Product category:
Measurement systems
News Release from: Renishaw | Subject: Feedback encoder systems
Edited by the Manufacturingtalk Editorial
Team on 15 November 2006
Feedback encoder systems for industrial
automation
Renishaw offers a wide range of magnetic and compact optical position feedback encoder systems to meet the diverse requirements of industrial automation.
Renishaw offers a wide range of magnetic and compact optical position feedback encoder systems to meet the diverse requirements of industrial automation The latest additions to the range include the world's first 13-bit magnetic sensor, which is sealed for operation in harsh environments, including wash-down areas
This article was originally published on Manufacturingtalk on 1 Feb 2006 at 8.00am (UK)
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high precision range of position feedback encoder systems include fiber optic laser interferometer types that deliver nanometer positioning accuracy from a remote laser source - even to two axes.
Special web site launched for sensor exhibition
Renishaw has created a Web site containing new product announcements for the UK's MTEC exhibition - it gives full details of of compact optical and magnetic position feedback encoder systems.
The range of reliable, low-cost, high-speed, miniature magnetic rotary encoders already provides class-leading performance along with ruggedness and durability.
Now the addition of a 13-bit magnetic sensor, provides 8,192-count positioning resolution and operating speeds to over 30,000 rev/min, with availability in chip, chip-on-board, and ready-to-mount packaged versions.
The enclosed versions, with sealing to IP68, are particularly suited for use in wash-down areas, whilst optional stainless steel housings meet food industry requirements.
Further reading
Latest position feedback encoders to be shown
As well as position feedback encoder systems, a Koran exhibition will show motion analysis software demonstrated in conjunction with a laser interferometer measurement system for machine calibration.
Encoders and motion analysis tools to be shown
MACH exhibitor offers systems to improve machine tool and CMM productivity as well as a range of compact optical, laser interferometer and magnetic position feedback encoder systems.
Position feedback encoders are wash down resistant
A wide range of magnetic and compact optical position feedback encoder systems now include wash-down resistant encoders to incorporate in packaging or processing machinery.
The solid state, non-contact magnetic design, eliminates seals, bearings and moving parts for reliable rotary positioning, particularly for motor control and automation systems.
As well as motor feedback and positioning control, the magnetic encoder products are used for torque sensing, flow control, scanning, and instrumentation, and can be selected for such price-competitive applications as industrial power tools, vending machines, CCTV, and valve positioners.
More recently they have found applications in the processing and packaging industry, including conveyor handling, robotic pick and place, wrapping systems, food processing machinery, checkweighers and labelling machinery.
Especially suited to difficult design and environmental requirements, the magnetic sensors provide -40 C to 125 C operational temperature range and superior shock and vibration resistance.
Friction-less low-inertia operation enables consistent, wear-free 0.3 positioning accuracy at high acceleration/deceleration and rpm.
The versatile sensors come in models providing digital absolute, incremental or analogue outputs, and even simultaneous SSI and incremental output.
The simultaneous capability enables the 13-bit sensors, like all Renishaw's magnetic product line, to be used for both motor commutation, position and velocity control at the same time.
Renishaw's rotary magnetic family covers 8, 9, 10, 11, 12 and now 13-bit sensors, all available in chip, chip-on-board, and packaged/encapsulated versions are available.
This gives designers everything from 256 to 8,192 counts per revolution to fit a wide range of applications.
Chip and chip-on-board models allow the sensors to be engineered and integrated into machinery and equipment designs.
The ability to operate with a gap between the magnetic actuator and encoder chip meets design needs for isolation of moving elements.
The component and modular units allow designers to optimise fit and space efficiency.
Packaged versions enclose the chip and electronics in robust metal cases for "fit and forget" reliability that should outlast the productive lifetime of the host machine.
Enclosed units are widely used in rugged applications and environments, such as agricultural, automotive, elevators, converting, printing, metalworking, industrial automation, avionics, and military defence.
Fully encapsulated versions are waterproof for wash-down processes and even immersible for use on pumps, marine equipment and sub-sea systems.
Two mounting versions are available, with shaft or with a hole for mounting on a shaft, and a mounting flange fits typical motor enclosures.
With small sizes, starting at just 22 mm diameter bodies, ease of installation is ensured. Request a free brochure from Renishaw ...
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