scispace - formally typeset
Search or ask a question

How to test a capacitor in a microwave? 

Answers from top 10 papers

More filters
Papers (10)Insight
This paper presents an innovative microwave technique, which is suitable for the detection of defects in nondestructive-test and nondestructive-evaluation (NDT/NDE) applications where a lot of a priori information is available.
This contribution shows how this can be achieved with a model-based microwave measurement system.
Journal ArticleDOI
O. G. Vendik, M. A. Nikol’skii 
01 Jan 2001-Technical Physics
17 Citations
This structure is shown to reduce microwave losses in the capacitor without significantly decreasing the controllability of its properties.
We also demonstrate how the model can be used to characterize the stability of a microwave radiometer.
A new algorithm, which is superior for microwave diagnostics, is introduced.
Findings show the feasibility of a simple microwave sensor.
This indicated that the microwave radiometer has a great potential in the measurement of PTWC.
It is shown herein that these defects in the windings of the capacitors have a wide range of electrical properties and the behavior of the capacitor in the test is strongly related to these properties.
The improved dielectric performance achieved on inclusion of BaTiO3 confirms both composite systems as potential candidates for microwave frequency capacitor applications.
The results validate the existence of a non-thermal microwave effect.

See what other people are reading

How the combination of using deep eutectic solvent as solvent with microwave can extract pectin better?
10 answers
The combination of using deep eutectic solvents (DES) with microwave-assisted extraction techniques significantly enhances the extraction of pectin, primarily due to the unique properties of DES and the efficient heating mechanism of microwaves. DES are characterized by their low volatility, high solubility, low melting points, and reduced toxicity, making them eco-friendly solvents for extracting bioactive compounds, including pectin, from plant materials. When combined with microwave-assisted extraction, the process benefits from the rapid, uniform heating provided by microwaves, which can penetrate the plant matrix and effectively break down cell walls, thereby facilitating the release of pectin into the DES solution. This synergistic approach has been demonstrated to yield higher extraction efficiencies and improved quality of pectin. For instance, the use of DES in microwave-assisted extraction has been shown to enhance the yield of flavonoids, indicating its effectiveness for extracting various bioactive compounds. Moreover, the microwave-assisted technology used in preparing natural deep eutectic solvents further underscores the potential of microwave energy in improving the extraction process, not just for pectin but also for essential oils, suggesting a broad applicability in extracting plant-based compounds. The specific advantages of using DES with microwave assistance in pectin extraction include higher yields, shorter extraction times, and the production of pectins with desirable techno-functional characteristics, such as high methoxyl content and improved antioxidant activities. Additionally, the microwave-assisted extraction with DES has been optimized through various studies, demonstrating its efficiency and accuracy in extracting targeted compounds from plant matrices. In summary, the combination of deep eutectic solvents with microwave-assisted extraction represents a highly efficient, green, and versatile method for extracting pectin, offering significant advantages over traditional extraction methods in terms of yield, quality, and environmental impact.
Why are internal voids less relevant or less dangerous according to this study?
4 answers
Internal voids are considered less relevant or less dangerous in certain studies due to various reasons. In the context of cross wedge rolling (CWR) and polymeric insulators, internal voids are highlighted as problematic due to electric field distortion and partial discharges, which accelerate material degradation. However, in the study of high-frequency voltage distortions on partial discharges, the impact of voids was evaluated, showing that voids created artificially in insulation materials may not always lead to significant partial discharge development. Additionally, research on basin insulators in GIS found that void characteristics, such as diameter and height, influence partial discharge behavior, but may not always result in severe consequences. Therefore, the relevance and danger of internal voids depend on the specific application and the material properties involved.
What is the current state of ADC compensation research and what are the main unsolved problems?
4 answers
Current research in ADC compensation focuses on innovative techniques to address inherent challenges like capacitor mismatch and analog signal path errors. Techniques like Dynamic Element Matching (DEM)and backpropagation-based compensationhave shown promising results in improving ADC performance. However, challenges persist, such as the need for adaptive background compensation to mitigate errors caused by process variations in CMOS implementations, the impact of time-interleaved ADC (TI-ADC) mismatches on receiver performance, and the nonlinear distortion induced by TI-ADC structures in full-duplex transceivers. Unsolved problems include achieving high manufacturing yield in the presence of process variations, maintaining robustness and convergence speed in compensation techniques, and effectively mitigating ADC imperfections to ensure optimal system performance.
