INSIDER Special Edition - Encoders and Inclinometers for Absolute Positioning 09/05/12

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In this edition, sponsored by FRABA Inc.:

Choosing and Using Rotary Encoders for Effective Motion Control

Rotary encoders (sensors that measure the angular displacement of shafts or other rotating objects) are important for many industrial automation and motion control applications. Understanding the types of encoders that are available, along with their relative strengths, can be useful when trying to decide on the right device for the job.

Absolute encoders provide a reading of the absolute rotational position of the equipment to which they are attached. This makes them a good choice for a wide range of motion control applications. Multi-turn models keep track of the number of rotations. There are two main technologies used for these devices: Optical encoders offer unmatched accuracy and dynamic response and are well suited to precision industrial automation tasks. Magnetic encoders are robust, compact and generally less expensive. This makes them a good choice for a wide range of challenging motion control systems.

Read our white paper on absolute encoder technology for more information on how these devices work and which type of instrument is best for your application.

Click here for the full story.

Sponsor Message

Rotary Encoders with the Absolute Advantage

POSITAL absolute rotary encoders provide precise and unambiguous measurements of the angular position of rotating components. Up to 65,536 steps/turn, ranges to 16,384 revolutions.

For more information,
click here.

Sponsor Message us at IMTS

POSITAL's full product range will be on display at IMTS, Booth E-4185.

For more information,
click here.

Sensors for Mobile Machinery


As construction equipment and mobile machinery — cranes, hoists, excavators etc. — becomes more complex, increasingly sophisticated control systems are needed to keep track of the position of large mechanical components such as masts, booms and outrigger arms. For the most advanced systems, the number of movements that need to be monitored and controlled rivals those of factory automation systems. Motion and position sensors that have proven effective in industrial environments can be used in mobile machinery. However, due to the much more demanding environmental and operating conditions, special ruggedized versions of these sensors are often required. Extreme conditions include:

  • Temperatures from -40 to + 165°F
  • Water, dust, mud and high-pressure water jets from cleaning equipment
  • Shock and vibration loads

For more information on heavy-duty inclinometers, rotary encoders and draw-wire linear motion sensors that can stand up to the rigors of military, construction, off-road or offshore conditions, click here.

For a video illustrating the use of sensors on construction machinery,
click here.

Sponsor Message Rotary Encoders from POSITAL

For critical systems — elevators, cranes, lifts etc. — component failure can have deadly consequences. Safety-rated POSITAL OPTICODE absolute rotary encoders have been certified for EN 62061 Safety Integrity Level SIL-3. Featuring explosion-proof housings and redundant measurement systems, these devices support CANopen Safety Communications Profile DS304 and are suitable for safety-related applications.

For more information,
click here.

Position Sensors for Energy Production

Position and motion sensors play important roles in many stages of energy production. Application areas include drilling platforms for oil and gas exploration, pumping stations for pipelines, mining machinery and flow control equipment for hydroelectric generating stations. Rotary encoders and inclinometers are also found in machinery for renewable power generation, including wind turbines and solar arrays.

For more information on new developments in sensors for wind turbines,
click here.

For information on the use of sensors for orienting solar panels,
click here.

Sponsor Message and Versatile Inclinometers

POSITAL ACCELENS inclinometers are designed to
accurately measure equipment orientation (tilt) in factories or in rugged off-road equipment and military vehicles. Available in 2-axis (+/- 80 degree) or single axis (0-360 degree) versions. Analog (voltage or current), Serial (SSI), DeviceNet, CANopen / J1939 interfaces available. Fully sealed IP69K-rated housings.

For more information,
click here.

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