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
At the Design News webinar on June 27, learn all about aluminum extrusion: designing the right shape so it costs the least, is simplest to manufacture, and best fits the application's structural requirements.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This radio show will show what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.