Sensors | Free Full-Text | A Capacitive Particle-Analyzing Smoke Detector for Very Early Fire Detection …
Smoke detectors face the challenges of increasing accuracy, sensitivity, and high reliability in complex use environments to ensure the timeliness, accuracy, and reliability of very early fire detection. The improvement in and innovation of the principle and algorithm of smoke particle concentration detection provide an opportunity for the …
Detection System for Capacitive Plantar Pressure Monitoring
This study presents a detection system with a prototype acquisition module and display interface for capacitive plantar pressure monitoring. The detection system mainly focuses on a systemlevel design (not a system on chip). The prototype acquisition module consists of commercial ICs and self-designed chips: A capacitance-to …
7+ Methods on How to Test a Capacitor With a Multimeter
Testing capacitors with a multimeter is a fundamental skill in electronics maintenance and repair. Capacitors, vital components in electronic circuits, store and release electrical energy. However, like any electronic component, they can degrade over time or become faulty due to various factors such as age, heat, or overvoltage. In this …
A Novel Capacitive Detection Scheme With Inherent Self-Calibration
This paper reports a novel capacitive detection method, called the sideband-ratio (SBR) detection, which is robust to variations of such critical parameters as the nominal capacitance, frequency, and amplitude of the probing voltage and gain of the transimpedance amplifier. The approach constructively utilizes the inherent nonlinearity of …
An automatic detection system for film capacitor based on DCS …
In this paper, an automatic pipeline system is proposed to detect the exterior defects of film capacitors. The industrial personal computer (IPC) and micro-controller unit (MCU) are used in the pipeline as the main controllers. And the distributed control system (DCS) theory is applied to build the platform. Specifically, the proposed automatic detection system …
Electrolytic capacitor surface defect detection based on deep …
The existing methods for detecting surface defects in electrolytic capacitors are typically based on conventional machine vision, with limited feature …
Capacitor Aging Detection for the DC Filters in the Power …
fault detection and localization for the capacitor aging faults in the DC filters of the power converters at different supplying and loading conditions as well as normal and fault situations. II ...
Fault detection during power swing in thyristor-controlled series capacitor-compensated transmission lines …
Despite the fact that TCSC operates mainly in the capacitive mode, during the fault conditions, ... If a TCSC is used instead of a series capacitor, fault detection will be even more challenging. In TCSC-based compensated lines, due …
Capacitive Sensing Technology
These features make capacitive humidity sensors viable for many specific operating conditions and ideally suitable for a system where uncertainty of unaccounted conditions exists during operations. There are many types of capacitive humidity sensors, which are mainly formed with aluminium, tantalum, silicon, and polymer types [ 10 ].
Neuro-Inspired HTM-Based Online Capacitor Aging Detection of DC-Link Capacitors …
Understanding the aging mechanisms of electronic components in critical in power electronic converters. Capacitors are crucial components to monitor as they contribute to approximately 30% of electronic component failures in power electronic converters. The paper introduces a novel approach that utilizes a neuro-inspired Hierarchical Temporal …
Electrolytic capacitor surface defect detection based on deep …
Semantic Scholar extracted view of "Electrolytic capacitor surface defect detection based on deep convolution neural network" by Haijian Wang et al. DOI: 10.1016/j.jksuci.2024.101935 Corpus ID: 267057193 Electrolytic capacitor surface defect detection based on
Applied Sciences | Free Full-Text | Enhanced YOLOv8 with BiFPN-SimAM for Precise Defect Detection in Miniature Capacitors …
In the domain of automatic visual inspection for miniature capacitor quality control, the task of accurately detecting defects presents a formidable challenge. This challenge stems primarily from the small size and limited sample availability of defective micro-capacitors, which leads to issues such as reduced detection accuracy and …
Detecting Failed Capacitors, Unveiling the Secrets (Capacitance, …
Failure of these capacitors is relatively easy to detect because they mostly get shorted to the ground (they are mostly used for decoupling of the supply rails near chips) or show very low resistance, therefore a failed MLC capacitor draws a …
Capacitor bank protection design consideration white paper
unit to melt under fault conditions. Because each element is protected with a fuse inside the capacitor unit, the I2R loss is much higher (e.g. 50% higher) compared to unfused unit construction. Modern-day capacitors exhibit relatively low losses overall, and with
An Overview of Condition Monitoring Techniques for Capacitors …
Summarizes the main capacitor parameters estimation principles and derives the various possible CM methods in a step-by-step manner. Discussion and comparison of the …
A Data-Driven Condition Monitoring Method for Capacitor in …
This paper proposes a data-driven method to estimate capacitance and ESR at the same time, in which particle swarm optimization (PSO) is leveraged to update the obtained …
How to Test a Capacitor with a Multimeter [5 Easy Methods]
If you want to learn how to test a capacitor with a multimeter, Follow this step-by-step guide to check and test for troubleshooting. Warning: A capacitor may build up a dangerous residual charge. Before touching it or taking a measurement, Please ensure that
Online capacitor early ageing monitoring and …
An online ageing monitoring technique was proposed for early ageing detection of electrolyte capacitors in DC–DC converters. The slope of the inductor current as a criterion for the detection is measured …
Condition Monitoring and Control of MMCs Under Capacitor Faults
This chapter deals with recent advancements in capacitor monitoring method and corresponding fault-tolerant controls in the modular multilevel converter …
Failure Modes and Conditional Monitoring Techniques for …
Introduction. I. Background and Motivation II. Failure Mechanisms in DC Link Capacitors III. Conditional Monitoring Techniques for Capacitors IV.Electromagnetic Spectral based …
An online detection method for capacitor voltage transformer with …
The CVD is composed of hundreds of capacitors in series, which can be equivalent to a high voltage capacitor C H and a medium voltage capacitor C M according to the position of the capacitor. While the CVD makes the CVT economical, the introduction of the CVD deteriorates the stability of the ME.
Capacitive Proximity Sensors Explained
Figure 2.1: Capacitive proximity sensor - Definition Capacitive Proximity Sensor Components Capacitive sensors are all about four key components: the body (like its little house), the face that does the sensing (we''ll call it the …
How to Test a Capacitor With a Multimeter
How to Test a Capacitor With a Multimeter
Failure Analysis of Capacitors and Inductors
Failure Analysis of Capacitors and Inductors
An Active Split-Phase Control Technique for Hybrid Switched-Capacitor Converters Using Capacitor Voltage Discontinuity Detection
Hybrid switched-capacitor (SC) converters have gained popularity due to their efficient switch utilization and use of energy-dense capacitors, which allows them to achieve high efficiency and power density even at large conversion ratios. The Dickson converter is one such popular hybrid SC converter, as it can achieve the theoretical minimum switch …
