Motion Control

Integrated Motion Solution Keeps Laser Marking Machine Costs Down

As the demands of traceability and compliance are put on manufacturers, using a laser provides permanent marking of a variety of information, including 2D bar codes, serial numbers, company information, and logos.

Posted in: Applications, Motion Control, Application Briefs

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Enabling Microliquid Chromatography by Microbead Packing of Microchannels

The microbead packing is the critical element required in the success of onchip microfabrication of critical microfluidic components for in-situ analysis and detection of chiral amino acids. In order for microliquid chromatography to occur, there must be a stationary phase medium within the microchannel that interacts with the analytes present within flowing fluid. The stationary phase media are the microbeads packed by the process discussed in this work. The purpose of the microliquid chromatography is to provide a lightweight, low-volume, and lowpower element to separate amino acids and their chiral partners efficiently to understand better the origin of life.

Posted in: Bio-Medical, Imaging & Diagnostics, Monitoring & Testing, Materials / Adhesives / Coatings, Optics/Photonics, Fluid Handling, Medical, Diagnostics, Measuring Instruments, Briefs, MDB

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Heart Pump with Behind-the-Ear Power Connector

One-third of patients with heart pumps develop infection at abdominal connection. Cardiac surgeons and cardiologists at the University of Maryland Heart Center are part of a multi-center clinical trial evaluating the efficacy of powering heart pumps through a skull-based connector behind the ear. The pumps, called left ventricular assist devices (LVADs), support the heart’s main pumping chamber, the left ventricle. LVADs are implanted in the chest and powered with external batteries. Typically, these devices, which are used for patients with severe heart failure, are powered through an electrical cord connected at the abdomen, where potentially deadly infections can develop.

Posted in: Bio-Medical, Drug Delivery & Dispensing, Electronics, Implants & Prosthetics, Electronic Components, Power Supplies, Power Management, Power Transmission, Fluid Handling, Medical, Patient Monitoring, Briefs, MDB

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Gearboxes

The i-series planetary gearboxes from Groschopp (Sioux Center, IA) are available with AC, PMDC, and brushless motors, and are made of cast aluminum. They are offered with up to three stages of steel cut or optional plastic gears, suitable for both leftand right-hand rotation running, in continuous and intermittent duty operation. The plastic gears can withstand operating temperatures from -15 to 65 °C; the steel gearing can withstand -30 to 140 °C temperatures. Rated at a standard IP54, the gearboxes feature sealed, doubleball output bearings and gaskets between each module to resist grease and dust.

Posted in: Products, Motion Control

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Machine Design Software

CD-adapco (Melville, NY) offers two connected simulation programs, SPEED and STAR-CCM+, for machine design. The SPEED tool is used to design motors, generators, and alternators; STAR-CCM+ is a heat transfer and thermal fluid flow program. Design data is seamlessly transferred between the two programs. The SPEED model is created and solved with static/dynamic analytical analysis. SPEED FE is used to fine-tune the analytical model and calculate the iron losses. The 3D machine geometry is set up in STAR-CCM+, including the end windings creation from SPEED via an xGDF file. Flow heat loss results are transferred from FE analysis to STAR-CCM+ via the SBD-file, and heat losses are mapped automatically. The cooling system, bearing shields, and additional flanges are added via importing from a 3D CAD system. Physics are assigned, and the final solution and post-processing are done in STAR-CCM+.

Posted in: Products, Motion Control

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Electric Actuators

Warner Linear (Belvidere, IL) has announced the ITrack linear actuators for light- and medium-duty applications where parallel motor type actuators won’t fit in limited space requirements. The actuators feature a release clutch that allows the actuator rod to float when power is off. When the clutch is disengaged, much less force is required for manual movement. The clutch also provides overload protection and can be driven through in case of obstruction. The actuators have a load capacity up to 200 pounds, and stroke lengths up to 12". Gaskets are nitrile-impregnated for sealing, and steel components are nitrotec-coated for corrosion resistance. Models feature a ball screw, a steel rod, and are IP66 capable. Operating temperature ranges from -40 °F to 185 °F.

Posted in: Products, Motion Control

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Torque Control Hinges

Reell Precision Manufacturing (St. Paul, MN) offers the TI-100 and TI-200 Series torque control hinges that provide pivoting capabilities without the standard appearance of conventional hinges. Depending on model, the torque inserts press-fit into a variety of materials via a keyed cavity, or can be plastic over-molded. They feature patented ReellTorq® clip technology, which eliminates the need for adjustment, and provides precise position control and torque.

Posted in: Products, Motion Control

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