This paper reports a method that enables real-time displacement monitoring and control of micromachined resonant-type actuators using wireless radiofrequency (RF). The method is applied to an out-of-plane, spiral-coil microactuator based on shape-memory-alloy (SMA). The SMA spiral coil forms an inductor-capacitor resonant circuit that is excited using external RF magnetic fields to thermally ac...

In this paper, we report the hexapod type micro robot controlled by the neural networks. MEMS (Micro Electro Mechanical System) technology that based on the semiconductor process is used for fabrication of the microrobot. The rotational actuator is composed of four artificial muscle wires that is family of SMA (shape memory alloy). The power type bare chip IC is used for neural networks control...

Issues of industrialization of RFPE (Reference Free Part Encapsulation) are discussed in this paper. The issues are associated with three topics the location of the workpiece in the initial blank. problems related to material properties of the filler. supported RFPE technique. A new method called Adaptable Locating System (ALS) is presented in this paper. ALS consists of an array of pins which ...

Further development of a three level switching controller [3] is presented. The controller was originally designed to drive a novel Shape Memory Alloy (SMA) actuator consisting of a number of thin NiTi bers woven in a counter rotating helical pattern around supporting disks. While the original controller performed satisfactorily, it was hampered by the presence of limit cycles at higher gains. ...

We propose a new display for presenting 3D forms using a pin-rod matrix. Due to a long range of movement, it is capable of displaying large-scale, dense objects such as human faces or geographical features. In this work, we use a coil-form Shape Memory Alloy (SMA) as a pinrod actuator. The prototype has a 4×4 pin-rod matrix, with a 120[mm] range of motion (which is longer than previous works), ...

Actuators are used to perform a variety of functions in almost every type of electromechanical system, “smart” device, and instrument. Increasingly, in many applications, actuators need to achieve reduced size, mass, power consumption, and cost. Examples of industries that demand novel, miniature, and powerful actuators are medicine, biotechnology, information technology, space, manufacturing, ...