These screens for medical applications, hydraulic-valve screens, fuel filters, laser-light filters, extruding screens, and particle separation and sizing, are are made with photoetching. This approach means that the openings don't shift or change as the screens work. They also lack the burrs that are associated with stamped screens. They can be made with straight or tapered holes, and hole sizes are as small as 0.003 inch. They are usually stainless steel, but can be other materials. Many sizes and custom shapes are available, but the standard screens have 60 or 90 degree patterns with a maximum guaranteed perforated area of 18 3 21 inches.
The National Highway Traffic Safety Administration’s recent backup camera mandate could open the door to more vehicle innovations, including better graphical displays, 360-degree camera views, and the increased use of Ethernet.
With support from National Instruments, a group of dedicated students from Connally High School in Austin, where more than 50% of the students are at risk of not graduating, have created a successful robotics team that is competing in the FIRST World Championships.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.