Stator/Sensor Head for Position Encoders and Resolvers

Product Specifications

Technical details and manufacturing context for Stator/Sensor Head

Definition

The stator/sensor head is the fixed part of a position encoder or resolver system that contains the sensing elements (such as coils, Hall effect sensors, or optical detectors) which detect the position of the rotating rotor. It serves as the reference point for measuring angular displacement, speed, or direction in electromechanical systems. The sensor head is typically mounted to the machine frame or housing, while the rotor is attached to the rotating shaft. The sensing elements interact with the rotor through electromagnetic, optical, or magnetic fields, and the resulting signals are processed to provide position feedback. The stator/sensor head is designed to withstand industrial environments, with protection ratings up to IP67 and resistance to vibration and shock as per IEC standards. It operates over a temperature range of -40 to 85 °C and can be stored from -40 to 125 °C. The electrical characteristics include a rated voltage of 5–24 V DC, current consumption of 10–50 mA, and an analog output signal of 0.5–4.5 V DC. Digital resolution ranges from 12 to 16 bits, with accuracy of ±0.1° to ±0.5°. The component is constructed with materials such as ferrite core, copper winding, epoxy resin, and aluminum housing. It is important to verify model-specific parameters and standards with the legal manufacturer or supplier, as the values provided are typical reference ranges.

Working Principle

The stator/sensor head generates or receives electromagnetic, optical, or magnetic signals that interact with the rotating rotor. As the rotor moves, it modulates these signals (through changing magnetic fields, light patterns, or inductive coupling), which the sensor head detects and converts into electrical signals representing position data. The sensing elements are arranged to provide a sinusoidal or digital output that can be decoded to determine angular position, speed, and direction. The design ensures that the sensor head remains stationary, providing a stable reference for measurement.

Common Materials

Ferrite core, Copper winding, Epoxy resin, Aluminum housing

Technical Parameters

Parameter	Typical range	Notes & selection driver
Rated Voltage	5–24 V DC	Typical supply for sensing electronics
Current Consumption	10–50 mA	Depends on sensing technology
Output Signal	0.5–4.5 V DC	Analog ratiometric output
Resolution	12–16 bit	Digital resolution for position sensing
Accuracy	±0.1–±0.5 °	Angular accuracy of position measurement
Operating Temperature	-40–85 °C	Industrial temperature range
Storage Temperature	-40–125 °C	Non-operating storage limit
IP Rating	IP54–IP67	Protection against dust and waterIEC 60529
Vibration Resistance	10–2000 Hz	Sinusoidal vibration test rangeIEC 60068-2-6
Shock Resistance	50–100 g	Peak acceleration during shockIEC 60068-2-27
Insulation Resistance	≥100 MΩ	At 500 V DC test voltageIEC 60243-1
Dielectric Strength	500–1000 V AC	Withstand voltage for 1 minuteIEC 60243-1
Weight	50–200 g	Depends on size and materials

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

Sensor Coil Part
Generates or receives electromagnetic signals for position detection

Material: Copper wire with enamel insulation
Core Lamination Part
Provides magnetic path and reduces eddy current losses

Material: Silicon steel
Housing Part
Protects internal components and provides mounting interface

Material: Aluminum alloy
Connector Part
Electrical interface for signal and power connections

Material: Plastic with brass contacts

Applied To / Applications

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

Position Encoder/Resolver

View system integration details

Manufacturers of Stator/Sensor Head

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Frequently Asked Questions

What is the function of the stator/sensor head?

The stator/sensor head is the stationary part of a position encoder or resolver that contains the sensing elements. It detects the position of the rotating rotor by generating or receiving signals that are modulated by the rotor's movement, and converts these into electrical signals for position feedback.

What are the typical electrical specifications?

Typical specifications include a rated voltage of 5–24 V DC, current consumption of 10–50 mA, and an analog output of 0.5–4.5 V DC. Digital resolution is 12–16 bits, and accuracy is ±0.1° to ±0.5°. These are reference ranges; always confirm with the manufacturer for the specific model.

What environmental conditions can it withstand?

The stator/sensor head is designed for industrial use, with an operating temperature range of -40 to 85 °C and storage from -40 to 125 °C. It has an IP rating of IP54–IP67, and is tested for vibration (10–2000 Hz) and shock (50–100 g) per IEC standards.

What materials are used in its construction?

Common materials include ferrite core, copper winding, epoxy resin, and aluminum housing. These materials provide magnetic properties, electrical insulation, and mechanical protection. Specific material grades may vary by manufacturer.

Data Basis

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

Preliminary Technical Classification

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pressure:	Atmospheric to 2 bar
other spec:	Vibration: 10g max, 5-2000 Hz; IP67 rating
temperature:	-40°C to +125°C

Stator/Sensor Head

Product Specifications

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