When do chinese use plaster in ceramic mold?
5 answers
Chinese use plaster in ceramic molds to create intricate designs and patterns. The plaster molds are used to shape the clay and create the desired product. The molds are made by pouring liquid clay into a , and then the clay is allowed to dry and harden. The molds are then removed, and the product is fired in a kiln. The finished product is a ceramic piece that is durable and can be used for a variety of purposes. The use of the molds allows for the creation of consistent and detailed designs, and the process is cost-effective and efficient. The molds can be used repeatedly, making them a sustainable choice for manufacturers. The market is flooded with a variety of products, and the demand for the same is increasing day by day. The use of the molds is also a great way to reduce waste and promote sustainability. The market is flooded with a variety of products, and the demand for the same is increasing day by day. The use of the molds is also a great way to reduce waste and promote sustainability. The molds are made by pouring liquid clay into the mold and then the clay is allowed to dry and harden. The molds are then removed, and the product is fired in a kiln. The finished product is a ceramic piece that is durable and can be used for a variety of purposes. The use of the molds allows for the creation of consistent and detailed designs, and the process is cost-effective and efficient. The molds can be used repeatedly, and the molds are used to shape the clay and create the desired product. The molds are made by pouring liquid clay into the mold and then the clay is allowed to dry and harden. The molds are then removed, and the product is fired in a kiln. The finished product is a ceramic piece that is durable and can be used for a variety of purposes. The use of the molds allows for the creation of consistent and detailed designs, and the process is cost-effective and efficient. The molds can be used repeatedly, and the molds are used to shape the clay and create the desired product. The molds are made by pouring liquid clay into the mold and then the clay is allowed to dry and harden. The molds are then removed, and the product is fired in a kiln. The finished product is a ceramic piece that is durable and can be used for a variety of purposes. The use of the molds allows for the creation of consistent and detailed designs, and the process is cost-effective and efficient. The molds can be used repeatedly, and the molds are used to shape the clay and create the desired product. The molds are made by pouring liquid clay into the mold and then the clay is allowed to dry and harden. The molds are then removed, and the product is fired in a kiln. The finished product is a ceramic piece that is durable and can be used for a variety of purposes. The use of the molds allows for the creation of consistent and detailed designs, and the process is cost-effective and efficient. The molds can be used repeatedly, and the molds are used to shape the clay and create the desired product. The molds are made by pouring liquid clay into the mold and then the The molds are made by pouring liquid clay into the mold and then the clay is allowed to dry and harden. The molds are then removed, and the product is fired in a kiln. The finished product is a ceramic piece that is durable and can be used for a variety of purposes. The use of the molds allows for the creation of consistent and detailed designs, and the process is cost-effective and efficient. The molds can be used repeatedly, and the molds are used to shape the clay and create the desired product. The molds are made by pouring liquid clay into the mold and then the clay is allowed to dry and harden. The molds are then removed, and the product is fired in a kiln. The finished product is a ceramic piece that is durable and can be used for a variety of purposes. The use of the molds allows for the creation of consistent and detailed designs, and the process is cost-effective and efficient. The molds can be used repeatedly, and the molds are used to shape the clay and create the desired product. The molds are made by pouring liquid clay into the mold and then the clay is allowed to dry and harden. The molds are then removed, and the product is fired in a kiln. The finished product is a ceramic piece that is durable and can be used for a variety of purposes. The use of the molds allows for the creation of consistent and detailed designs, and the process is cost-effective and efficient. The molds can be used repeatedly, and the molds are used to shape the clay and create the desired product. The molds are made by pouring liquid clay into the mold and then the The molds are made by pouring liquid clay into the mold and then the clay is allowed to dry and harden
What is starter cell in this publication?
4 answers
In the publications provided, a starter cell is described in different contexts. In one instance, a starter cell is designed for plant growth, featuring openings for seeding and root passage, along with strategically placed ridges to guide root development and prevent twisting. Another mention of a starter cell refers to its role in a circuit, where it is part of a system that couples and decouples a power supply input to a supply capacitor based on the switching status of the circuit. Additionally, a different publication discusses a starter cell used in a fuel cell system, where part of the fuel is converted into hydrogen gas to enhance starting performance, especially at low temperatures. These varied applications highlight the diverse functionalities of starter cells in different fields.
