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Module WPT

DASY8 Module WPT - MAGPy

DASY8 WPT detail2 web

Picture above shows DASY8 Module WPT (updated soon)

SPEAG offers two types of MAGPy systems: one for fast and easy in situ evaluations (MAGPy V2) and one for high precision robot-based evaluations in the lab (Module WPT). DASY8 Module WPT is based on the MAGPy technology integrated in our DASY8 product line for high precision robot-based evaluations. It is the only system for demonstrating compliance of wireless power transfer (WPT) devices according to IEC PAS 63184 (Chapter 8 "Measurement and numerical combination methods") and it enables fully automated compliance testing compatible with FCC KDB 680106 D01 and ISED Canada SPR-002.

System

DASY8 Module WPT is composed of the isotropic probe MAGPy-8H3D+E3D Version 2, the reference probe (MAGPy-RAφ), and the data acquisition system (MAGPy-DAS) mounted to the DASY8 robot via the emergency stop (MAGPy-ES). The induced electric (E-) fields and specific absorption rate (SAR) are assessed with Sim4Life’s Quasi-Static EM Solver (P-EM-QS) using only the measured data. At each probe location, eight isotropic H-field values are acquired in parallel. The dedicated graphical user interface (GUI) fully automates the testing workflow. 

Applications Laboratory evaluation of WPT systems and any other local electromagnetic source not requiring magnetic (H-) field volume scans exceeding 2000 x 1000 x 1500 mm:
  • Evaluation of H-field (3 kHz – 10 MHz)
  • Demonstration of compliance (3 kHz – 4 MHz) according to IEC PAS 63184
Typical Workflows for Compliance Testing 

Basic Restrictions:

  • Probe alignment
  • Teaching the device under test (DUT) position
  • Verification using the appropriate verification sources
  • 3D scan with automated grid optimization
  • Vector potential reconstruction (Sim4Life)
  • Solving the P-EM-QS equation in the muscle half-space
  • Applying coverage factors (pre-determined by the IT'IS Foundation)
  • Advanced evaluations in various posed Sim4Life Virtual Population (ViP) phantoms

Reference Levels:

  • Probe alignment
  • Teaching the DUT position
  • Verification using the appropriate verification sources
  • H-field scans: line (1D), area (2D), volume (3D), arbitrary surfaces (max volume for TX2-90XL: 2000 x 1000 x 1500 mm)
  • Export of H-field data (total, x,y,z): in time or frequency domain
Basic Components

The basic components of DASY8 Module WPT are:

 

MAGPy-DAS

The MAGPy-DAS includes:

  • 27x14 Bit ADC Channels with 25 MSPs
  • Peak detection stage
  • Hardware supervising unit
  • Data transfer to the backend
  • 22 tap FIR Filter
MAGPy-8H3D+E3D V2

The MAGPy-H3D probe consists of eight isotropic H-field sensors and one isotropic E-field sensor:

Probe design:

  • Probe length: 335 mm
  • Probe tip diameter: 60 mm
  • 8H3D: eight isotropic 1 cm3-H-field sensors, arranged at the corners of a 22 mm cube
  • First isotropic H-field sensor plane: 7.5 mm from the tip
  • E3D: one isotropic E-field sensor (dipole / monopole)

Sensor specifications:

  • Frequency range: 3 kHz – 10 MHz
  • H-field dynamic range: 0.1 A/m – 3200 A/m (0.12 µT – 4 mT)
  • H-field extrapolation uncertainty: 0.6 dB (k = 2)
  • E-field dynamic range: 0.08 V/m – 2000 V/m
MAGPy-RAφV2

The MAGPy-RAφ reference amplitude and phase probe includes:

  • Frequency range: 3 kHz – 10 MHz
  • Dynamic range: 0.1 A/m – 3200 A/m (0.12 µT – 4 mT)
  • Loop coil area (sensor size): 18.9 cm2
  • Size: 51 x 51 x 0.2 mm
  • Sensor center: 25.5 x 25.5 mm
Verification

The following wireless power transfer (WPT) verification sources are available:

 

 

Software

Software components:

  • DASY8 Module WPT application programming interface (API)
  • MAGPy-DAS
  • Sim4Life WPT (vector potential reconstruction, P-EM-QS solver)
  • Graphic library
  • Report generator
API

coming

Advanced Sim4Life Evaluation Upgrade Package 

The Sim4Life upgrade package includes all software components required to perform a comprehensive device-specific evaluation of any user scenario. The package includes:

(i) Sim4Life Framework

(ii) Upgrade to P-EM-QS Suite (Unstructured Solver)

(iii) MPI-QS Token (package of six)

(iv) ViP Set for Complete Population Coverage (Whole Body and Hand Phantoms)

  • Posable Ella V3.x Model and Hand
  • Posable Duke V3.x Model and Hand
  • Posable Billie V3.x Model and Hand
  • Posable Thelonious V3.x Model and Hand
  • Posable Eartha V3.x Model and Hand
  • Posable Roberta V3.x Model and Hand
  • Posable Louis V3.x Model and Hand
  • Posable Dizzy V3.x Model and Hand
  • Posable Glenn V3.x Model and Hand
  • Posable Fats V3.x Model and Hand
  • Posable Jeduk V3.x Model and Hand
  • Posable Yoon-sun V3.x Model and Hand

(v) P-EM-QS Link for Complete ViP Package

Calibration Calibrated according to IEC PAS 63184 (ISO/IEC 17025 accreditation pending)
Validation See chapters 8.4 - 8.7 in the manual of DASY8 Module WPT

 

Guidelines Compatibility

DASY8 Module WPT is fully compliant with IEC PAS 63184 (Tier 4):

  • ICNIRP 2020
  • ICNIRP 1998
  • IEEE 2005/ IEEE 2019
  • FCC 2020
  • HC Code 6
Standard Compatibility

DASY8 Module WPT is fully compliant with:

  • IEC PAS 63184 (Tier 4 and Tier 2)
  • FCC KDB 680106 D01
  • ISED Canada SPR-002
Unique Features  
 
  • H-field measurements in air and lossy liquid
  • Accurate local H-field values (loop size: 1 cm2
  • H-field distribution with ±0.2 mm position errors
Benefits  
 
  • No overestimation of exposure
  • Compliance can be demonstrated for field strengths exceeding reference levels by a factor of >1000
  • Fully automated assessment including spectral weighting
  • Accurate local H-field values (loop size: 1 cm2
  • H-field distribution with ±0.2 mm position errors
  • Meeting regulator uncertainty requirement / repeatable evaluations
  • Usage and user-specific evaluations (only with Sim4Life)
  • Compatible with all standards
Compatibility DASY6 Module WPT
Product History See product lifetime
Release Date

January 2023

 
 
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