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Analogue AWS Angle Sensors for harsh industrial environments feature a long service life and simple evaluation options. They are supplied as potentiometers or with calibrated voltage or current outputs.
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Magnetic angle sensor 0 - 360 degrees in a 36 mm dia. housing
- With 10 mm shaft or 6 mm hollow shaft
- 36 mm dia. housing
- Protection class IP67/IP69K
- Magnetic measurement principle
- Output Voltage 0.5 ... 4.5 V, 0.5 ... 10 V; Current 4 ... 20 mA
- Redundant second channel as option
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These transducers are shaft encoders which give absolute measurements on more than one revolution of their shaft.
The encoders have a mechanic gear train which transmits the movement of its master disc to a series of slave discs for shaft revolution counting.
An electronic circuit cancels any mechanic backlash of the gear train, thus yielding a detection's.
They are mechanically strong and properly engineered in their electronics, optical and mechanic parts, being thus able to withstand heavy duty conditions.
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Its outstanding performance figures makes the absolute rotary encoder GEL 235 clearly superior to both conventional encoders and optical systems. Using an innovative technique that reinterprets the familiar vernier principle, the GEL 235 is able to achieve unprecedented precision. This absolute rotary encoder operates wholly reliably even under the most rugged conditions, such as widely fluctuating temperatures and moisture conditions or strong vibration.
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Absolute rotary encoders provide a distinctly coded numerical value for each shaft position. In positioning tasks in particular, the absolute encoders relieve the controller of computation tasks and keep costs down by eliminating the need for additional input components.
Moreover, reference runs when the machine is switched on or after power failures are no longer required as the current position value is available immediately. Parallel absolute encoders transmit the position value to the analyzing electronics through several parallel cables. Serial absolute encoders transmit their output data via standardized interfaces and protocols.
In the past, point-to-point connections were frequently set up for serial data transmission but today fieldbus systems are being used more often.
Interfaces:
The Pepperl+Fuchs rotary encoder portfolio includes the most varied range of current interfaces for absolute encoders to be found on the market:
Parallel Interface
SSI-Interface
AS-Interface
CAN
DeviceNet
Ethernet
PROFIBUS
PROFINET
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To meet the increasing demand for reliable, low cost, high-speed rotary encoding, Renishaw has introduced a range of OnAxis%u2122 magnetic encoders.
These high-speed rotary magnetic encoders are designed for use in harsh environments, such as marine, medical, print, converting, industrial automation, metal working, motor control, and instrumentation.
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Incremental encoders
Solid shaft encoders
Incremental encoders generate a certain number of pulses per revolution. The number of pulses is a measure of the distance moved (angular or linear).
Hollow shaft encoder
Hollow shaft encoders are always used when reduced installation length is required or when precision is important where the drive is subjected to high acceleration.
Absolute encoders
Singleturn
Absolute encoders provide a specific numerical value (code value) for each angular position.
Multiturn
Multiturn encoders not only detect angular positions but also distinguish between several revolutions.
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The encoders of the FIELD BUSSES series are absolute Single-turn or Multi-turn rotary shaft encoders with an interface to connect to field bus systems according to the PROFIBUS, INTERBUS, CANopen, DeviceNet or Ethernet standard.
PROFIBUS: PROcess FIeldBUS (in according to EN50170 vol.2 Standard), was one of the first open bus for constructors. DP VERSION is oriented to fast switch of a reduced number of data in automation sector.
CANopen: Controller Area Network; transmission protocol to message oriented. Used in automotive sector.
DeviceNet: field bus similar to CANopen, but much more open and with more restrictive specifications.
InterBus: first open bus realized in the world ( in according to EN50254 and IEC 61158 Standard). It is able to realize real-time functions.
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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 C T5 - Ex tD A21 IP 6x T100°C, according to CENELEC rules and CESI provided the Product Quality Assurance Notification.
This absolute encoder series is suitable for use on working environments with explosive atmosphere (except for mines with grisù) due to gas (G) and/or dust (D).
The available models are extremely sturdy; they are made in turned from rod metal with precision bearings and stainless steel shaft.
On request these encoders can be completely stainless steel.
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Recording of the measuring value is absolute via a potentiometer. The measuring range is adapted over an interior transmission.
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ELCIS range of incremental encoders is composed of more than 130 transducers with Ø 19 ÷ Ø 250 mm, with resolutions from 1 to 900000 pulses/revolution according to the model chosen (the Customer can multiply the resolution by two or by four).
There are several available output electronics and power supplies can be choosen from 5VDC to 30VDC.
Standard operating temperature is 0°C ÷ +70°C or -40°C ÷ +100°C upon request. Max frequency is available from 100kHz to 1MHz according to the model.
Elcis philosophy towards his customers is not limited to supply a reliable standard encoder, but also to design, at no extra cost, customized units based on their specific requirements.
