 K to 1.9 K and magnetic fields up to 14T, the PPMS DynaCool allows for a wide range of measurement options such as heat capacity, thermal transport and electrical transport. Additional measurement options include a vibrating sample magnetometer (VSM), VSM oven, dilution refrigerator and 3He refrigerator.


premoHigh Sensitivity Telecoils for Hearing Aid Compatible with Mobile Phones
PREMO enlarges its telecoil family with the new TP0602 series, a reliable and sensitive coil for applications in hearing aids.

The TP0602 is wound with thin copper wires less than 25 micron (up to 0.012 mm diameter) and inductance values between 40 and 170 mH. This telecoil achieves a high sensitivity to magnetic field in 1 kHz (operation frequency in this kind of devices). The ferrite core material provide a stable performance in a wide range of temperatures (-10ºC to 40ºC).

Its surface mounting device (SMD) configuration allows an easy integration in an automatic printed circuit board assembly process, avoiding handling of the piece that could damage winding wire of the piece. That makes this piece different regarding main existing telecoils, commonly with a pig-tail wires or “thru-hole” configuration (that requires an additional wave soldering process).

These components, included in most of existing hearing aid devices, work as a magnetic field sensor, turning the magnetic field into electric voltage as a standard microphone does with the acoustic energy. This allows the hearing handicapped people to receive the signal from a magnetic inductive loop located in public buildings and transports.

Telecoils are particularly useful for telephone communication because they permit the volume control of a hearing aid to be turned up without creating feedback, and background noise can be reduced especially when using cell phones in noisy places. The user can change the phone coil in manual or automatic way to create a magnetic field as intensive as to transmit the signal to hearing aid.

A hearing aid is compatible with mobile phones when meets the FCC’s technical standard for hearing aid compatibility and must have a telecoil. Since February 18, 2008, mobile phone manufacturers and service providers had to ensure that at least 50 percent of all handsets marketed in the US meet the requirements of ANSI C63.19:2006.

The quality and reliability of these telecoils has been evaluated positively for the main hearing aid manufacturers. PREMO´s telecoil product range offer different sizes to allow its inclusion in most hearing aids models in the market. These series, TC0502, TP0602, TC0902 and TC1102 are available also with “custom” electrics characters according to customer needs.


New Tools Boost Performance of Superconducting Magnet Simulator
Cobham Technical Services has delivered new modeling tools that extend the accuracy and speed of multi-physics finite element simulation used to develop superconducting magnets. The tools exploit advanced finite element meshing algorithms and other facilities to boost simulation accuracy while simultaneously halving simulation times.

The advanced finite element meshing algorithms and other tools were developed as part of the company's role in the UK's IMPDAHMA project. IMPDAHMA (Integrated Modeling Package for Designing Advanced HTS Materials Applications) - partially funded by the UK government's Technology Strategy Board - was led by superconducting magnet supplier Oxford Instruments whose aim was to obtain an integrated design and modeling environment. 

Three organizations collaborated in IMPDAHMA: Oxford Instruments NanoScience, Cobham Technical Services and The Institute of Cryogenics at Southampton University.  As well as leading the project, Oxford Instruments was responsible for manufacturing and testing sample magnets that included high temperature superconductor (HTS) materials and measuring material properties of composites. Southampton’s role was to obtain very precise measurements of the constituent materials at cryogenic temperatures – a crucial element to getting accurate simulation results – and also to validate the environment against Oxford Instruments’ tests. Cobham’s task was to develop its existing low temperature superconductor (LTS) simulation tools to include both LTS and HTS materials, while improving performance and accuracy.

The tools provide a direct link from the advanced superconducting magnet design and material know-how represented in Oxford Instruments' Magnet Design Database to the superconducting 'quench' solver in Cobham Technical Services' multi-physics Opera tool chain for the modeling, simulation, analysis and optimization of electromagnetic related equipment.

Understanding the quenching process - a rapid, highly non-linear and potentially dangerous change of state from superconducting to resistive mode - is critical for this design area because superconducting magnets operate close to their critical current for reasons of performance and cost. Accurate quench simulation depends on a complete specification of the wires, coils, materials and protection circuits used in the magnetic system.

