Digital Encoder

Product Specifications

Technical details and manufacturing context for Digital Encoder

Definition

The digital encoder is a component used in computer, electronic, and optical product manufacturing. It converts angular or linear position into digital signals for processing by digital circuits. As part of an ADC core, it serves as the interface between physical movement and digital processing systems, enabling position feedback, speed measurement, and motion control in industrial and electronic applications. The encoder operates using optical, magnetic, or mechanical sensing elements to detect position changes. As a shaft rotates or a linear scale moves, it generates digital pulses, typically in quadrature format, representing position increments. These pulses are counted and processed to determine position, direction, and speed. The device is available with various specifications, including resolution from 100 to 3600 PPR, output types such as push-pull, open collector, or line driver, and supply voltage from 5 to 24 V DC. Current consumption is up to 50 mA without load. Accuracy is ±0.05° at 20 °C, and repeatability is ±0.01° for incremental encoders. Maximum shaft speed is 6000 rpm, and operating temperature ranges from -40 to 85 °C. Protection class ranges from IP54 to IP65 per IEC 60529. Shaft diameter options are 6 to 10 mm, body diameter 36 to 58 mm, and weight 0.2 to 0.5 kg. Materials include aluminum alloy, stainless steel, optical glass, and printed circuit board. These values are reference ranges; verify model-specific specifications with the manufacturer or supplier before selection or installation.

Working Principle

The digital encoder uses optical, magnetic, or mechanical sensing elements to detect position changes. As the shaft rotates or the linear scale moves, the encoder generates digital pulses, typically in quadrature format, that represent position increments. These pulses are counted and processed by digital circuits to determine exact position, direction, and speed. The output signal can be push-pull, open collector, or line driver, depending on the model.

Common Materials

Aluminum alloy, Stainless steel, Optical glass, Printed circuit board

Technical Parameters

Parameter	Typical range	Notes & selection driver
Resolution	100–3600 PPR	Higher resolution for finer positioning
Output Type	5–24 V DC	Push-pull, open collector, or line driver
Supply Voltage	5–24 V DC	Reverse polarity protected
Current Consumption	≤50 mA	Without load
Accuracy	±0.05 °	At 20 °C
Repeatability	±0.01 °	For incremental encoders
Max. Shaft Speed	6000 rpm	Limited by mechanical design
Operating Temperature	-40–85 °C	Extended range available
Protection Class	IP54–IP65	IP65 for washdownIEC 60529
Shaft Diameter	6–10 mm	Hollow or solid shaft
Body Diameter	36–58 mm	Compact size
Weight	0.2–0.5 kg	Depends on shaft type

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Code Disc
Contains the pattern that generates position signals

Material: Optical glass or metal
Light Source
Emits light through the code disc for optical sensing

Material: LED
Photodetector Array
Detects light patterns to generate electrical signals

Material: Semiconductor
Signal Processing Circuit
Converts raw signals into digital output format

Material: Printed circuit board with ICs

Applied To / Applications

This component is essential for the following industrial systems and equipment:

ADC Core

View system integration details

Manufacturers of Digital Encoder

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Frequently Asked Questions

What is the resolution range of the digital encoder?

The resolution range is 100 to 3600 pulses per revolution (PPR). Higher resolution provides finer positioning, but the exact value must be confirmed for the specific model.

What output types are available?

Output types include push-pull, open collector, and line driver. The supply voltage range is 5 to 24 V DC. Choose the output type based on the interface requirements of your control system.

What is the operating temperature range?

The operating temperature range is -40 to 85 °C. This is a reference range; verify the actual limits for the specific model and application.

What protection class does the encoder have?

The protection class ranges from IP54 to IP65 according to IEC 60529. IP65 is suitable for washdown environments. Confirm the rating for the specific model.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Not applicable (typically atmospheric pressure operation)
other spec:	Resolution: 1-65,536 pulses per revolution, Vibration: 10-2000 Hz at 10g max, Shock: 100g for 6ms
temperature:	-40°C to +85°C (operating), -55°C to +125°C (storage)

Product Specifications

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