Electronics
Wire-to-Wire Feedthroughs
Posted in Electronics & Computers, Electronics, Products, MDB on Thursday, 01 September 2011
Douglas Electrical (Randolph, NJ) offers wire-to-wire feedthroughs for providing power and/or signal transmission into and out of vacuum or pressure environments. They are suitable for applications such as thermocouple sensors where signal loss can become an issue. Design engineers can specify the type and mix of conductors and feedthrough, as well as customize terminal requirements as needed. They can withstand pressure up to 15,000 PSI and temperatures ranging from cryogenic to over 350 °F.

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Rugged Spring Pins
Posted in Electronics & Computers, Electronics, Products, MDB on Thursday, 01 September 2011
Mill-Max (Oyster Bay, NY) offers a series of rugged spring pins capable of carrying 9 amps continuous current at 10 °C temperature rise. The Mill-Max 0850, 0851, 0852, and 0853 spring pins are suitable for rugged applications and for use in circuits operating above signal level. The 085X series is characterized by a greater mass and surface area, which provides a lower resistance electrical path than miniature spring pins. The spring pins feature a gold plated stainless steel spring, .050" diameter solid plunger, and thick wall construction to withstand demanding applications. They are designed for through-hole mounting, and each pin has a large diameter post and flange providing for a perpendicular and secure P.C.B. attachment. The 085X series provides .045" mid-stroke and .090" maximum stroke, allowing for use in applications where stack up tolerances are great. Applications include board stacking, docking stations, cable assemblies, quick connects, and anywhere there is a blind mate solution. The series is rated at 1,000,000 cycles minimum.

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DC/DC Converters
Posted in Electronics & Computers, Electronics, Products, MDB on Thursday, 01 September 2011
Mornsun America (Hudson, MA) has introduced the WRA/WRB-LT-3W Series of surface mount DC/DC converters. The products offer 3W of power in a high density 0.93" × 0.73" × 0.33" surface mount package and are suitable for a variety of applications including instrumentation. The series accepts 2:1 input voltage ranges from 4.5VDC from 72VDC and provide either single or dual, fully regulated outputs of 3.3 VDC, 5 VDC, 12VDC, or 15VDC. The temperature ranges from -40 °C to 85 °C.

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Filter/Amplifier Card
Posted in Electronics & Computers, Electronics, Products, MDB on Thursday, 01 September 2011
Krohn-Hite (Brockton, MA) offers the Model FLX-ICP4, a four-channel filter/amplifier with a flexible signal conditioning card suitable for use in ICP® sensor and other sensor/transducer applications requiring a constant excitation current. A user-selectable 4mA or 8mA constant current is provided for excitation power to the input of the ICP® sensor, while the return AC signal is conditioned through a differential fixed filter/amplifier. The FLX-IPC4 can be populated with up to 4 independent channels, including a fixed low-pass Butterworth or Bessel filtering from 1hA to 200kHz and a fixed low noise gain up to 10,000. The filter provides a typical common-mode-rejection of >80dB and a signal-to-noise ratio of >100dB. Typical noise is
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Non-Magnetic D-Sub I/O Connectors
Posted in Electronics & Computers, Electronics, Products, MDB on Thursday, 01 September 2011
CONEC (Garner, NC) has enhanced its I/O connectors for use in areas with high magnetic fields by replacing the usual steel shells and hardware with tin-plated brass and making the brackets of diecast zinc. The non-magnetic D-Sub I/O connector is suitable for medical imaging systems and other medical applications. The nonmagnetic D-subs are available in standard densities of 9 through 50 positions, in solder cup and PC tail versions. High-density D-subs in the product line include sizes from 15 to 78 positions, also in solder cup and pc tail versions. Combination D-subs are available in 21 standard arrangements. EMI filter connectors are also available with this nonmagnetic capability. Current ratings are from 5 to 40 amps, depending on the base connector chosen.

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Wrist-Mounted Device for the Visually Impaired
Posted in News, Electronics & Computers, Electronics, Manufacturing & Prototyping, MDB on Tuesday, 23 August 2011
The Tacit, a haptic sonar glove that helps a visually impaired person navigate complex environments, has been released as a public prototype. The invention uses ultrasonic sensors to sense objects from about 1 inch to 10 feet away, and translates that information into pressure on the user's wrist.
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Flexing the Power of Skin-Mounted Electronics
Posted in News, Electronics & Computers, Electronics, Sensors, Medical, Patient Monitoring, MDB on Friday, 12 August 2011
Engineers are taking important steps toward a future in which skin-mounted electronics could monitor individuals in a natural environment and even offer the potential for human-computer interfacing — all with the flexibility and comfort of a temporary tattoo.

Researchers at the University of Illinois and Northwestern University recently developed a type of patch with a circuit that bends, wrinkles, and stretches with the mechanical properties of skin. The patches are mounted on a thin sheet of water-soluble plastic, then laminated to the skin with water, like a temporary tattoo.

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