Cobham Technical Services' work during the project has resulted in three new capabilities for Oxford Instruments. The most fundamental advance is in the finite element meshing algorithms that divide a 3D computer design model of a magnet down into smaller connected elements to allow numerical solution. Models can now be meshed using a 'mosaic' mixture of prism, hexahedral and pyramidal element shapes (as well as the tetrahedral elements that were available previously), to enhance the accuracy of the simulation solution. This mosaic meshing also improves the speed of the subsequent coupled multi-physics transient thermal and eddy current simulations.  Assembling the non-linear thermal equations at each time step is much more efficient, and eddy current skin effect in conducting formers can be captured with fewer elements. The transient thermal and electromagnetic simulations were also configured so that they can run in parallel on different processors to further improve speed of execution.

Cobham Technical Services also enhanced the capability of Opera’s electrical circuit modeling, including a brand new graphical interface, which describes the power, drive and protection circuitry that is essential to superconducting magnet operation (and current dissipation when a magnet goes into quench). And the company provided a direct link to Oxford Instruments' materials database, which represents the complex non-linear properties of superconducting materials.  A new materials database structure that will be integrated into a future version of Opera was developed to hold the wealth of materials information created in the project. However, this database is also extendable to hold materials data for many other electromagnetic design applications.

The new Integrated Modeling Environment that has resulted from the IMPDAHMA work has been validated by The Institute of Cryogenics. Oxford Instruments conducted tests on two high-field NMR (nuclear magnetic resonance) systems used for validation.  A 20 Tesla magnet with LTS coils was used initially, and an LTS magnet with additional HTS coil inserts (potentially capable of achieving a field of up to 25 Tesla) was used as new software tools and materials data became available. The tests showed very encouraging agreement between the real-world measurements and calculated values.

The new version of the Opera package that will incorporate most of these new resources will be released before the end of 2010.


prem

New Lines of Common Mode Toroid Power Inductors/Chokes
Prem Magnetics, Inc. has introduced several series of common-mode chokes for reducing unwanted common-mode noise signals on a power line. Comprising a total of 128 parts utilizing seven different mounting packages, the SPCM series covers inductance values ranging from 65.0 uHy to 120 mHy and current values ranging from 0.3 ADC to 30 Arms.

All of these common mode chokes utilize toroidal core construction that offers a small size and reduced EMI. Mounting styles are printed circuit board mount incorporating either through-hole or surface mount technology (SMT). Component orientation is configured for reduced height or reduced board real estate. Many of these chokes incorporate a winding separation spacer that provides 1 to 3 mm creepage distance for safety agency compliance, and all units use UL94V0 materials.

Package dimensions for these series range from 14.5 mm square by 10.8 mm Ht. to 40 mm by 40 mm by 19 mm Ht. Pricing ranges from $1.39 to $5.67 in production quantities.


Piezo Ceramics for Medical Applications
A new brochure from piezo specialist PI on medical applications of piezo ceramic actuators and components is available for download at:
http://www.pi-medical.net/Motion_Control_Medical_Design_Catalog.pdf

piezpPiezo motors and actuators have several advantages over classical motion control components. Examples are:

  • Sterile / high bake-out temperatures
  • No lubricants required,
  • Non-magnetic principle (MRI …)
  • Vacuum compatible
  • Smaller, higher force
  • Faster response
  • Direct linear motion w/o conversion losses.  

Application Examples

  • Piezo ceramics for pumps, nebulizers and atomizers
  • Piezo motors for micro liquid dispensing
  • Non-Magnetic piezo motors for Imaging / OCT, MRI
  • Scanning stages for bio-research microscopy
  • Hexapod robots for computer aided surgery
INDUSTRY NEWS

mag2011MAGNETICS 2011: Call for Presentations Deadline Extended!

Magnetics 2011 will be held March 1-2, 2011 in San Antonio, TX. This global event will be organized to provide numerous opportunities for networking including refreshment and networking breaks, discussion sessions, daily luncheons, reception, and tabletop or portable exhibits. The 2011 Magnetics Conference will again be co-located with the 2010 Motor, Drives & Automation Systems Conference.

