Absolute encoder is immune to ageing
A
Motor Technology product story
Edited by the Engineeringtalk editorial team
Jan 5, 2007
World's first high resolution, magnetic, absolute encoder to combine the precision and accuracy of optical technology with the robustness of magnetic, all-metal construction.
Motor Technology has launched the world's first high resolution, magnetic, absolute encoder that combines the precision and accuracy of optical technology with the robustness of magnetic, all-metal construction.
Designed and manufactured by Lenord + Bauer, of Germany, the GEL 235 is a genuine innovation based on an entirely new type of contour disk made of ferromagnetic steel.
Etched into the steel disk using optical lithography and chemical etching processes are three incremental tracks with stepped numbers of ridges.
The tracks are scanned magnetically using giant magnetoresistive sensor elements and the absolute position is determined by ingeniously applying a Vernier scale to the readings.
In such a way the new encoder is accurate to 0.1 degree and has an overall resolution of 28bit (16bit single turn and 12bit multiturn).
Its use of a magnetic measuring principle means that the new GEL 235 absolute encoder is immune to ageing effects.
The result is longer and more reliable system operation, which is particularly beneficial on remote or inaccessible applications.
The encoder is not affected by wide fluctuations of temperatures and humidity, and its immunity to condensation makes it suitable for long-term use in areas with greatly varying ambient temperatures.
The ferromagnetic steel contour disk is form fixed to the encoder shaft resulting in a highly robust unit.
Unlike optical systems that use transparent glass or plastic code discs it is practically impervious to dirt or vibration.
The new GEL 235 absolute encoder is available as a single-turn or multiturn variant with SSI interface and additional sine/cosine signal.
The fieldbus profiles Profibus-DP and CANopen are available via a plug-on bus adapter.
The standard flange diameter is 58mm, and the housing length for both single-turn and multiturn variants is just 46mm and only 30mm longer with bus cap.
Clamping or synchro flanges and a semi-hollow shaft with cable or plug outlet are also available.
Not what you're looking for? Search the site.
Google Ads
Contact Motor Technology
Related Stories
- Dytran's 3224A3 measures vibration in tight spaces
- OCR Reader reads 100 characters per scan
- OP sensors precisely detect parts
- Ozone sensor provides drift-free measurement
- LMS 100 laser sensors avoid false signals
Articles by product category
- Consultancy and Services (903)
- Machine Building (4,517)
-
Engineering Design Software (6,179)
- Engineering Design Software (12)
- 2D CAD software (200)
- 3D CAD software (1,157)
- FEA and structural analysis software (369)
- Fluid, thermal, noise, vibration software (334)
- Simulation, modelling, validation software (914)
- Rendering, visualisation, styling software (196)
- Materials design and moulding design software (151)
- Process, instrumentation, automation software (258)
- Electrical design software (164)
- Publishing and documentation software (229)
- Maths, charting, statistics, QA software (317)
- Data, document management software (310)
- CAM, CNC, production management software (568)
- File conversion software, data capture (351)
- PLM and collaboration software (649)
-
Drives, Motors and Controls (3,361)
- Drives, Motors and Controls (1)
- Precision Motors and Gears (411)
- Industrial Drives/Controls (1,276)
- Linear Drives and Motors (114)
- Industrial Motors (497)
- Stepper and Servo Drives, Motors, Controls (1,060)
- Small Mechanical Components, Joining, Tools (1,975)
-
Control and Instrumentation (5,028)
- Plantwide control (1,324)
- Plant- and Machine-Wide Communications (1,174)
- Smaller-Sized PLCs (387)
- CNC and Motion Controllers (184)
- Mid-range and Large PLCs (201)
- Power Supplies, Uninterruptible Power (562)
- HMIs/Operator Interfaces (294)
- Logic Controllers, Timers and Relays (96)
- Cabling, Conduit, Signal Conditioning (806)
-
Monitoring, Measurement and Quality (5,459)
- Monitoring, Measurement and Quality (1)
- Data acquisition Software and Communications (494)
- Data Acquisition Hardware and PC I/O Boards (472)
- Electrical and Electronic Testing, PAT Equipment (630)
- Form/co-ordinate, optical, vision instruments (703)
- Gauges, Indicators and Instruments (440)
- Data loggers (422)
- Materials testing equipment (421)
- Telecomms/network test equipment, software etc (154)
- Testing and Calibration Services and Information (500)
- Testing, analysing and monitoring equipment (1,222)
-
Electrical and Electronic Equipment Design (4,160)
- Batteries, chargers and circuit protection (555)
- Connectors, Terminals, Busbars, Slip Rings (679)
- Enclosures and Equipment Cooling Fans (709)
- Knobs, Handles and Enclosure Hardware (420)
- PCs and Embedded Systems (798)
- Electrical and Electronic Subassemblies (369)
- Electrical and Electronic Components (630)
-
Materials and Processing (2,963)
- Materials and Processing (5)
- Materials and components (2,215)
- Rapid Prototyping (458)
- Materials processing and testing (285)
-
Engineering Industry News, Resources (6,093)
- Engineering Industry News, Resources (4)
- Engineering Business News, Views (388)
- Engineering Exhibitions, Events (562)
- Engineering Conferences (425)
- Engineering Seminars (400)
- Engineering Industry Developments, Awards (633)
- Engineering Guides, Newsletters (349)
- Engineering Recruitment, Employment (219)
- Engineering Training Courses (433)
- Engineering Education, Resources, Standards (838)
- Engineering Industry Reports, Surveys (597)
- Electronic Resources for Engineers (278)
- Health and Safety Legislation (402)
- Health and Safety Strategy, Risk Assessment (113)
- Health and Safety Consultancy, Software (175)
- Health and Safety Events, Training, News (277)
-
Powertrain Design (3,598)
- Powertrain Design (2)
- Bearings (939)
- Chains and belts (326)
- Gears, brakes, couplings and engines (1,441)
- Hydraulic Components (471)
- Lubricants (418)
-
Capital Equipment (3,387)
- Capital Equipment (1)
- Manufacturing Machinery and Plant Equipment (468)
- Production line blowers and fans (62)
- Compressors and Air Treatment (510)
- Electronics Manufacturing, Tools, Instruments (192)
- Electrical hardware (131)
- Machinery and Production Equipment (1,093)
- Robotics, Handling and Storage (930)
-
Sensors (7,080)
- Sensors (8)
- Accelerometers and Vibration Sensors (427)
- Loadcells, Force Sensors, Torque Sensors (699)
- Pressure sensors (621)
- Flowmeters and Flow Sensors (618)
- Level Sensors and Leak Detectors (527)
- Linear Position Sensors (399)
- Rotary Position, Tilt and Angular Sensors (546)
- Proximity Sensors (700)
- Gas, Chemical, Radiation, Magnetic Sensors (284)
- Humidity and Environmental Sensors (152)
- Temperature sensors (612)
- Vision and Colour Sensors (1,384)
- Barcode Sensors (103)
- Valves, Pumps, Process Hardware (3,623)
