Absolute Encoders
Measure motion by resolving unique signal output for every movement.
See Also: Encoders, Encoder Test, Incremental Encoders, Linear Encoders
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Absolute Encoders
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US Digital designs and manufactures absolute encoders in both optical configurations, for the highest possible resolution and accuracy, and magnetic versions for demanding environments. In either case, absolute encoders report a shaft angle within a single 360-degree shaft rotation without stops or gaps. Unlike incremental (sometimes called "relative") encoders, absolute encoders provide true (absolute) shaft position, eliminating the need for a "home" or "zero" cycle after a supply-voltage power cycle.
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Encoders
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At Variohm we have a range of encoders we can offer. Our range includes Absolute Encoders and Incremental Encoders as well as Lift Measuring Systems.
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1-Ch SSI Absolute Encoder EtherCAT Slice IO Module
AMAX-5082
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Encoder Type: SSI (Binary / Gray code)Latch Counter ValueComparator *2Compare trigger Output *2
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Absolute Magnetic Kit Encoder
MAE3
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The MAE3 is an absolute magnetic kit encoder that provides shaft position information over 360 of rotation with no stops or gaps. This magnetic encoder is designed to easily mount to, and dismount from, an existing shaft to provide digital feedback information. The MAE3 is available with an analog or a pulse width modulated (PWM) digital output.
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HeavyDuty encoders absolute
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Reliable positioning without the need for referencing. Under the harshest conditions.
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Absolute Quantum Gravimeter
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The Absolute Quantum Gravimeter is the only quantum gravity sensor available on the market place. Thanks to its disruptive technology, this instrument offers unique features:*Absolute gravity measurement at the µGal level.*Automated Continuous Data Acquisition for several months. No long-term drift.*Excellent immunity to ground vibrations thanks to an active compensation system (no mechanical isolation).*Easy and quick operation : the AQG is ready to measure within 1h (no laser alignment nor mechanical assembling, no preliminary pumping, no superspring). User-friendly software requiring no knowledge in quantum physics.*Compact and transportable sensor.*Low maintenance constraints (in particular, no moving parts in our vacuum chamber).*Station to station repeatability of the absolute measurement within a few μGal.
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Encoders
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*Designs to proven industrial standard*Compact and robust housing*Hollow shaft encoder for direct mounting on actuators*Versions with integrated fieldbus interface*Cable entry for axial and radial use
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Absolute Optical Encoder
A2
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Product DescriptionRestriction of Hazardous SubstancesThe A2 absolute encoder is a non-contacting optical rotary position sensor which reports the shaft angle within a 360 deg. range. As opposed to incremental encoders, the A2 reports the absolute position rather than the change in position. When powered up, it does not require a home cycle, even if the shaft was rotated while the power was off. In multi-turn mode, it tracks the position in a 32-bit counter as long as the power supply is maintained. Internally, an infrared LED flashes through a circular bar code onto a linear array sensor. The microcontroller decodes the image into a unique position. All user programmable parameters such as resolution, origin, direction and mode are permanently stored in an internal EEPROM
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Contacting Encoders
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Rotary encoders are ideal for use as digital panel controls or position sensing devices in a wide range of applications where digital circuitry is used. These devices are available in contacting and optical types and in various resolutions. Some models are available with push momentary switch and detents.
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Miniature Absolute Magnetic Shaft Encoder
MA3
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The MA3 is a miniature rotary absolute shaft encoder that reports the shaft position over 360 with no stops or gaps. The MA3 is available with an analog or a pulse width modulated (PWM) digital output.
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Absolute Optical Encoder Kit Version
A2K
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The A2K absolute encoder is a non-contacting optical rotary position sensor which reports the shaft angle within a 360 deg. range. As opposed to incremental encoders, the A2K reports the absolute position rather than the change in position. When powered up, it does not require a home cycle, even if the shaft was rotated while the power was off. In multi-turn mode, it tracks the position in a 32-bit counter as long as the power supply is maintained. Internally, an infrared LED flashes through a circular bar code onto a linear array sensor. The microcontroller decodes the image into a unique position. All user programmable parameters such as resolution, origin, direction and mode are permanently stored in an internal EEPROM
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Magnetic Encoders
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The magnetic encoder detects rotational position information as changes of the magnetic field, converts them into electrical signals, and outputs them. The simplest magnetic encoder consists of a permanent magnet and a magnetic sensor.
