Three-axis Fluxgate Sensor Error Correction

Three-axis Tactile Sensor

Micro-integrated Double Axis Planar Fluxgate

In this paper a double axis micro-integrated Fluxgate magnetic sensor is presented. The device was designed using a PCB dual axis sensor previously realized as a starting point. In the PCB version the experimental results exhibit excellent agreement with the simulations performed using a tool based on the finite element method. Using the same design approach a version of the double axis Fluxgat...

A 3-Axis Miniature Magnetic Sensor Based on a Planar Fluxgate Magnetometer with an Orthogonal Fluxguide

A new class of tri-axial miniature magnetometer consisting of a planar fluxgate structure with an orthogonal ferromagnetic fluxguide centrally situated over the magnetic cores is presented. The magnetic sensor possesses a cruciform ferromagnetic core placed diagonally upon the square excitation coil under which two pairs of pick-up coils for in-plane field detection are allocated. Effective pri...

Forward Error Correction in Sensor Networks

In any network, there are two basic methods to recover errorneous packets. One way is to use Automatic Repeat Request (ARQ), and another is Forward Error Correction (FEC). Since, in sensor networks, power is scarce and is primarily consumed by wireless transmission and reception, we would prefer to use FEC rather than ARQ. In this paper we determine empirically the error characteristics of wire...

Dynamic Error Correction of Force Sensor

The author has proposed a method, the Levitation Mass Method (LMM). In the LMM, the inertial force of a mass levitated using a pneumatic linear bearing is used as the reference force applied to the objects under test, such as force sensors, materials or structures. The inertial force of the levitated mass is measured using an optical interferometer. The author has modified it as calibration met...