TechBlog

Test engineers in industries ranging from aerospace and defense to consumer electronics are facing the challenge of testing increasingly complicated designs with shrinking timelines and budgets. To address these issues, engineers and scientists are incorporating new test and measurement technologies that are capable of meeting complex design requirements without raising costs. National Instruments (NI) has identified five trends it anticipates will significantly influence the test and measurement industry over the next three years.”Companies are turning to the latest technologies including PXI, FPGAs and multicore processors to develop high-performance test systems that can meet consumer demand for higher-quality products,” said Eric Starkloff, National Instruments director of test product marketing.

“Fortunately, more technology vendors are developing industry-standard tools capable of solving problems that previously depended on expensive, dedicated test systems.”

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Robotic transporters are key when you want to automate welding of extremely large, heavy parts.  The maximum work envelope radius of an extended-reach robot is about 3-meters (9.84’).  If the parts you are welding require more reach than that, you need to find ways to move the robot to the part to provide optimal torch access to the welds.  A variety of robot transporters are available, and each type lends itself to a particular type of work flow.  How do you decide whether your application is best-suited for a linear floor- or wall-mounted track, linear overhead gantry or radial transport beam solution? 

Factors to Consider When Choosing a Robotic Transporter

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The all new MEMS G50Z High Performance Single Axis Gyro is a MEMS Rate Sensor with both excellent bias over temperature and low noise. Designed for commercial stabilization and aircraft applications, the unit utilizes standard +5V DC power and has a voltage output. The -200 model features a +/- VSG compatible signal.

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The all new A30 MEMS High Performance Single Axis Accelerometer offers excellent bias with a small light weight form factor and low power. Designed for commercial stabilization and aircraft applications, the unit utilizes standard +5V DC power and has a voltage output.

• Low Cost & High Performance MEMS Single Axis Accelerometer
• Excellent Bias ? 1mg
• Bias Repeatability ? 2.5mg
• Axis Alignment <15mrad
• Low Power < 5 mA Typical
• Light Weight < 10 grams
• Low Voltage +5V (single sided power)
• Bandwidth 40Hz / 100Hz
• Voltage Output
• Reference Voltage
• Internal Temperature Sensor
• Self Test
• Shock Resistant 500g
• Long Life

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The all new LandMark20 MEMS GPS/AHRS is an ultra low power combined digital Attitude and Heading Reference System (AHRS) that provides internally temperature compensated RS485 output of delta velocity, delta theta, heading, pitch and roll angle and altitude information and a 16 channel C/A code GPS receiver with 10Hz position update rate.

A complete turnkey software development kit with advanced features including direct PC interface, data recording, bandwidth and output rate selection is also available.A complete turnkey software development kit with advanced features including direct PC interface, data recording, bandwidth, output rate selection and GPS is also available.

Continue reading ‘MEMS LandMark20 GPS/AHRS - Low Noise AHRS with GPS’ »

Researchers at Northwestern University and Princeton University have created a new kind of polymer that, because of its extraordinary thermal and mechanical properties, could be used in everything from airplanes to solar cells.

The polymer, a nanocomposite that incorporates functionalized, exfoliated graphene sheets, even conducts electricity, and researchers hope to use that property to eventually create thermally stable, optically transparent conducting polymers.

Continue reading ‘By Adding Graphene, Researchers Create Superior Polymer’ »

Engineers and applied physicists from Harvard University have demonstrated the first room-temperature electrically-pumped semiconductor source of coherent Terahertz (THz) radiation, also known as T-rays. The breakthrough in laser technology, based upon commercially available nanotechnology, has the potential to become a standard Terahertz source to support applications ranging from security screening to chemical sensing.Spearheaded by research associate Mikhail Belkin and Federico Capasso, Robert L. Wallace Professor of Applied Physics and Vinton Hayes Senior Research Fellow in Electrical Engineering, both of Harvard’s School of Engineering and Applied Sciences (SEAS), the findings will be published in the May 19 issue of Applied Physics Letters. The researchers have also filed for U.S. patents covering the novel device.

Using lasers in the Terahertz spectral range, which covers wavelengths from 30 to 300å, has long presented a major hurdle to engineers. In particular, making electrically pumped room-temperature and thermoelectrically-cooled Terahertz semiconductor lasers has been a major challenge. These devices require cryogenic cooling, greatly limiting their use in everyday applications.

Continue reading ‘Engineers Demonstrate First Room-Temperature Semiconductor Source Of Coherent Terahertz Radiation’ »

Researchers at Northwestern University and Princeton University have created a new kind of polymer that, because of its extraordinary thermal and mechanical properties, could be used in everything from airplanes to solar cells.

The polymer, a nanocomposite that incorporates functionalized, exfoliated graphene sheets, even conducts electricity, and researchers hope to use that property to eventually create thermally stable, optically transparent conducting polymers.

The results of their research were published May 11 in the online version of Nature Nanotechnology.

Continue reading ‘By Adding Graphene, Researchers Create Superior Polymer’ »

Ceramic Bearings – Replacing Steel Bearings with Alumina Bearings in Circulator Pumps by Morgan Technical Ceramics

Background

With an annual production of approximately 10 million products a year and manufacturing operations in 12 countries Grundfos is one of the most recognised and respected pump manufacturers in the world. Dedicated to making its products as reliable and durable as possible, Grundfos works with partners, education institutions and suppliers to research and develop the best pump technology for its products. One of the longest relationships of this kind is with Morgan Advanced Ceramics, which supplies the manufacturer with bearings, shafts and washers for its circulator pumps.

Case Study – Ceramic Bearings for Circulator Pumps

Circulator pumps are used in central and district heating systems and domestic service systems. They need to be able to run quietly and consistently for long operational periods - often up to 5,000 hours a year. As part of its on-going work to improve its products, Grundfos realised that the traditional steel-shaft carbon bearings used in the pump were having a direct impact on the pump’s longevity and noise.

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Background

Boron nitride is a synthetic material, which although discovered in the early 19^th century was not developed as a commercial material until the latter half of the 20^th century. Boron and nitrogen are neighbours of carbon in the periodic table - in combination boron and nitrogen have the same number of outer shell electrons - the atomic radii of boron and nitrogen are similar to that of carbon. It is not surprising therefore that boron nitride and carbon exhibit similarity in their crystal structure.

In the same way that carbon exists as graphite and diamond, boron nitride can be synthesised in hexagonal and cubic forms.

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