Absolute Encoders

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

U. S. Digital

Wherever precision in motion is of the essence, an encoder is likely to be found. Indeed, it’s hard to name an industry that does not benefit from encoder technology. It is found everywhere from mission-critical applications in the most rugged environments to routine workplace applications that demand uncompromising repeatability.

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Incremental Encoders

U. S. Digital

Incremental encoders provide a relative position with respect to a "home" or zero position. US Digital offers incremental encoders as kits ready for assembly and shaft-equipped encoders, using both optical and magnetic technologies. Also in stock and immediately available are encoder modules and encoder components such as disks and hubdisks.

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Absolute Magnetic Kit Encoder

MAE3 - U. S. Digital

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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Absolute Optical Encoder

A2 - U. S. Digital

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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Absolute Optical Encoder Kit Version

A2K - U. S. Digital

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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Miniature Absolute Magnetic Shaft Encoder

MA3 - U. S. Digital

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 Encoders

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Encoders

Incremental Encoders

Absolute Magnetic Kit Encoder

Absolute Optical Encoder

Absolute Optical Encoder Kit Version

Miniature Absolute Magnetic Shaft Encoder