More than 21,000 control and automation professionals descended on about 215 exhibitors during the National Industrial Automation Show (NIAS), which was part of National Manufacturing Week (NMW), March 16-19, at McCormick Place in Chicago. Here are highlights from some of the show's major press events:
Schaumburg, Ill.— Providing capabilities previously unavailable to the angular encoder market, RCN 723 has a resolution of 0.15 angular sec in combination with system accuracy of 2 angular sec. Operating on the photoelectric principle of scanning 131,072 grating periods (17 bits in gray-code evaluation), this track is subdivided 64-fold to achieve 23 bits, resulting in 8,388,608 absolute...
Beaverton, Ore. —PC46 is a motion controller on a single half-size ISA bus circuit board. PC46 can control up to six axes of step and direction with an option for two channels of quadrature encoder feedback. Step pulse rates of up to 522,000 pulses per second can be produced, and encoder signals of up to 4 MHz are supported.
"Control products just keep getting more advanced, yet simpler to use,"was the consensus among editors at Control Engineering when it was time for them to choose the best control products of 1997. For the 11th consecutive year, the editors chose the 50 best products based on three criteria: technological advancement, impact on the market, and service to the industry.
Newton, Pa. —SonicLaser ultrasonic proximity sensors come in 18 models and feature a narrow, concentrated beam angle 2.5° off-center axis. This narrow beam angle is said to render the sensor insensitive to echo interference from surrounding objects. Measuring ranges vary from 3.28 to 26.25 ft.
Ellington, Conn.— Model 605 DC Angular Displacement Transducer offers accuracy up to 0.038 and eight measurement ranges for sensing angular position up to 3008 of rotation. With a 3 kHz frequency response and infinite resolution, these transducers from Trans-Tek are suited for use as servo feedback sensors or in applications requiring dependable absolute position sensing.
Allerod, Denmark— Using the latest SMD and bonding technology, these miniature hollow shaft encoders are made with an outer diameter of only 24 mm, and are especially resistant to shock and vibration. They count 2,000 pulses per revolution and a maximum frequency of 200 kHz. Counting the leading and trailing edges of both channels provides four times the resolution, which means that the ...
Schaumburg, Ill. —E6C-N is a multiple rotation encoder said to offer a number of time-saving, ease-of-use features for a variety of motion applications, including tripping detection of stepper motors, numeric controlled table and stacker crane positioning, and timing control of conveyor lines and packaging machinery.
Andover, Hants, U.K.— The Unimotor range includes three phase, six or eight pole, permanently excited synchronous motors, exhibiting a sinusoidal back-EMF characteristic. Designed to supply high torque with either low- or high-rotor inertia and minimal cogging torque. Thermal performance is improved by the unique finned motor housing, manufactured in high-strength alloy casting to radiat...
Ann Arbor, Mich. —QuickPlace is a universal level switch mount for simplifying installation of commonly used liquid level sensors. The device consists of a weighted, fluid tight module for housing the level sensor, with integral terminal block and cabling for connecting the sensor to external controls.