Replacing the coils of conventional resolvers, encoders, and LVDTs with a silicon chip allows position measurement miniaturization at maintained or better performance. A micro-coil matrix, integrated interface circuit, package, and external scale in anymetallic material make up the sensor.
To work, one of the micro-coils generates a field, modulated by the metallic scale. This amplitude-modulated field imparts an induced voltage in the detector micro-coils. Interface circuitry processes the AM signal to deduce position, speed, and direction of movement. Output can be analog, digital, or any other format required by the application.
Hans van den Vlekkert, CSEM Microsystems (E), Jaquet-Droz1, CH2007 Neuchatel, Switzerland, Tel: +41 32 720 55 90, Fax: +41 32 720 57 30, e-mail: firstname.lastname@example.org
In this new Design News feature, "How it Works," we’re starting off by examining the inner workings of the electronic cigarette. While e-cigarettes seemed like a gimmick just two or three years ago, they’re catching fire -- so to speak. Sales topped $1 billion last year and are set to hit $10 billion by 2017. Cigarette companies are fighting back by buying up e-cigarette manufacturers.
Advertised as the "Most Powerful Tablet Under $100," the Kindle Fire HD 6 was too tempting for the team at iFixit to pass up. Join us to find out if inexpensive means cheap, irreparable, or just down right economical. It's teardown time!
The increased adoption of wireless technology for mission-critical applications has revved up the global market for dynamic electronic general purpose (GP) test equipment. As the link between cloud networks and devices -- smartphones, tablets, and notebooks -- results in more complex devices under test, the demand for radio frequency test equipment is starting to intensify.
Much of the research on lithium-ion batteries is focused on how to make the batteries charge more quickly and last longer than they currently do, work that would significantly improve the experience of mobile device users, as well EV and hybrid car drivers. Researchers in Singapore have come up with what seems like the best solution so far -- a battery that can recharge itself in mere minutes and has a potential lifespan of 20 years.
Some humanoid walking robots are also good at running, balancing, and coordinated movements in group settings. Several of our sports robots have won regional or worldwide acclaim in the RoboCup soccer World Cup, or FIRST Robotics competitions. Others include the world's first hockey-playing robot and a trash-talking Scrabble player.
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.