Absolute encoders provide angular or linear position feedback through a specially coded disc or scale. For every change in position, a unique code is read by the encoder, providing an absolute position rather than a change in position. They do not require a home cycle when turned on and can be rotated freely when off without losing their position.
Absolute encoders are found in both angular and linear position feedback applications. Rotary versions are commonly used in motor control applications, while models can provide position feedback on a linear actuator.
The most common type of absolute encoder is the optical encoder. The light source is either transmitted through or reflected off a coded disc or scale. The light is then read by a photo detector, which produces a digital code giving an absolute position.
For absolute rotary encoders, the number of bits (e.g., eight) and the maximum speed at which the encoder can rotate (RPM) indicate the resolution. For linear encoders, the measuring range of the application must be taken into account.
- No home cycle
- Absolute position
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Exposed optical absolute linear encoder max. 25 mm | WCS2A, WCS3A PEPPERL & FUCHS
Two read head styles are available: the WCS2A and WCS3A. From a technology standpoint, they are very similar. Their available control interface formats, RS-485 and SSI, are the same. Their resolution is also virtually identical (0.833mm for the WCS2A vs. 0.8mm for the WCS3A). The models do possess some...
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Absolute multiturn rotary encoder 24 bit | RM9000 ifm electronic
Positioned: encoders for mobile applications. Easy connection via M12 connector. Clearly visible diagnostic LED. Easy software parameter setting via CAN interface. 24 bit resolution, 4096 steps and 4096 revolutions....
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Magnetic absolute linear encoder IP66 MITUTOYO
FEATURES • Newly employed detection method (Electromagnetic induction) enables use in adverse environments with water and cutting oil. • Specially designed output cables are developed to maintain the water resistant structure. • No overspeed error since...
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Optical absolute linear encoder LC 100 DR. JOHANNES HEIDENHAIN GmbH
Sealed Linear Encoders Sealed linear encoders from HEIDENHAIN are protected from dust, chips and splash fluids and are ideal for operation on machine tools. An aluminum housing and elastic...
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Magnetic absolute linear encoder Honeywell Sensing and Control
The SMART Position Sensor 225 mm Linear Configuration is Honeywell’s second non-contacting linear position sensor, joining the SMART Position...
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Single turn absolute rotary encoder 6000 rev/min TURCK
With absolute encoders, each incremental angle is assigned a code pattern. The position...
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Magnetic absolute rotary encoder 0.45 - 1.5 Ncm | E50 Elma Electronic
Wear-free design provides 10,000,000 revolutions, contactless magnetic indexing...
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High resolution absolute rotary encoder 12 - 16 bit | AR63 HENGSTLER
Supply voltage DC 10-30 V Analog: DC 17-30 V EMC EN...
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Magnetic absolute single turn rotary encoder 0- 360°, ø 36 mm | PRAS3 ASM
Absolute magnetic angle sensor up to 360 degrees,...
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Optical multiturn absolute hollow-shaft rotary encoder max. 6 000 rpm | G0L2H - SSI Baumer
Voltage supply 10...30 VDC Reverse polarity protection...
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Optical absolute linear encoder 100 m/s, 1 nm | RESOLUTE™ RENISHAW
True absolute linear encoder achieves 1 nm resolution...
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Absolute multiturn rotary encoder 12 bit, Ethernet | AFM60 series SICK
The outstanding feature of the absolute encoder AFS60/AFM60 EtherNet/IP is the Device-Level-Ring functionality (DLR). DLR is a revolutionary ring topology that requires no additional switches. The cabling is done directly from encoder to encoder. This reduces effort and costs compared to the cabling of a star-topology . In this way, AFS60/AFM60 EtherNet/IP...
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Absolute rotary encoder 24 bit | M3000 BECKHOFF
M3000, M3200 | Absolute encoder, Incremental encoder The M3000 absolute encoder allows displacements to be acquired with immunity to power failure and with a measurement range corresponding to a word length with a 24 bit measurement range. The compact...
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Absolute rotary encoder ROCKWELL AUTOMATION
Encoders can electronically monitor the position of a rotating shaft. Our Absolute Encoders are electro-mechanical devices that...
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Redundant absolute rotary encoder 12 - 16 bit, max. 2 300 mm | BMMS K23 series Baumer Electric AG
Technical data - electrical ratings Voltage supply 8...30 VDC Reverse polarity protection Yes Short-circuit proof Yes Consumption w/o load (typ.) 35 mA (24 VDC) Initializing time ≤500...
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Optical absolute single turn rotary encoder max. 12 000 rpm | H25X BEI Industrial Encoder Division
The H25X series single turn encoder is designed for those applications that require 14 or 15 bits of resolution in a compact, easy-to-integrate package. Gray Code and Natural Binary outputs are available for installations using a parallel input with...
