Hall sensors for motors
The entire range of 12- to 24-V Bosch dc electric motors with Hall sensors is available to developers of commercial, industrial, and medical applications that require precise control of motor speed or positioning mechanisms. When used with dc electric motors, Hall sensors can be used to detect the direction and speed of rotation, and position of the armature. By counting the generated output-voltage pulses, it becomes possible to determine the number of rotations, and therefore the speed, of the motor. Also, if the rotational motion is converted into a linear motion, it then becomes possible to monitor the range of travel exactly. If two Hall generators are installed offset to each other at a specific angle in a motor, then the direction of rotation can also be determined.
Annual Salary Survey
After almost a decade of uncertainty, the confidence of plant floor managers is soaring. Even with a number of challenges and while implementing new technologies, there is a renewed sense of optimism among plant managers about their business and their future.
The respondents to the 2014 Plant Engineering Salary Survey come from throughout the U.S. and serve a variety of industries, but they are uniform in their optimism about manufacturing. This year’s survey found 79% consider manufacturing a secure career. That’s up from 75% in 2013 and significantly higher than the 63% figure when Plant Engineering first started asking that question a decade ago.