In multiturn shaft encoders, the number of rotations is normally detected with a gear unit. However, in everyday industrial life this often proves to be a weak point. Like any mechanical system, it is also subject to wear and the abrasion can soil the code disk.
IVO uses a different method. The mechanical gear unit is replaced with the 'touchless encoder' principle patented in 1992 whereby the rotations are detected electronically using two magnetically triggered sensors offset by 90°. The number of rotations are evaluated and stored in an ASIC, which is buffered with a lithium battery. As a result, the values are retained even in de-energised state. The service life of the lithium battery is over 20 years; its charge state is available at all times at a diagnostic output and can, for example, be output via a fieldbus, making this system more reliable than the mechanical unit, as a failure can now be detected at an early stage.
Thanks to this design principle, the multiturn encoders adapt to virtually all fieldbus systems commonly used today. IVO's Magtivo, Multivo and Activo encoders can easily be combined with different bus covers integrating the corresponding fieldbus electronics. For system and machine manufacturers, this increases flexibility and stocks are reduced, as the desired bus cover can simply be mounted on the basic sensor. Combinations include CAN, CANopen, DeviceNet, Profibus-DP, SSI and Optic fibre bus. IVO is distributed by Timecount.
For more information contact Jos Laurencik, Timecount, 011 882 3105, timecount@icon.co.za
Telco sensors for harsh environments
Sensors & Transducers
Telco sensors are designed to operate where moisture, particulate contamination and surface fouling would disable conventional sensors, with a range including an adjustable five-metre infrared proximity sensor for harsh industrial environments.
Read more...The data-driven path to sustainable manufacturing ifm - South Africa
Editor's Choice Sensors & Transducers
Smart automation is closing the gap between operational efficiency and environmental responsibility, and the data to do it is already inside the plant. With ifm’s sensing and digitalisation technologies, manufacturers can turn machine intelligence into measurable sustainability gains.
Read more...Expanding visibility in mining operations Emerson Automation Solutions
Editor's Choice Sensors & Transducers
Advances in wireless communications, condition monitoring and sensing technologies are helping mining operators extend measurement into previously under-monitored areas, improving equipment reliability, process performance and water stewardship.
Read more...Fiber-optic amplifiers for precise object detection ifm - South Africa
Sensors & Transducers
The OCF fibre-optic amplifier detects even the smallest or most transparent objects in confined spaces, making proven fibre-optic technology easier and more user-friendly than before.
Read more...Distance sensor for confined spaces ifm - South Africa
Sensors & Transducers
The O6D100 from ifm has been designed as a powerful all-rounder for typical applications in object detection, distance measurement and positioning.
Read more...Optimise sludge treatment and reduce operational costs Endress+Hauser South Africa
Sensors & Transducers
Endress+Hauser’s inline measuring devices, the Proline Teqwave MW 300 and the Proline Teqwave MW 500, determine the total solids content of wastewater directly through microwave transmission.
Read more...Inclination sensors for motion control ifm - South Africa
Sensors & Transducers Motion Control & Drives
The JBC dynamic inclination sensor from ifm offers accurate angle measurement in the most demanding conditions, filtering out motion disturbances such as vibrations, shocks and vehicle dynamics to deliver reliable inclination values via IO-Link or programmable switch outputs.
Read more...Fully integrated standalone thunderstorm warning system Senseca
Sensors & Transducers Analytical Instrumentation & Environmental Monitoring
Senseca South Africa has introduced its BTD-1 fully integrated, standalone thunderstorm warning system, which detects lightning by monitoring the background quasi-electrostatic field. The system can generate alerts before the first lightning strike, with a detection raterange of up to 83 km.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version