Digital Microrobotics Using MEMS Technology

Haddab, Yassine; Chalvet, Vincent; Qiao, Chunming; Lutz, Philippe

doi:10.1007/978-1-4419-9985-6_5

Cited by 6 publications

(6 citation statements)

References 14 publications

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“…Firstly, this pulse mode control ensures a low energy consumption because there is no need of energy to hold the mobile part in discrete position [10,11]. The control can also lead to a very simple open loop binary control [12,13] because the digital actuation ensures highly repeatable and accurate discrete positions which do not need external measurement systems [14]. The integration of these actuators in mechanical or mechatronic systems is then easy.…”

Section: Introductionmentioning

confidence: 99%

“…In standard functioning, the mobile part of digital actuators can indeed not stop in an intermediate position located between two discrete positions. This limitation can be overcome since variable strokes can been achieved using an assembly of several digital actuators [12]. Otherwise, a crucial requirement to ensure high-precision tasks is the high manufacturing quality required for digital actuators (surface, tolerance, etc.)…”

Section: Introductionmentioning

confidence: 99%

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Design and Characterization of a High-Precision Digital Electromagnetic Actuator with Four Discrete Positions

et al. 2015

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A high-precision planar digital electromagnetic actuator with two displacement directions and four discrete positions is presented in this paper. The four discrete positions are located at each corner of a square cavity where a mobile permanent magnet moves thanks to Lorentz forces generated when a driving current passes through two orthogonal wires placed below the cavity. Four fixed permanent magnets are placed around the cavity in order to ensure high-precision magnetic holding of the mobile magnet at each discrete position. An analytical model of the actuator is presented and used to characterize its properties (switching time, energy consumption, and displaceable mass). Based on this model, an experimental prototype has been developed and then characterized. Comparisons between experimental and simulated results are carried out and show good agreement. The positioning repeatability errors have also been characterized according to the input signal in order to qualify the digital behavior of this high-precision actuator. Finally, an application of this digital actuator as a linear conveyor is presented and experimentally tested.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and Characterization of a High-Precision Digital Electromagnetic Actuator with Four Discrete Positions

et al. 2015

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“…All intermediate positions located between the discrete positions are only transient states and the mobile part cannot stop in these positions. [2] To control the actuator, energy pulses are used only during the switching of the mobile part that limits the energy consumption of these actuators. A holding of the mobile part in discrete positions without any energy consumption is also provided in digital actuator.…”

Section: Introductionmentioning

confidence: 99%

1X4 Optical Switch Based on Digital Actuator

Hajjar

Petit

Lamarque

et al. 2015

International Journal of Optomechatronics

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International audienceIn this article, an optical fiber switch based on a digital actuator is presented. Four discrete positions are obtained through a magnetic holding of a Mobile Permanent Magnet (MPM) placed in a fixed square cavity. The MPM can switch, thanks to Lorentz's force, between the four corners of the cavity. A 1X4 optical fiber switch is obtained by fixing a prismatic mirror on the top side of the MPM and an N × N switch array can be obtained using a matrix of this unit. After a presentation of the actuator principle, the optical switch is detailed and characterized for telecommunication purpose

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“…These switches are based on different technologies offering different switching speed, insertion loss, cross talk and with different sizes (i.e, number of input and output channels). To realize switches, the digital actuation principle is well adapted because the mobile part of a digital actuator can only switch between several, generally two, well known and repeatable discrete positions [2]. These positions correspond to the states (generally two: ON/OFF) of the switches.…”

Section: Introductionmentioning

confidence: 99%

“…The first one is about the stroke which is fixed at the manufacturing. Variable stokes can however be achieved using several digital actuators [2].…”

Section: Introductionmentioning

confidence: 99%

1 × 4 Optical switch based on a four discrete position digital actuator

Petit

Hajjar

Terrien³

et al. 2014

2014 IEEE/ASME International Conference on Advanced Intelligent Mechatronics

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In this paper, a 1 × 4 fiber optical switch based on an electromagnetic digital actuator having four discrete positions is presented. The mobile part of the actuator consists of a permanent magnet which can switch along two orthogonal directions and between four discrete positions. A mirror, fixed on the top side of the mobile part, reflects the collimated optical signal from an input fiber to one of four reception fibers depending on the mobile magnet position. The design of the digital actuator and the architecture of the switch are firstly described. An experimental prototype of the switch is then presented and experimental results are shown to demonstrate the feasibility of the proposed switch.

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Digital Microrobotics Using MEMS Technology

Cited by 6 publications

References 14 publications

Design and Characterization of a High-Precision Digital Electromagnetic Actuator with Four Discrete Positions

Design and Characterization of a High-Precision Digital Electromagnetic Actuator with Four Discrete Positions

1X4 Optical Switch Based on Digital Actuator

1 × 4 Optical switch based on a four discrete position digital actuator

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Digital Microrobotics Using MEMS Technology

Cited by 6 publications

References 14 publications

Design and Characterization of a High-Precision Digital Electromagnetic Actuator with Four Discrete Positions

Design and Characterization of a High-Precision Digital Electromagnetic Actuator with Four Discrete Positions

1X4 Optical Switch Based on Digital Actuator

1 &#x00D7; 4 Optical switch based on a four discrete position digital actuator

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Product

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1 × 4 Optical switch based on a four discrete position digital actuator