Incremental Encoders

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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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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Absolute Encoders

U. S. Digital

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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Transmissive Optical Encoder Module

EM2 - U. S. Digital

The EM2 provides digital A & B quadrature outputs with a third output index channel. Each EM2 module is resolution specific and is matched to the resolution of a code wheel. The EM2 operates with a single 5V supply and provides single ended outputs which are capable of both sinking and sourcing 5mA. An internal 0.1 uF decoupling capacitor is designed into the EM2 to provide enhanced noise immunity.

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Transmissive Optical Encoder Module

EM1 - U. S. Digital

The EM1 is a transmissive optical encoder module designed to be an improved replacement for the Avago HEDS-9000 series encoder module. This module is designed to detect rotary or linear position when used together with a code wheel or linear strip. The EM1 consists of a lensed LED source and a monolithic detector IC enclosed in a small polymer package. The EM1 uses phased array detector technology to provide superior performance and greater tolerances over traditional aperture mask type encoders.

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Transmissive Rotary Codewheel

HUBDISK-1 - U. S. Digital

US Digital offers a wide variety of standard hub / disk assemblies (optical encoder disks attached to an aluminum hub) to aid with mounting on a shaft. Encoder disks may also be ordered as a stand alone item (see the Disks page). These rotary encoder disks are made from mylar polyester film. This material allows for a wide temperature range and is virtually unbreakable.

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Transmissive Rotary Codewheel

HUBDISK-2 - U. S. Digital

US Digital offers a wide variety of standard hub / disk assemblies (optical encoder disks attached to an aluminum hub) to aid with mounting on a shaft. Encoder disks may also be ordered as a stand alone item (see the Disks page). These rotary encoder disks are made from mylar polyester film. This material allows for a wide temperature range and is virtually unbreakable.

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Transmissive Rotary Disk

DISK-1 - U. S. Digital

US Digital offers a wide variety of standard rotary encoder disks. They may be ordered as a stand alone disk (see below) or as a codewheel (see the Disks page). These rotary encoder disks are made from mylar polyester film. This material allows for a wide temperature range and is virtually unbreakable. There is no minimum order.

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Transmissive Rotary Disk

DISK-2 - U. S. Digital

US Digital offers a wide variety of standard rotary encoder disks. They may be ordered as a stand alone disk (see below) or as a codewheel (see the Disks page). These rotary encoder disks are made from mylar polyester film. This material allows for a wide temperature range and is virtually unbreakable. There is no minimum order.

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