Thanks to the extremely wide model range, proved quality and sturdiness, Elcis encoders are thus world-wide used.
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RIK Compact Series
Simple mounting with customer-friendly mounting conditions
Dynamic offset and amplitude control leads to high interpolation accuracy and further reduction of the contamination susceptibility.
integrated signal interpolation up to 100x
Signal processing electronics in the connector
also available as ultra high vacuum version
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Incremental rotary encoders supply a certain number of pulses for each shaft revolution. Speed is measured by counting the pulses for a period of time. To calculate angle or the distance covered, pulses are counted starting from a reference point.
Dual channel quadrature output encoders feature two signal outputs that are 900 out of phase with each other. This permits the controller to determine direction of rotation and perform bi-directional positioning tasks.
In addition, three-channel incremental encoders have a third signal channel (known as “zero”, or reference, signal) that provides a single pulse for each revolution.
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Magnetic rotary encoders
To meet the increasing demand for reliable, low cost, high-speed rotary encoding, Renishaw has introduced a range of OnAxis™ magnetic encoders.
These high-speed rotary magnetic encoders are designed for use in harsh environments, such as marine, medical, print, converting, industrial automation, metal working, motor control, and instrumentation.
The magnetic encoder range is designed and manufactured by RLS d.o.o. in Slovenia, Renishaw's partner in encoder technology.
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Incremental encoder
Suitable for all applications where the basic functions of incremental position sensing is required.
The resolution of the hardware incremental encoder is set at TR, using a code disk with fixed number of pulses. These encoder are available with different sizes and of course with different mechanical connections such as solid shaft, hollow shaft, blind shaft or integrated coupling.
Housing options
For applications in explosion-risk areas, in aggressive media or in environments with heavy mechanical impacts on the encoder
Special housings such as EX-housing, stainless steel housing etc.
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Incremental encoders
Solid shaft encoders
Incremental encoders generate a certain number of pulses per revolution. The number of pulses is a measure of the distance moved (angular or linear).
Hollow shaft encoder
Hollow shaft encoders are always used when reduced installation length is required or when precision is important where the drive is subjected to high acceleration.
Absolute encoders
Singleturn
Absolute encoders provide a specific numerical value (code value) for each angular position.
Multiturn
Multiturn encoders not only detect angular positions but also distinguish between several revolutions.
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The encoders series EM/EMA operate according to the magnetic principle.
- They offer an excellent esistance to vibrations and shocks, and high protection against environmental agents
- Excellent price/performance ratio
- Available both in the incremental (series EM/REM) and in the single turn absolute type (named EMA/REMA)
- Many different mechanical versions
- Ppr No. for the incremental type: 8 to 2048
- Absolute encoder resolution: 10 to 13 bits binary code
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To meet the increasing demand for reliable, low cost, high-speed rotary encoding, Renishaw has introduced a range of OnAxis%u2122 magnetic encoders.
These high-speed rotary magnetic encoders are designed for use in harsh environments, such as marine, medical, print, converting, industrial automation, metal working, motor control, and instrumentation.
The magnetic encoder range is designed and manufactured by RLS d.o.o. in Slovenia, Renishaw's partner in encoder technology.
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The incremental and absolute encoders of SIKO operate according to the magnetic sensing principle. Rotary motions are transfered to a special sensor electronic by a magnetic ring, which is attached on a hollow shaft or a solid shaft. The translation electronics convert the magnetised pol pitch in up to 2560 pulses / rotation. The counting pulses are converted into signals, which can be processed by controls and/or regulations.
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Incremental Encoder Type E33
E33 is a high quality, cost effective incremental encoder available with or without push button switch. This new, low profile encoder boasts a unique combination of ruggedness with available options, while providing an excellent indexing feel. The E33's versatile design enables Elma's engineers to react quickly to requests for customer-specific solutions, even in small quantities.
- 16 or 32 detents standard
- With or without push button
- Rotational life: 1,000,000 revolutions
- Excellent indexing feel with 0.5, 1.5, 2.0 or 2.5 Ncm
- Switching torque is consistent over life
- Robust metal housing with metal shaft
- 11.5 x 12.3 x 4.9 mm body size
- Optional IP67
- Operating temperature range: -40 to +85°C
- Various options and customization
- Including SMT reflow and dual concentric
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Absolute encoders MEM always provide the actual position data at the system power on, despite possible shaft rotations; therefore there is no need to reset to the zero point after a power down.
The encoders serieS MEM operating principle is thoroughly electronic - no gear involved - and allows to achieve high acceleration and long lasting.
The data reset function is available for any position.
- High resolution: 5÷13 bits/rev. x 15 bits rev.
