Overview
IEC 62047-19:2013 is an international standard developed by the International Electrotechnical Commission (IEC) that defines the terminology, essential ratings and characteristics, and measurement methods for electronic compasses, also known as e-compasses. This standard is specifically designed for e-compasses used in mobile electronic equipment, providing a comprehensive framework for manufacturers and testing bodies to ensure the quality, repeatability, and compatibility of these semiconductor-based micro-electromechanical devices.
The scope of IEC 62047-19:2013 covers e-compasses composed of magnetic sensors alone or in combination with acceleration sensors, supporting various types such as 2-axis, 3-axis, and 6-axis e-compasses. The document sets out clear procedures for ensuring accurate azimuth calculations and reliable performance in portable electronics.
Key Topics
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Terminology and Definitions
The standard establishes a common vocabulary for electronic compass technology, including definitions for:
- E-compass hardware and software components
- 2-axis, 3-axis, and 6-axis configurations
- Terms such as "magnetic north," "true north," and "azimuth angle"
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Essential Ratings and Characteristics
IEC 62047-19:2013 details necessary and recommended performance ratings such as:
- Power supply and input voltage ranges
- Storage and operating temperature limits
- Mechanical shocks (particularly for 6-axis compasses)
- Measurement parameters including sensor sensitivity, linearity, measuring range, frequency bandwidth, and current consumption
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Component Composition
The standard defines typical e-compass architecture, which may include:
- Magnetic sensor section (detects Earth's magnetic field)
- Acceleration sensor section (detects gravity for tilt compensation)
- Signal processing, peripheral hardware, and software sections for data handling and output
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Testing and Measuring Methods
Standardized test methods are provided to ensure repeatable and comparable results for:
- Sensitivity, linearity, and cross-axis sensitivity of the magnetic sensor
- Acceleration sensor sensitivity and offset (for 6-axis devices)
- Output behavior in zero magnetic field conditions
- Power consumption profiles
Applications
IEC 62047-19:2013 is crucial for industries and organizations developing, specifying, or testing electronic compasses for mobile devices, including but not limited to:
- Smartphones and Tablets
Reliable orientation and navigation features are essential for map applications, gaming, and augmented reality.
- Wearable Devices and Smart Accessories
Accurate heading and motion detection support fitness tracking and user interface control.
- Handheld Navigation Tools
Specialty devices such as GPS handhelds and outdoor gear depend on precise compass readings in varied environments.
- Consumer Electronics and IoT
E-compasses are integral to smart home devices, robotics, and location-aware applications.
- Automotive and Industrial Instruments
Embedded compasses contribute to advanced driver-assistance systems (ADAS) and automated machinery.
By adhering to IEC 62047-19:2013, manufacturers and integrators can ensure that their products meet globally recognized standards for accuracy, interoperability, and safety in mobile electronics.
Related Standards
For further context and compatibility, consider these relevant standards:
- ISO 11606
For marine electronic compasses, refer to ISO 11606, which covers compass devices used in nautical applications.
- IEC 62047 Series
This standard is part 19 of the IEC 62047 series, which addresses a broader range of micro-electromechanical devices in semiconductor applications.
- IEC Electropedia
The IEC Electropedia provides a global reference for vocabulary in electrical and electronic technologies.
Implementing IEC 62047-19:2013 supports product quality, accelerates certification, and facilitates market access for electronic compass-equipped mobile devices worldwide.
Open preview (PDF)Semiconductor devices - Micro-electromechanical devices - Part 19: Electronic compasses
