Tracking Sensors & Applications
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Publisher: PREMO S.L. Authors: Ezequiel Navarro Pérez, Antonio Rojas Cuevas, Claudio Cañete Cabeza, Andrés García Morilla, Sergio Cobos Reyes, Antonio Serrano Sillero, Juan Esteo García, Lucía Vera Mahiques. English revision: Rob Pagones and Sergio Lorenzi Agustín. Design and layout: María de Andrés Arranz. Print: Altagrafics Inversiones Gatellco 3 Sl / Avenida de la Aurora 28, 29002 Málaga PUBLISHING HOUSE Agencia del ISBN en España ISBN First edition All rights reversed Málaga, Spain, December 2017. PREMO S.L. Severo Ochoa 47 Parque Tecnológico de Andalucía 29590 Campanillas - Málaga -...

vr em motion tracking sensors & applications Innovative Magnetics have a significant rote in sensing and tracking position and motion in immersive Virtual and Augmented Reality systems. Premo is committed to contribute with World Class Innovative components to the Key Enabling Technologies of the 4th Industrial Generation. 4 patents have been filed for VR Tracking sensors in less than 6 months. With this book we start a series of publications on our contribution to a coming better world from our experience, vision and value proposition. This is a recognition and tribute to our team of...

chapter 1 i pag 4 10 KEY CRITERIA FOR CHOOSING EM TRACKING SENSORS By Ezequiel Navarro Perez chapter 2 | pag 22 VR MARKET UPDATE: THE ECONOMIST'S VIEW By Ezequiel Navarro Perez et Al chapter 3 | pag 44 DESIGN FOR EMTS MANUFACTURING. VR/AR COMPONENTS By Andres Garcia Morilla chapter 4 | pag 58 AR/VR TECHNOLOGY WILL IT CHANGE THE WORLD? By Antonio Rojas Cuevas chapter 5 | pag 66 GEOMETRIC SYMMETRY IN VR/AR ELECTROMAGNETIC MOTION TRACKING SENSORS By Ezequiel Navarro Perez et Al chapter 6 | pag 88 WHAT ARE ELECTROMAGNETIC TRACKING SYSTEMS? By Ezequiel Navarro Perez et Al chapter 7 | pag...

VR EM MOTION TRACKING SENSORS & APPLICATIONS

10 KEY CRITERIA FOR CHOOSING TRACKING SENSORS By Ezequiel Navarro Pérez VR EM MOTION TRACKING SENSORS & APPLICATIONS

01 10 Key criteria for choosing tracking sensors ABSTRACT Hardware designers have to confront a very wide array of quick decisions when setting and freezing a design. Choosing state-of-the-art standard components that are commodities like capacitors, resistors, Op Amps or drivers is relatively fast, as there are plenty of compatible options, of similar performance and cost. However, when it comes to DSP (digital signal processors) and microcontrollers, a joint decision is made usually between the hardware engineer and the system architect, taking into consideration software/firmware...

Choosing the right digital hardware in virtual reality and augmented reality systems is one of the most important important decisions you will make, and it's trickier than it seems. Every aspect of the future product, from cost to performance, flexibility and marketing strategies will depend on those decisions for the duration of the product lifetime. VR EM MOTION TRACKING SENSORS & APPLICATIONS

That being said, the performance of a virtual and augmented reality motion tracking system also lies in the selection of the right tracking technology: >> Visual/ Optical >> IMU (Inertial Measurement Units) >> Electromagnetic, within which we can point out two types: • DC permanent or pulsed magnets • AC Electromagnetic sensing 3DCOILS, THE PRISTINE 3D EM TRACKER FOR VIRTUAL AND AUGMENTED REALITY 8 VR EM MOTION TRACKING SENSORS & APPLICATION

Introducing 3DCoils, the pristine 3D EM tracker for virtual and augmented reality. Among its many advantages, it boasts: >> Lower Latency: real-time data output provide immediate feedback without post-processing of position and orientation data. >> No line of sight needed: LF Magnetic Fields can reach antennae through solid objects. >> Sensors are never occluded. >> No fixed referenced emitter or multiple fixed calibration elements. >> Can deliver longer range tracking than competing technologies. >> Operates at lower power levels. >> Offers the best signal-to-noise ratios. >> Multiple...

Choosing the right product in TX/RX 3D tracking sensor for VR We have created a short-list of recommended parameters to look into: 1. Function & performance 2. R&D and prototyping Lean Innovation Support 8. Logistics and global supply >>Manufacturing mode 10. Total cost of operation : Capex / Opex 10 VR EM MOTION TRACKING SENSORS & APPLICATIONS

FUNCTION & PERFORMANCE iB 3D PERFORMANCE MAGNETIC PERFORMANCE QUALITY & RELIABILITY ^^JEVEUJPMETI^OST » CAPEX PREMO |VR EM MOTION TRACKING SENSORS & APPLICATIONS 11

Let´s look into these recommended factors one by one: 1 FUNCTION & PERFORMANCE The maximum available power, i.e. the maximum TX Current, will determine the max H field intensity. The constraints of the systems will be related to material magnetic saturation as a function of N x I product in the TX emitter antennas (N being the number of turns and I the electric current). TX emitter antennae’s maximum capabilities are determined by soft magnetic material induction saturation (if a ferrite or any equivalent soft magnetic material is used), and by max output current, as a consequence of the...

In Premo’s line of TX 3D motion tracking electromagnetic transmission coils, we recommend 3DCoilCubesTM, a low profile 3D TX antenna built with soft magnetic materials to minimize volume and size and maximize the generated magnetic field as a multiple of the effective magnetic permeability. Air coils do have less THD than soft magnetic material coils, however you should take into account that they are bulky and their generated fields are usually weaker and less directional. Premo uses high frequency, high permeability MnZn ferrite cores, or PBM, or Alma cores in its 3DCoilCubesTM and Lp 3D...

3 DFM | DESIGN FOR MANUFACTURABILITY Winding a few turns around a bobbin, a coil-former or directly over a piece of magnetic core is a very simple operation that can lead to confusion. This simple process may be good for a mockup sample but, when you need to produce millions, the most important factors to take into account are high repeatability, isotropy and a high merit figure of MTBF that assures not only 0ppm in field failures, but most importantly, 0ppm during the product lifetime. When choosing an EM tracking sensor for your project, you not only have to consider the early stage of...