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Showing posts from May, 2008

Alloy Resists Heat And Corrosion

Etching is a controlled corrosive process and Inconel has been developed with a high nickel and chromium content, specifically to resist corrosion. The Inconel 617 nickel-chromium-cobalt-molybdenum superalloy offers excellent high-temperature strength and oxidation resistance It also exhibits excellent resistance to a wide range of corrosive environments, which to date have largely prevented the material being photo etched

Etching is a controlled corrosive process and Inconel has been developed with a high nickel and chromium content, specifically to resist corrosion.

Processing thin sheet Inconel by conventional means (punching and slitting) has always given cause for concern as parts tend to come out wavy and the material has a tendency to roll at the edges after processing. Now, thanks to this by the Precision Micro Technical Team, perfectly flat, precision parts can be produced from 0.006in Inconel sheet, economically and with outstanding repeatability.

Stainless Steel Housings Protect Proximity Sensors

The new additions to IFM Electronic's efector T series are probably the only all-stainless steel sensors with an operating temperature as high as 100C. FM Electronic has released inductive proximity sensors with housings made from stainless steel, including the sensing face. They suit the food industry, as they can be used in wet areas and survive aggressive cleaning and high temperatures

The new additions to IFM Electronic's efector T series are probably the only all-stainless steel sensors with an operating temperature as high as 100C. The IFM devices suit true flush-mounting and normal spacing between sensors.

Complemented by the IFM EVT range of M12 stainless steel food-grade connectors, these stainless steel sensors are available in M12, M18 and M30 versions with sensing ranges optimised on stainless steel targets of 3, 5 and 10mm respectively. These food-grade sensors carry IP ratings of both 68 and 69K.

Small Sensor Interface Provides Direct Connections

The digital output from the SX8273 allows manufacturers of industrial pressure/temperature sensing equipment to provide a cost-effective and complete solution to their customers. Solid State Supplies has released an ultra-small sensor interface device that uses low-power ZoomingADC signal amplification circuitry to connect directly to a wide variety of pressure, temperature and magnetic sensors Enabling electronics to be co-located with the sensor, the digital output from the SX8273 sensor, whether it is magnetic, pressure or chemical, allows manufacturers of industrial pressure/temperature sensing equipment to provide a cost-effective and complete solution to their customers.

Capable of operating from a single Li-Ion battery without loss of its 16bit precision, even with a depleted battery, the device features ZoomingADC, a 10bit preamplifier with a programmable gain of between 0.1 and 1000 and a 16bit ADC.

The preamplifier delivers the highest possible gain, giving designers the fre…

Epoxy-Resin System Resists High Temperatures

Cures to a tough, strong solid with excellent long term durability and chemical resistance even when exposed to adverse environmental conditions. Master Bond has developed a high-temperature-resistant epoxy-resin system called EP121CL for service up to 260C The two-component optically clear low-viscosity epoxy-resin system features high thermal stability, superior electrical insulation properties and outstanding dimensional stability for casting, sealing, potting, encapsulation and impregnation applications.

Especially noteworthy are its mechanical properties of 83MPa in tensile strength, 119MPa in compressive strength, and its exceptional electrical insulation properties including, a volume resistivity greater than 30Tohm-cm, a dissipation factor of 0.020 at 1MHz and a relative permittivity of 3.34 at 60Hz. EP121CL is an elevated temperature curing epoxy resin system that passes NASA's low-outgasing test.

It cures to a tough, strong solid with excellent long term durability and c…

Valves And Pumps Aid Medical Miniaturisation

Dan Schimelman explains how innovative miniature solenoid valves and diaphragm pumps enable advances in portable medical devices. Medical therapies are being driven to reduce hospital costs by administering treatments at home or even on the go. This demand has launched new generations of portable devices. Since most of these systems incorporate modules consisting of miniature diaphragm pumps and solenoid valves, these fluidic components need to be tailored according to the system criteria that best achieve the market demand objectives.

Medical Device developers benefit from understanding how these components can be optimised to best meet their specific application requirements. Both employers and payers have exerted pressure to contain health care costs by shifting skyrocketing hospital care to less costly outpatient procedures. There is an increase of procedures that are being performed in an outpatient and ambulatory procedures that once were performed only on an inpatient basis.

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