Below is an overview of the competences and in-house expertise offered by NablaBe Innovation. As examples of how these competences and expertise have been operationalized in various R&D projects throughout the last 20 years,  you can also find further below the list of patents where the founder of NablaBe Innovation is listed as an inventor of the patented invention. Complementary expertise and competences can also be brought into particular projects from our collaborating partners.

COMPETENCES

Magnetic Levitation Systems

Some systems (e.g., those working in vacuum or high precision stages) require highly-diminished mechanical friction.  For such applications, magnetic levitation is the answer. Magnetic levitation architectures can be designed in various forms, such as Lorentz-based planar drives, reluctance-actuators-based hanging topologies, multi- DOF (degrees of freedom) linear actuators, or the addition of magnetic bearings to standard actuators. System specifications should be thoroughly evaluated before the right choice is made.

High Precision System Actuators

In high precision applications, planar, short-stroke and long-stroke linear, and rotary actuators should be designed with great care. Particular attention should be paid to all disturbance sources arising from the magnetic design of the motor. These sources are not only limited to the known phenomena like cogging forces, but also others such as the effect of dimensional tolerances, permanent magnet strength tolerances, driver currents effects. The minimization of the effect of such disturbances at the system level requires a thorough evaluation of the alternative magnetic topologies.

Magnetic & Electrostatic Design

The design of many devices relies on electromagnetic and electrostatic principles. The application areas are certainly not limited to well-known motors and generators. Magnetic coupling of two mechanical parts is the principle behind many simple applications, such as bags or refrigerators.  With our magnetic and electrostatic design competences, we can design more sophisticated devices that can be used in applications such as the separation of magnetic particles from other substances , simple and cost effective magnetic (or electrostatic) sensors, even magnetic gear systems.

Energy Harvester Design

Especially with the increased interest in Internet of Things (IoT) applications, sensors are used in many places to collect data. These sensors need power and if they need to be in places not accessible by the conventional means power transmission (such as rotary or moving parts), sensors can be powered either by means of wireless power transfer or energy harvesters.  In rotational or movable units, electromagnetic power harvesting can be particularly effective.  With our electromagnetic design competences we can provide solutions incorporating efficient power harvesters.

Motor/Generator design

In some applications standard off-the-shelf motors or generators may not comply with the requirements. With our motor/generator design competences, we can make tailor-made motor designs that meet such requirements. Such custom-designed motors can be of any type that meets the given system requirements, such as permanent-magnet synchronous, induction (asynchronous), switched reluctance, hybrid reluctance, or stepper motors.

Wireless Power Transfer

Although wireless power transfer that draws on the magnetic inductance principles is well known since the times of Nikola Tesla, only recently we have been seeing actual implementations in our daily lives. Examples are mobile phone charging or wireless charging of low power devices (e.g., an electric toothbrush).  There are also opportunities for the implementation of wireless power transfer in industrial applications where troublesome cables need to be taken out of the way or when energy transmission needs to facilitated over an obstacle, such as a wall, glass or a vacuum chamber.  A well-designed wireless power transformer can provide efficient transmission through a wide range of media without perforation and cables.

Mechatronics System Architecture

In the hearth of most mechatronics systems, lies a motor or an actuator. It is always good practice to identify what is possible and what is not already from day 1. The system architecture experience we have can help our customers to start determining system requirements and factors critical to quality, to identify risks, to create concept designs make the right choice according to your needs, and to build your system architecture in a systematic way.

 

IN-HOUSE EXPERTISE IN

– Electromagnetics
– Mechatronics
– Finite Element Analysis
– Optimization & Numerical Methods
– Electrical motor/actuator control
– Drive Electronics
– Thermal Analysis

PATENTS

Title

Applicant

Google Patent Links (Click on the country abbreviation to view)

1) Generator assembly for recovering energy in bearing assembly, has coils that are placed and oriented, such that winding axles of coils is oriented in circumferential direction relative to rotational axis of bearing assembly

SKF

DE, US, GB, CN

2) Power generator assembly for use in train axle box used in railway bogie side frame, has permanent magnets configured to avoid magnetic flux leakage or cross talk between magnetic flux circuits pertaining to adjacent generator units

SKF

GB, WO, CN, WO

3) System for tracking medical instrument coupled to medical device, has tracking system configured to track multiple electromagnetic sensors to determine virtual axis position in tracking space

Philips N.V.

CN, EP, US, WO

4) Treatment device for temporarily or permanently placing therapeutic device in part of corpus of living being, has impedance sensor element coupled to detection device for detecting presence of therapeutic device at specific position

Philips N.V.

WO, EP, CN, US, JP, CN, EP

5) Fluid circulation system e.g. heating system, for circulating amount of gas between heat exchangers through circulation circuit, has elimination unit for eliminating magnetic field on exterior portion, where field comprises auxiliary sleeve

Spiro Enterprises B.V.

6) Fluid circulation system for circulating amount of fluid between heating/cooling systems, has magnetic separator with flexible unit that is provided with one end to actuate translatory movement of magnet device

Spiro Enterprises B.V.

7) Voltage converter for use as robust inductive power coupling for facilitating inductive transfer of electric power, has output circuitry converting alternate current voltage to output voltage including lower frequency than chopper frequency

Philips N.V.

WO, CN, EP, US

8) Magnetic bearing, used in rotary stage and reflective electron beam lithography apparatus, comprises a cylindrical rotor, a static hub, a lift magnetic actuator apparatus, and a radial magnetic actuator apparatus

Philips N.V.

WO, EP, US, EP, CN, JP, US, CN, EP, JP

9) Rotating ring apparatus for use in computer tomography (CT) scanner as gantry, has controller which is configured to control rotation unit to rotate and levitate the rotating induction component

Philips N.V.

WO, WO, US, CN, US, CN

10) Lithographic apparatus for use in manufacture of integrated circuit, has bearing that is configured to restrict rotational movement of one portion of lithographic apparatus around X and Y directions

ASML Netherlands B.V.

11) Magnetic suspension positioning system used in high end semiconductor industry has magnetic motor that is partially integrated with magnetically suspended object and operates to actively control any movement of magnetically suspended object

Philips N.V.

12) Electroactive polymer actuator for use as e.g. camera diaphragm, has frame coupled to electrodes and polymer, to prevent expansion of polymer in direction opposite to direction of compression of polymer

Philips N.V.

WO, EP, CN, JP, US

13) Electrostatic displacement device for moving an object e.g. semiconductor, non-ferromagnetic metal, includes electrodes arranged to generate electric field that extends over area equivalent to surface area of object e.g. wafer

Philips N.V.

WO, EP, CN, JP, US

14) Coil assembly used with magnet track of linear motor, has multiple concentrated multi-turn coils that are arranged in overlapping manner such that end windings of the coils are pressed together

Philips N.V.

WO, EP, CN, JP, US

15) Linear electric motor for use as actuator, has turns wound in periphery of soft magnetic core, and permanent magnets are arranged along periphery in longitudinal direction such that magnets are arranged at different angles to core

Philips N.V.

WO, EP, JP, US, CN

16) Synchronous motor, has two sets of permanent magnets cooperating with single stator comprising weakly magnetic material

Eindhoven University of Technology