This article presents a low-cost and portable phase-variation planar microwave sensor
operating in reflective mode, where the output variable, the phase of the reflection coefficient …

This article presents a novel concept for the implementation of electromagnetic encoders
exhibiting very high data density per unit length (DPL), a figure of merit (FoM) of such …

This article presents a novel highly linear reflective-mode displacement sensor based on
planar microwave technology. The sensor consists of two parts: 1) the stator, or reader, a …

Synchronous electromagnetic encoder systems exploiting phase encoding to boost up the
number of bits per encoder position are reported in this article. The reader is a one-port …

This paper proposes a method to improve the angular velocity measured by a low-cost
magnetic rotary encoder attached to a brushed direct current (DC) motor. The low-cost …

A distance sensor based on a spiral resonator (SR) label printed on a dielectric substrate
and remotely interrogated through a small loop antenna acting as reader is presented. The …

This paper presents a technique to increase the density of bits per unit length (DPL), a key
figure of merit, in linear electromagnetic encoders. Such encoders are a low-cost alternative …

This article proposed an angle measurement method based on second harmonic generation
(SHG) using an artificial neural network (ANN). The method comprises three sequential …

In this paper, two kinds of H-shaped planar microwave sensors are proposed for
displacement detection. For the first sensor, the movement of the mover can be retrieved by …

An optical angle sensor based on the collimated mode-locked femtosecond laser (Fs) beam,
in which the angle measurement is carried out by observing the second harmonic wave …