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Absolute multiturn rotary encoder with fieldbus interface max. 8 192 ppr | 842D Allen Bradley
Bulletin 842D DeviceNet™ Multi-Turn Magnetic Encoder is a 26-bit absolute multi-turn shaft encoder that...
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Absolute rotary encoder OMRON Electronics
Water Resistant Encoder for Tough Environments IP65 drip-proof/oil-proof...
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Heavy duty absolute rotary encoder ø 60 mm, IP65 | E6F-A OMRON
Rugged Encoder for High-precision Detection of Automatic Machine Timing Absolute model....
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Hall effect absolute rotary encoder ø 28 mm, 12 - 16 bit, SSI | EHE228 Semip
SEMIP Introduces Its' hall effect families: contactless potentiometers and absolute encoders, developed by our advanced R&D dept. Adhering to Iso's regulations, our exceptionnal and competitive solutions are the re-sponses to the last commercial, technological and...
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Miniature magnetic absolute rotary encoder ø 8 mm, 12 bit | A08 series GURLEY Precision Instruments
The A08 magnetic absolute rotary encoder is designed for light industrial applications that require up to 12-bits of resolution in a very small package. Major features...
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Heavy duty magnetic absolute rotary encoder FRABA POSITAL
The compact magnetic heavy duty encoders are available in a stainless steel and a cost-efficient steel version with different interfaces. Special constructive features ensure up to IP69K protection throughout the long lifetime...
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Optical absolute linear encoder max. 55 mm, RS485, RS232 | RF25X Series RIFTEK
Absolute Linear Encoders, RF25X Series Application domain Absolute encoders are designed for measuring and checking of displacements, dimensions,...
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Optical absolute linear encoder Leader Precision Instrument Co. Ltd
Usage: The linear encoder is used to accurately detect and display the displacement of machine tools or measuring equipment together with the digital readout, which is installed on the milling machine, lathe machine, drilling machine and so on Features: High accuracy optical glass Scale reference points at a 50mm pitch to determine datum point for machining...
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Absolute rotary encoder A2 US Digital
The A2 absolute encoder is a non-contacting optical rotary position sensor which reports the shaft angle within a 360 range. As opposed to incremental encoders, the A2 reports the absolute...
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Absolute rotary encoder 0 - 5 V, 10 bit Rotalink
Our absolute output shaft encoder provides accurate positional information unaffected by power loss and self correcting in the face of electrical interference. They operate via contactless...
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Heavy duty absolute rotary encoder IP6k9k, IP68, IP67, e1 MOBIL ELEKTRONIK GMBH
Standard Contactless Series 533 400 Angle transducer in rugged design for harsh applications. Technical properties: - contactless...
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Explosion proof absolute rotary encoder ATEX ELCIS ENCODER
The prestigious Belgian institute ISSeP of Liege provided Elcis with the latest certifications ATEX II 2 G D Ex d II C T6 - Ex tD A21 IP 6x T85°C and Ex d II...
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Magnetic absolute multiturn rotary encoder JVL
Typically, absolute-encoders are used when there is a need to continue operation immediately after power is re-applied to a machine or system, without first having to perform a zero-search reset. Thereby the cost for sensor and mounting time is saved Another major reason for using absolute encoders is to...
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Optical absolute multiturn rotary encoder 14 - 16 bit, 120 rpm, RS422 | FPCOM23-01 Codechamp
MULTITURN ABSOLUTE ENCODERS : Size 23 / 14 BIT Resolution per revolution : 1'19'' (16384 counts) Nb of revolutions : 4096 Total resolution : 26 BIT Accuracy : ± 40'' Output : Serial output Output Interface : RS422 Power supply / consumption : OV ; + 24V ± 6V (150 mA max) Operating temperature : - Standard : from...
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Potentiometer absolute rotary encoder AW360 ZE NOVOTECHNIK
This „heavy-duty“ version of the 360° potentiometer AW 360 ZE is particularly suited for applications where rough conditions prevail. Its robust design is especially suited to for industrial plants and heavy engineering...
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Capacitive absolute rotary encoder KINAX WT720 Camille Bauer AG
Converts the angular position of a shaft into a load independent direct current signal, proportional to the angular shaft position. The unit is contact free. Main features •...
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Optical absolute linear encoder 50 - 500 mm | GL5, GL1 Elbo - Eredi Bassi Araldo sas
The GL serie has been designed to make possible installations on limited spaces on both Machine Tools (e.g. diametral axis on Lathes)...
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Compact absolute rotary encoder 58 mm | CxV series TR-Electronic GmbH
Absolute position transducers sense rotary and angular movements and convert them into electrical signals. Unlike incremental measuring...