GET INVOLVED –
Submit an abstract for the opportunity to speak and this industry-leading conference. We are looking for energetic and knowledgeable speakers to share their vision, ideas and solutions with our audience.

Magnetics 2011 will have 3 tracks to address the magnetics market including Rare Earths, Ferrites/Soft Magnetics, and Permanent Magnets. Each track is designed to cover the latest advancements in the applications, technology, materials, and economic development.

SUBMISSIONS SOUGHT FOR:


• Testing & Instrumentation
• Soft Magnetic Materials
• Permanent Magnets
• Power Electronics
• EMI / EMC / Shielding
• Magnetic Assembly & Mfg
• Brakes
• Motors
• Data Storage
• Nano Magnetics
• Ferrites
• Sensors & Motion Control

• Metrology
• Electro-Magnetic Software
• Magnetic Components
• Magnetic Equipment
• Specialized Coatings & Adhesives
• Biomagnetics
• Superconducting Magnets
• Cryogenics
• Magnet Recycling/Conservation
• Research & Development
• Transformers/Inductors
• Magnetic Circuit Design

Other Areas of Coverage to Include:
- Materials Pricing & Economic Development
- New Frontiers in Magnetics Research & Development
- Emerging Technologies that Utilize Magnetics

Submit your abstract for consideration in the program by Friday, August 27, 2010.   

Full-conference registration fees will be waived for all confirmed speakers.

SUBMITTING A PROPOSAL:
The basis of the proposal or the presentation may not be the promotion or marketing of a product.
Please Note: Proposals and Submissions will be accepted only electronically by email. Send your proposal in the body of your email letter and include supporting material and complete presentations as attachments.
**All submission guidelines must be included for abstract consideration. Visit the conference Web site for complete submission guidelines.

Submit abstracts to Heather Krier at heatherk@infowebcom.com or 720.528.3770 x129.

Interested in Exhibiting or Sponsoring? Contact Sue Hannebrink at sueh@infowebcom.com.

Magnetics 2011 will focus on the latest advancements in magnetic applications, technology and materials. Serving OEM developers of products that utilize magnets and magnet systems, design engineers, OEM developers involved in EMC technology and magnetic effects, magnetics manufacturers and integrators, and material suppliers in the magnetics industry.


Market Report: Global Permanent Magnet Industry 2010-2020
The report will be a bound book designed to be a resource for every sector of the Global Permanent Magnet Industry including producers, users, fabricators & distributors and industry suppliers.  It is a must have for anyone seeking to understand today's dynamics and planning for success in the ever-expanding Global Permanent Magnet Industry of tomorrow.

The authors (Walter Benecki, Walter T. Benecki LLC, Terry K. Clagett, WebMagnetics Inc. and Dr. Stanley Trout, Spontaneous Materials) have a combined involvement in the Global Permanent Magnet Industry totaling nearly 100 years.  Each author compliments the others, bringing a unique skill set and extensive experience in their individual area of expertise. This yields a first of its kind, comprehensive reference and resource.

Global Permanent Magnet Industry 2010-2020 will include more than 250 pages of useful data and information that will be essential for anyone involved in the Global Permanent Magnet Industry.  It will be a valuable resource for:

  • Strategic planning
  • Researching acquisitions, investments or divestments
  • Improving your overall "Magnet IQ"
  • Establishing or assuring a reliable magnet supply chain
  • Supplying goods and services to the industry

For a detailed outline click here. To order click here.


Adams Magnetic Offers VAC High-Performance Nanocrystalline Cores
Through a strategic partnership with VACUUMSCHMELZE (VAC) GmbH & Co KG of Hanau, Germany, Adams Magnetics Products Company becomes one of the first distributors to serve small to mid-size US companies.

Adams will provide customers with technical and commercial support, as well as US-based inventory for nanocrystalline cores, chokes, current sensors, current transformers and power transformer products. Adams offers VAC's cores and components to an expanding US market seeking nanocrystalline inductive materials for energy metering and energy conversion.

