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The objective of this work is to make a Surface Electromyography (EMG) signal detection sensor to test and analyze human motion pattern. EMG signal has a very small amplitude level and a frequency range of 20 Hz to 200 Hz. In order to realize the sensor, a circuit and its single layer PCB has been designed to amplify and filter the differential potential between Ag/AgCl electrodes at different points...
Molten salt level measurement in the process vessels of pyrochemical reprocessing of spent metallic fuels is one of the key process parameters. Level measurement of hygroscopic and high temperature salts is a challenging task. It is proposed to use an ultrasonic based level measurement. The Commercially available ultra sonic level indicators have the limitations such as their physical dimensions,...
ZnO Nanostructured thin film of thickness 200nm was deposited on quartz by spray pyrolysis technique; further interdigitated ITO electrodes were fabricated by lithography. Compositional, surface morphology and electrical characterization of ZnO nanostructure thin film was done using X-ray photo electron spectroscopy (XPS), Secondary electron microscopy (SEM), and current-voltage (I-V) measurement...
The present study describes construction of amperometric biosensor for determination of inorganic phosphate (IP) using single enzyme acid phosphatase (ACP). A blend of biopolymers agarose and guar gum was used to immobilize ACP and estimation of inorganic phosphate was carried out electrochemically using substrate L-ascorbic acid-2-phosphate. Enzyme catalyzes substrate hydrolysis and ascorbic acid...
Electrical Impedance Tomography (EIT) has its applications in several areas like medical imaging, process tomography, geophysical mapping of earth's crust and non destructive testing. Every application of EIT demands specific requirements from the instrumentation which is used to gather surface potential data from the object to be inspected. Key issues regarding design and choice of instrumentation...
This paper presents the design, simulation and fabrication of dielectrophoretic chip with integrated nickel 3D electrodes for bioparticle separation. Finite element analysis software COMSOL Multyphysics 4.3 is used to measure the electric field distribution and also the temperature profile inside the microfluidic channel. The temperature rise is found to be 0.5 K. Electric field distribution shows...
An electrochemical amperometric sensor measures the electric current on the surface of the working electrodes and estimates the concentration of chemical or biological species. Electrochemical sensor is fast and selective but electrochemical sensing is a complex phenomenon involving both physical and chemical processes. With a view to understand the basic operation of electrochemical sensor, present...
In previous research work related to the acoustic sensors, the researchers had focused on the individuality of the sensors for aeroacoustic application and sensors for audio range application. This paper describes a simple and novel model of acoustic sensor for aeroacoustic and audio applications (microphone). The model of the device presented in this paper shows interoperability. The sensor reported...
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