MDTmag.com 26 / September/October 2017
Pressure Sensor Suits Many Medical Apps
The Fujikura AP3 and AG3 series pressure sensor from Pewatron, originally designed for
measuring blood pressure, can also be used for dialysis tools, treating DVT, and other
medical tools that integrate low-noise amplification. The sensor is a two-chip system designed with a low-noise analog output and a 16-bit resolution. All 16 bits can be evaluated without fuzzy bits. It also features a MEMS sensor chip, a signal conditioning chip, and
a single point pressure threshold detection. The signal conditioning IC is not designed
with A/D and D/A convertor steps in the gain amplifier. Standard measurement range
is zero to 250 mbar and zero to 12 bar. The pressure range is configurable as positive,
negative, or bidirectional. The supply voltage is configurable at 3.0, 3. 3, or 5.0 VDC.
Controx milling cutters are designed for the grooving of rotary vane and turbo pump rotors
and other rotors requiring precision depth and width control.
Slot widths of up to 5/8 in. and depths to 3 in. are possible with or without contour in the
slot base. Long service life is assured due to process-oriented choice of cutting material
(special fine and ultrafine solid carbide grades, high speed steel grades) and a selection of
surface treatments (coating, edge preparation). A special coating yields unmatched service
life for aluminum. Adjusting the clamping surfaces and drive geometries to the tool holder
provides safe and stable tool clamping. Individual resharpenable tooth designs allow
increased speed which reduces the machining time and improve surface quality. A special
side clearance design on the milling cutters for Turbo Pump Rotors allows use on 5-axis
Dip-Molded Plastisol Y Connectors
These connectors from Qosina are produced through a dip molding process rather than
traditional injection molding. They are Class VI approved and BPA- and latex-free. Qosina
offers both standard and universal plastisol Y connectors. The universal style can be cut
to accommodate 3/32 inch, 1/8 inch, 3/16 inch and ¼ inch OD tubes. The connectors
come in 15 different Y connector configurations, and are offered in sample assortment kits
containing a selection of plastisol connectors. Custom design services are also available.
The Sarcon PG25A thermal gap filler pad from Fujiploy can be integrated into applications
designed with fragile components and high compression rates. It is made with a compliant 2. 5 W/m°K material that fits components of various shapes and sizes and exhibits a
thermal resistance as low as 0.42°Cin2/W at 14 PSI. It works best in applications that need
a material compression between 30 percent and 50 percent. Availability includes four
thicknesses from 1 mm to 5 mm and a maximum sheet dimension of 300 mm by 200
mm. The pad can be used over temperatures ranging from -40 to +150 degrees Celsius.
AC/DC External Supply Carries Medical Approvals
The PEAMD36 Series from Power Partners Inc. is offered in either a Class I or Class II
version, featuring a BF rating on the Class II version, and meets DoE Efficiency Level VI
requirements. The PEAMD36 Series is approved to the latest UL/EN 60601-1 medical
safety standard, as well as 60601-1-2 4th Edition EMC requirements. Class I and Class II
AC inlet options are C14, C6, C8 and C18 types. Single output voltages range from 5VDC
to 48VDC. The supply is rated for 100K hours per MIL-HDBK-217F.
The PEAMD36 measures 3.94 x 1.77 x 1.22 in. and weighs 0.44 lb.