Rotary switches are the simplest analogue switches in the world. As the figure illustrates, the movement of the rotor of a rotary switch is nearly perpendicular to the axis of rotation, making the operation of the switch both easy to learn and intuitively obvious, and equipment often comes with little or no instruction manual, since rotary switches have little mechanical complexity and are commonly viewed as self-explanatory.
The two basic types of limit switches are magnetic limit switches and electronic limit switches. Limit switches are used to detect the position of a mechanical, hydraulic or pneumatic component. For example, a limit switch can be used to detect that a door frame is fully closed.
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The previous version of this software was first published for the German StarGazette on October 10, 2007 and is available for download under the GNU General Public License. The 2008 version is downloaded more than 10,000 times a month and is sold in bookstores, online and via email on request. d2c66b5586