SQUID Magnetic Sensor and its Application (Sensor)

A magnetic current sensor with SQUID readout

A cryogenic magnetic current sensor has been constructed and tested for operation and sensitivity in the ac regime. The sensor is based on a ferromagnetic-core current transformer, coupled to a superconducting-quantum-interferencedevice (SQUID) current detector. The SQUID electronics provides a voltage output that can be coupled to room temperature signal recovery electronics, such as a lock-in...

Sonochemical-Assisted Synthesis of Copper Oxide Nanoparticles and Its Application as Humidity Sensor

Cupric oxide nanostructures were synthesized via a simple reaction between copper nitrate and sodium hydroxide using a sonochemical-assisted method. The synthesized CuO was then characterized using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared, ultraviolet-visible and photoluminescence spectroscopy. Our studies show that the CuO na...

Electrochemical production of Graphene Oxide and its application as a novel Hydrogen Peroxide sensor

Herein, graphene oxide is produced by electrochemical oxidation method from graphite rod to examine its hydrogen peroxide sensing ability. The electrochemically produced graphene oxide is characterized by SEM and XRD. A few layers of Graphene Oxide(GO) sheets and corrugations in graphene sheets appeared intensely crumpled and folded into a typical wrinkled structure after electrochemical oxidat...

Ubiquitous Sensor Networks and Its Application

Dc - Squid Sensor System for Multichannel Neuromagnetometry

Various DC-SQUID sensor configurations were developed for use in our 19-channel neuromagnetometer. Apart from the standard type, resistively and inductively shunted SQUIDs were made, allowing for a large screening factor p (>l). In this way signal coupling from the pick-up coil to the SQUID is facilitated and capacitive coupling between the input coil and the SQUID washer can be decreased. The ...