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Open Optical Encoders
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An optical encoder is an electromechanical device which produces an electrical signal output proportional to the linear displacement of a linear guide or the angular position of an input shaft.Open encoders are exposed and feature no external integrated enclosure. The advantages of open optical encoders include the effective elimination of backlash, shaft wind-up (torsion) and other mechanical hysteresis errors.A rotary open optical encoder consists of a position measurement readhead and an accurate rotary scale marked either on the periphery of a ring or on the face of a disc.The readhead measures position by optically sensing the regularly-spaced scale markings and outputs this information as an analogue or digital signal.The signal is subsequently converted into a position reading by a digital readout (DRO) or motion controller.
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Networked Absolute Inclinometer
T7
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The T7 is available in several interface and protocol options. The physical interface can be RS232, RS485 or US Digital's CAN (Controller Area Network). The protocol can be either US Digital's serial protocol or Modbus RTU. The RS232 version supports a single T7 with up to 100 ft of cable. For users that need longer cable lengths or multiple T7s on a single bus, the RS485 or US Digital CAN (Controller Area Network) version can be used. The USD-CAN protocol allows a network of up to sixty-four T7s to be connected to a single host. Power for each T7 is supplied over the CAN network cable. The host accesses the USD-CAN T7s through US Digital's low cost CANA-232/CANA-485 adapter module. This module allows the host to access each T7 on the network using simple, easy serial port commands, just like the RS232 version. The RS485 version supports up to 32 T7s on the bus.
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TMR Rotary Encoders
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MultiDimension Technology Co.,Ltd.
• on axis assembling• Incremental• Pulse output
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Encoder & Trigger
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High performance counter and multifunction I/O cards and trigger boards provide a variety of mapping functions between comparator and trigger output.
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Exposed Linear Encoders
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Exposed linear encoders consist of a scale or scale tape and a scanning head. Their photoelectric scanning method is touch-free and wear-free, detecting graduation lines just micrometers in width and producing output signals with very short signal periods.
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Encoders For Synchronous Motors
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Precise optical scanning - for optimum signal and control quality in your application. Compact designs from 36 mm enable space-saving installation. Open real-time digital protocol.
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UNIVERSAL MULTI-SERVICE ENCODER
Electra 9200
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The Electra 9200 is a multichannel, multi-service encoder in a compact, energy-efficient 1-RU chassis. Part of a complete video headend solution, the encoder supports main and secondary SD or HD channels of constant bitrate (CBR) or variable bitrate (VBR) video using either MPEG-2 or MPEG-4 AVC encoding. It offers high bandwidth efficiency and channel density—up to four audio/video input processing modules per chassis.
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Absolute Luminous Flux Integrators
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Photometric Solutions International Pty Ltd
The Absolute Luminous Flux Integrator (ALFI) is a special device for absolute measurement of the luminous flux output of lamps. It can also to measure the luminous intensity distribution of small lamps and luminaires.
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Universal Encoder Checker
Talon
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Test digital Encoders (5, 12, & 24 Volts)Troubleshoot Digital Read Outs (DRO's)Count / verify Pulses Per Revolution (PPR)Adjust Encoder after cleaning or repairTest for weak or dead signal outputTest for intermittent phase jitter
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Encoders
380 / 470 Rotary Shaft Encoders
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The 380 Encoder is a standard industrial grade encoder available with single channel or bi-directional (quadrature) output. The 470 Heavy Duty Encoder provides a bi-directional (quadrature) output with an index pulse.• Square-wave frequency output• NPN open-collector and line driver (470) options• 5-28 VDC powered
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T8990 ABSOLUTE DECAY UNIVERSAL LEAK TESTER
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A touch of innovationThe new T8990 leak tester was designed to improve what was considered the best device in ForTest's history, the M8990.The new video controller “ForTest MMI” brought a superior level of human-machine interaction, thanks to an innovative capacitive panel in tempered glass, around a splendid 6.2” colour display.
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Bearingless encoders
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Baumer bearingless encoders offer contactless, magnetic and wear-free operation. Their reliable function is not affected by dust, dirt or moisture. They are extremely resistant to shocks and vibrations and have a virtually unlimited lifetime.
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Industrial Absolute Pressure Transducers
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These industrial Baratron® capacitance manometers feature absolute pressure measurement, industrial enclosures, and higher operating temperature ranges for industrial applications.
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Encoder Testing
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HEIDENHAIN offers testing and inspection devices for the adjustment and fault diagnosis of its encoders. The highly accurate inspection devices are universally deployable, capable of being calibrated and interposed within the closed control loop. The testing devices are primarily used for the functional testing and adjustment of encoders. HEIDENHAIN encoders deliver all of the setup, monitoring, and diagnostic data needed.
