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Linear encoders sense and digitize linear position change for position measurement and feedback to control systems. Linear encoders are available in two types, absolute and incremental, as defined by their position signals. Absolute linear encoders create a unique position signal that is available anywhere along travel. The exact position will be read after power cycling. Incremental encoders do not generate a unique signal. The encoder is zeroed after power-down and relies on another switch or encoder for initial reference. The MicroE Systems’ Linear Encoders includes the below families.
Performance and Value Linear Encoders
Incremental encoders that set a new standard for performance and value. Perfect for a wide range of motion control applications. Linear or rotary. Resolutions from 5µm to 50nm linear, up to 3.3M CPR rotary. Cyclical error only ±40nm. Measuring lengths up to 30m using tape scales. Digital output. LED in the sensor shows encoder status at all times. A ll electronics, including interpolation, in the sensor. Optical index and left / right optical limits. Available software.
The Micro Tape Encoder (MTE) is optimized for linear applications with challenging space and cost constraints where rapid time to market and energy efficiency are critical. Using MicroE’s patented optical detector design, MTE delivers industry-leading sensor size, energy efficiency, and alignment tolerances. The compact sensor is easily installed in top or side mount configuration without any alignment tools or oscilloscopes. An LED in the sensor provides real time indication of system health. Interpolation is performed in the sensor.
MTE works with Compact Encoder Tape (CET), which is only 6mm wide, installs quickly on virtually any surface, and can easily be cut-to-length in the field to minimize inventory and simplify manufacturing logistics.
High-Performance Linear Encoders
Incremental encoders with high performance and outstanding value for a wide range of motion control applications. Linear or rotary. Resolutions from 5µm to 1.2nm linear, up to 268M CPR rotary. Cyclical error as low as ±20nm. Measuring lengths up to 30m using tape scales; accuracy up to ±1µm using glass scales. Digital, analog, or high-speed serial output. Models with all electronics in the sensor. Models with left/right limits and programmable features. Available software.
Incremental encoders with the smallest sensors for compact motion control applications. Screw-mount with cable or mount directly on your PC board. Linear or rotary. Resolutions from 5um to 5nm linear, 6k to 67M CPR rotary. Measuring lengths up to 2m using glass scales; accuracy up to ±1µm. Digital, analog, or high-speed serial output.
Incremental encoders with small vacuum-rated sensors for motion control applications in vacuum. Linear or rotary. Resolutions from 5µm to 1.2nm linear, 6k to 268M CPR rotary. Measuring lengths up to 2m using glass scales; accuracy up to ±1µm. Digital, analog, or high-speed serial output. Rated up to 10-8 torr.