Position Measurements Using Magnetic Sensors for a Shape Memory Alloy Linear Actuator

Vega, Ricardo Cortez; Cubas, Gabriel; Sandoval-Chileño, Marco Antonio; Briones, Luis Ángel Castañeda; Lozada‐Castillo, Norma; Luviano‐Juárez, Alberto

doi:10.3390/s22197460

Cited by 2 publications

(1 citation statement)

References 57 publications

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“…Then, the north magnetic pole of the magnet was aligned with the front face of the sensor, as this arrangement allows for distinguishing between the movements in each of the two degrees of freedom. The detailed procedure of the process can be found in [ 60 ]. In this particular case, the method was simplified for the use of only two sensors.…”

Section: Programming Of the Sma Actuatorsmentioning

confidence: 99%

Snake Robot with Motion Based on Shape Memory Alloy Spring-Shaped Actuators

Cortez,

Sandoval-Chileño,

Lozada-Castillo

et al. 2024

Biomimetics

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This study presents the design and evaluation of a prototype snake-like robot that possesses an actuation system based on shape memory alloys (SMAs). The device is constructed based on a modular structure of links connected by two degrees of freedom links utilizing Cardan joints, where each degree of freedom is actuated by an agonist–antagonist mechanism using the SMA spring-shaped actuators to generate motion, which can be easily replaced once they reach a degradation point. The methodology for programming the spring shape into the SMA material is described in this work, as well as the instrumentation required for the monitoring and control of the actuators. A simplified design is presented to describe the way in which the motion is performed and the technical difficulties faced in manufacturing. Based on this information, the way in which the design is adapted to generate a feasible robotic system is described, and a mathematical model for the robot is developed to implement an independent joint controller. The feasibility of the implementation of the SMA actuators regarding the motion of the links is verified for the case of a joint, and the change in the shape of the snake robot is verified through the implementation of a set of tracking references based on a central pattern generator. The generated tracking results confirm the feasibility of the proposed mechanism in terms of performing snake gaits, as well as highlighting some of the drawbacks that should be considered in further studies.

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Section: Programming Of the Sma Actuatorsmentioning

confidence: 99%

Snake Robot with Motion Based on Shape Memory Alloy Spring-Shaped Actuators

Cortez,

Sandoval-Chileño,

Lozada-Castillo

et al. 2024

Biomimetics

Self Cite

View full text Add to dashboard Cite

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Linear displacement sensor for monitoring engineering structures of buildings and structures

Evtushenko

Kuchumov

2023

Construction and Architecture

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The article provides an analysis of techniques and devices used in monitoring and evaluating the parameters of the stress-strain state of load-bearing structures of buildings and structures. The prototype and the principle of operation of converters for measuring linear displacements under dynamic loads are described. The description of a new innovative linear sensor developed on the basis of an "electro-chemical converter" is given. At the end of the article, the tasks and directions of further research are given.

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Position Measurements Using Magnetic Sensors for a Shape Memory Alloy Linear Actuator

Cited by 2 publications

References 57 publications

Snake Robot with Motion Based on Shape Memory Alloy Spring-Shaped Actuators

Snake Robot with Motion Based on Shape Memory Alloy Spring-Shaped Actuators

Linear displacement sensor for monitoring engineering structures of buildings and structures

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