Related Experiment Video
Updated: Jul 12, 2025
08:36
An Atmospheric Pressure Plasma Setup to Investigate the Reactive Species Formation
Published on: November 3, 2016
10.0K
Instability and fault analysis of arc plasma using advanced signal processing methods.
Shakti Prasad Sethi1,2, Debi Prasad Das1,2, Santosh Kumar Behera1,2
1Process Engineering and Instrumentation Department, CSIR-Institute of Minerals and Material Technology, Bhubaneswar 751013, Odisha, India.
The Review of Scientific Instruments
|October 23, 2023
Summary
This study analyzes transferred arc plasma instabilities using advanced signal processing. Early detection of faults improves system reliability and efficiency in industrial applications.
Area of Science:
- Plasma Physics
- Signal Processing
- Industrial Applications
Background:
- Transferred arc plasma systems are crucial for material processing, metallurgy, and waste management.
- System instabilities and faults negatively affect performance and reliability.
- Advanced signal processing is needed to understand and mitigate these issues.
Purpose of the Study:
- To analyze instabilities and faults in transferred arc plasma.
- To develop a method for early detection of deviations and irregularities.
- To enhance the control and optimization of plasma processes.
Main Methods:
- Simultaneous recording of arc voltage, current, acoustic, optical, and spectroscopic signals.
- Application of advanced signal processing techniques: Lyapunov exponent, Fast Fourier Transform (FFT), Short-Time Fourier Transform (STFT), and Power Spectral Density (PSD).
- Multi-sensor signal analysis for identifying fault patterns.
Main Results:
- Characterization of transferred arc plasma instabilities under various experimental conditions.
- Identification of specific signal deviations indicative of fault events.
- Demonstration of multi-sensor data's utility in fault pattern recognition.
Conclusions:
- Advanced signal processing effectively identifies instabilities and faults in transferred arc plasma.
- Early fault detection enables timely corrective actions, preventing damage.
- This research contributes to improved efficiency and reliability of industrial plasma systems.
Related Concept Videos
01:19Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle
669
Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
669
01:20Atomic Emission Spectroscopy: Overview
2.3K
Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
2.3K
01:29Atomic Emission Spectroscopy: Lab
174
AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
174
01:19Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview
760
In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then...
760
01:26Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
234
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
234
01:22Atomic Emission Spectroscopy: Instrumentation
499
The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers. Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.
499