Overview
IEC 63150-3:2025 defines standardized measurement and evaluation methods for impact-driven kinetic energy harvesting devices subjected to practical human foot impacts. The standard applies primarily to wearable, shoe‑mounted energy harvesters whose main power source is the impact force produced by walking or running. The measurement approach is independent of the transduction principle (piezoelectric, electrostatic, triboelectric, electromagnetic, etc.) and focuses on large‑amplitude, low‑frequency impulsive excitation representative of human motion.
Key Topics and Technical Requirements
- Scope and terminology
- Definitions for impact-driven energy harvesting devices and related measurement terms.
- Test bed configuration
- Mandatory functional blocks: device under test (DUT), vibration exciter, mounting fixture, function generator, power amplifier, accelerometer, data recorder, load resistance.
- Direction of impact force is generally parallel to gravity and derived from human foot motion.
- Input waveforms
- Reproduction of typical foot impacts using half‑cycle sine pulses (or similar impulsive shapes) to simulate walking and running conditions.
- DUT preparation and confirmation
- Confirm and record the energy‑conversion principle (piezoelectric, triboelectric, electromagnetic, etc.) and mount the DUT for stable impact application.
- Test conditions
- Parameters for applied impact forces, selectable load resistances, and controlled environmental conditions.
- Measurement procedures
- Procedures for recording input impulsive force (acceleration, duration) and output electrical performance (time‑domain voltage, power, energy under load).
- Reporting
- Mandatory and optional test report items (device description, test setup, input parameters, measured outputs). The standard includes example results (e.g., Annex A with piezoelectric cantilever experiments).
Practical Applications and Users
IEC 63150-3:2025 is useful for:
- Wearable device manufacturers developing shoe‑integrated or impact‑sensing energy harvesters.
- Test laboratories and certification bodies performing repeatable, comparable performance assessments.
- R&D teams and universities studying human-motion energy harvesting and optimizing transducer designs.
- Product developers validating energy budgets for low‑power electronics in wearables (sensors, communications, health monitors).
Benefits include repeatable benchmarking across different transduction technologies, realistic simulation of walking/running impacts, and a consistent test report format for product evaluation and comparison.
Related Standards (if applicable)
- Other parts of the IEC 63150 series (Measurement and evaluation methods of kinetic energy harvesting devices).
- General IEC/ISO directives referenced for standard development and terminology (see IEC Electropedia for definitions).
Keywords: IEC 63150-3:2025, impact-driven energy harvesting, human foot impact motion, shoe-mounted energy harvester, wearable energy harvesters, measurement methods, vibration exciter, half-cycle sine pulse, piezoelectric, triboelectric, electromagnetic, test report.
Open preview (PDF)Semiconductor devices - Measurement and evaluation methods of kinetic energy harvesting devices under practical vibration environment - Part 3: Human foot impact motion