"VAC products are well suited for customers requiring higher energy efficiencies, higher operating temperatures, superior attenuation, smaller package sizes, enhanced shock and vibration, and zero magneto restriction," said Adams' national accounts manager, Ron Flores.

Flores explains that VAC nanocrystalline cores achieve permeability values greater than 100,000, which is 10 to 20 times greater than ferrite material solutions. The nanocrystalline core material has Curie temperature of 600ºC. VAC cores also allow saturation induction of 1.2 Tesla compared to only 0.4 Tesla for ferrite material. VAC core losses are typically 50 percent lower than the losses of ferrite compositions.

The linearity of VAC's material provides the accuracy necessary to meet energy-metering requirements of the American National Standards Institute (ANSI) and International Electrotechnical Commission (IEC) for energy metering. For energy conversion, VAC's material is increasingly used for high-frequency applications such as switched mode power supplies (SMPS), uninterruptible power supplies (UPS), adapters, AC/DC converters, welding equipment and solar inverters. Other applications for VAC's cores and inductive components include variable speed drives, battery chargers, welding equipment, HVAC, filters, automotive and aerospace.

EVENT LISTINGS  

The Technology World in One Location • October 19-20 • Dallas, Texas

Brochure

For the first time ever, six leading market-focused events will be co-located and sharing a combined exhibit hall in the Dallas area this fall. Each attracts leading technical professionals in their respective field. Together, it means a show floor populated by top design engineers, system engineers, manufacturing and facility managers, control and wireless communication specialists, and management executives from multiple industries and markets throughout North America.

The event is backed up by the programs of five separate in-depth annual conferences and more than 15 intensive workshops and master classes covering many of today’s hottest technologies and fastest-growing markets. Additionally, a series of free educational classes on energy efficiency for engineers and managers will take place on the exhibit floor for Energy Efficiency Expo.

Discover how and where to integrate new technologies into your systems to improve performance and efficiency, as well as new market trends and how they can impact your company. Find new suppliers and solutions for a variety of technology needs in your organization.

Battery Power 2010Advancements in Thermal Management
REMOTE Site & Equipment Management 2010Energy Efficiency Expo 2010
Antenna Systems 2010Electrical Manufacturing & Coil Winding Expo

MAGNETICS BUSINESS & TECHNOLOGY MAGAZINE  

summer10Download a PDF Copy of the Summer 2010 Issue of Magnetics Business & Technology Magazine

Features & Columns:

  • Spontaneous Thoughts: A Three Pronged Approach
  • Understanding Permanent Magnets
  • Global Permanent Magnet Industry 2010 - 2020
  • R&D: Children’s Cancer Center Magnetically Lengthens Nine-Year-Old’s Leg as She Grows
JOB LISTINGS
Upcoming Industry Events -- click here for the full Magnetics Calendar of Events

SEPTEMBER 2010

9/12 -9/16
ECCE 2010
Atlanta, GA


ECCEIEEE Energy Conversion Congress and Exposition (ECCE 2010)
September 12-16, 2010
Atlanta, GA

REGISTERATION NOWOPEN for the 2nd IEEE Energy Conversion Congress and Exposition (ECCE 2010) being held September 12-16, 2010 in Atlanta, GA.  ECCE 2010 combines the activities of the previous IEEE Power Electronics Specialists Conference with the technical sessions of the Industrial Power Conversion Systems Department (Electric Machines Committee, Industrial Drives Committee, Industrial Power Converter Committee, Power Electronic Devices and Components Committee) of the IEEE Industry Applications Society, but the event is greater than the sum of its parts. Application-focused sessions will be a feature of the technical program, taking into account real-world challenges such as energy conservation, carbon emission reduction, renewable energy and smart grid and sustainable/electrified transportation; while also moving the leading edge of the traditional component technologies forward.


Did you miss last month's Magnetics Industry eNewsletter? You can view previous issues HERE.
Please feel free to forward this message to friends or colleagues in the industry!

Submit editorial content to Heather Krier at
720-528-3770 x 129 or
HeatherK@infowebcom.com

For more information on advertising in the Magnetics Industry eNewsletter,
contact Sue Hannebrink at 330-725-5812

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