- SSI serial output
- Data memory >13 years
- Position reset function
- Binary or Gray code
- Strong and reliable
- Different mechanical versions available:
MEM520 Ø 58 mm round flangeservo coupling (SIZE23)
MEM540 Ø 58 mm round flange Ø 36 mm centering mask
MEM620 63.5x63.5 mm square flange (SIZE25)
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Rotary encoders:
Precise measuring technology with defined values SIKO has united the rotary encoder range under the name of RotoLine. There are the following three product categories, depending on the measuring principle employed in their typical applications:
Magnetic rotary encoders
Optical rotary encoders
Geared potentiometers
The comprehensive SIKO product knowhow permits a wide selection of types
ranging from inexpensive rotary encoders in miniature format with simpler mechanical designs to sophisticated, high resolution products – in housings made of plastic or tough die-cast aluminum. SIKO rotary encoders are essential for tracking lengths, angles and speed in machines and systems. With a host of different designs and customized application specifications, rotary encoders serve as the basis for robust measuring processes for a wide range of different mechanical engineering applications.
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Shaft Encoders, Cube Style
5-28V DC input power
80 mA current draw
NPN transistor output, 250 mA sinking capacity
Square wave output (50-50 duty cycle)
Single channel and quadrature models
Up to 600 pulses per revolution
3/8" (9.5 mm) double ended shaft
ABEC 3 double sealed ball bearings
Tapped holes for face or base mounting
Military style connector
Shaft Encoders, Heavy Duty
5-28V DC input power
80 mA current draw
NPN transistor output, 250 mA sinking capacity
Square wave output
Single channel and quadrature models
3/8" (9.5 mm) single ended shaft
ABEC 3 double sealed ball bearings
Tapped holes for face or base mounting
Military style connector
Shaft Encoders, Right Angle, Size 20
5-28V DC input power
100 mA current draw
NPN transistor output, 100 mA sinking capacity
Quadrature output, 2 square waves
Up to 1800 pulses per revolution
Flange mounting
3/8" (9.5 mm) shaft diameter
Double shielded ball bearings
Military style connector
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Elap encoders portfolio offers a wide choice of solutions:
- incremental or absolute encoders (single or multi-turn)
- small-sized encoders (Ø 30, 38, 40 mm)
- encoders SIZE23 and SIZE25- encoders with flange RE0444
- hollow shaft encoders
- several options for: shaft diameter, connection type and position, case material
Incremental encoders:
- 2 to 36000 pulses per revolution
- different elelectronic output types to interface to any counting and control system.
Single-turn absolute encoders
- 8, 9, 10, 12, 13 bit resolution
- binary or Gray code
Multi-turn absolute encoders
- resolution 5 to 13 bit x 15 bit info/rev.
- binary or Gray code
- SSI serial output signals
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Integrated with the motor
Diameter matching the motor type
Extremely low current consumption
Extremely light and compact
Available in analog and incremental output
Easy to interface
Custom systems available from design to production
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In rotary encoders with integral bearing and stator coupling, the graduated disk of the encoder is connected directly to the shaft to be measured. The scanning unit is guided on the shaft via ball bearings, supported by the stator coupling. During angular acceleration of the shaft, the stator coupling must absorb only that torque resulting from friction in the bearing, thereby minimizing both static and dynamic measuring error. Moreover, the coupling mounted on the stator compensates axial motion of the measured shaft. Other benefits of the stator coupling are:
Simple mounting
Short overall length
High natural frequency of coupling
Hollow-through shaft possible
Rotary encoders with integral bearing that are conceived for separate shaft coupling are designed with a solid shaft. The recommended coupling to the measured shaft compensates radial and axial tolerances. Angle encoders for separate shaft couplings permit higher shaft speeds.
Rotary encoders without integral bearing operate without friction. The two components - the scanning head and the scale disk, drum, or tape - are adjusted to each other during assembly. The benefits are:
Large diameter of hollow shaft
For high shaft speeds
No additional starting torque
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High precision position feedback solutions, including high speed optical linear encoders, precision angle encoders, robust rotary magnetic encoders and a range of laser interferometers.
As well as offering unrivalled performance, Renishaw's non-contact encoder systems have an established reputation for being easy to set-up and install.
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Compact encoder
For industrial standard applications
The traditional type, but at the same time extremely flexible. Absolute encoder available with solid shaft, hollow shaft, blind shaft or integrated coupling.
Double encoder
For redundancy applications
Two redundant absolute encoders with a common shaft or two detection units with a central disc. Various combinations of interfaces possible.
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Feedback devices (for speed and positioning control)
Encoders
- Magneto-resistant (MR)
- Magnetic with hall sensors
- Optical
Resolvers
DC tachos
Characteristics
- High signal resolution (12 - 2048 CPT)
- Precise control
- 2 or 3 channel versions depending on application
- Matched to maxon motors and to maxon control electronics
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ROTARY ENCODER (Ø40/50 SHAFT TYPE)
- INCREMENT TYPE
- WIDE POWER VOLTAGE RANGE
- SIMPLE INSTALLATION STRUCTURE
- VARIOUS OUTPUT SPECIFICATION
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