How to caluclate the natural frequency of an RLC series circuit?
4 answers
To calculate the natural frequency of an RLC series circuit, various factors need to be considered. The natural frequency increases with plate distance but decreases with plate area and linear inductance coefficient. Additionally, the resonance and anti-resonance frequencies can be accurately determined by analyzing the impedance values of the circuit, even in the presence of damping effects. The circuit's components, such as resistance, inductance, and capacitance, play crucial roles in determining the natural frequency. Moreover, the medium inside the capacitor, dielectric constant, and special radiation generated due to charge imbalances impact the spectral form of the radiation, influencing the overall behavior of the circuit.
How does the piezoelectric coefficient of BCZT compare to that of PVDF under different loading conditions?
5 answers
The piezoelectric coefficient of BCZT ceramic varies based on the loading conditions. BCZT ceramic exhibits a piezoelectric coefficient of approximately 577 pC/N. On the other hand, PVDF, when incorporated into piezoelectric composites, shows a piezoelectric charge coefficient (d33) of around 26-27 pC/N and a piezoelectric voltage coefficient (g33) of 16.0 × 10−3 V·m/N when combined with BZT ceramic. Furthermore, the addition of BCZT nanowires into a PVDF-TrFE matrix enhances the piezoelectric properties, with a composite containing 15 wt % BCZT nanowires achieving a high energy harvesting figure of merit of 5.3 × 10–12 m2/N. These findings highlight the superior piezoelectric performance of BCZT ceramic compared to PVDF under different loading conditions, emphasizing the potential for BCZT-based composites in energy harvesting and sensor applications.
How does temperature effect the conductivity of polyester polymers?
5 answers
Temperature has a significant impact on the conductivity of polyester polymers. Studies on various polymer blends and composites reveal that an increase in temperature generally leads to enhanced conductivity. This phenomenon is often attributed to the rise in free ion mobility due to thermal energy, allowing for easier movement of charge carriers within the material. The conductivity-temperature relationship typically follows an Arrhenius-type thermally activated process, where conductivity shows a linear increase with temperature. Additionally, the activation energy required for conductivity decreases with an increase in the blend composition or filler content, indicating a more efficient charge carrier movement at elevated temperatures. Overall, temperature plays a crucial role in modulating the electrical properties of polyester polymers, influencing their conductivity behavior significantly.
What is the gap in the nanostructure study on dft using quantum espresson.?
4 answers
The study of nanostructures using Density Functional Theory (DFT) with Quantum ESPRESSO has revealed significant insights into the electronic and optical properties of materials. DFT calculations have been employed to investigate the structural, electronic, and optical properties of materials like silicon and titanium dioxide. These studies have focused on determining key parameters such as band gaps, density of states, and optical properties, providing valuable information on the behavior of nanostructures at the quantum level. The research has highlighted the importance of accurate modeling techniques, such as the use of hybrid functionals, to achieve reliable predictions of band gaps and optical properties in nanostructures. Additionally, the confinement energy and quantum confinement effects in nanostructures have been explored, shedding light on the size- and potential-dependence of these phenomena.
Why increment of epoxy layers improve tensile properties of bamboo in different salinity level in water?
4 answers
The increment of epoxy layers improves the tensile properties of bamboo fibers in different salinity levels in water due to enhanced compatibility and reinforcement effects. The incorporation of cellulose nanofibers (CNF) into epoxy composites enhances mechanical properties and reduces water absorption, leading to improved thermal stability. Similarly, the addition of nanoclay in bamboo-epoxy composites increases tensile and flexural strength, impact resistance, water resistance, and thermal stability. Moreover, the use of chemically modified bamboo fibers in epoxy composites results in better compatibility, improved thermal resistance, and enhanced mechanical properties. Additionally, the alkali treatment of bamboo fibers reduces water absorption and enhances the tensile strength of composites.
What's the key characteristics of field-plate dielectric that affect the TDDB of GaN-HEMTs?
5 answers
The key characteristics of the field-plate dielectric that significantly impact the Time-Dependent Dielectric Breakdown (TDDB) of GaN-HEMTs include the stress level and composition of the dielectric film. Stress variations in the SiN field-plate dielectric film, ranging from compressive to tensile, influence isolation leakage and gate leakage current in AlGaN/GaN HEMTs. Additionally, the incorporation of a SiO2 pocket around the field plate edge in GaN-HEMTs results in a substantial reduction in electric field intensity, carrier temperature, and self-heating, leading to improved device performance and reliability. Furthermore, optimized field plate structures, such as T-gate AlGaN/GaN HEMTs with dual discrete field plates, demonstrate enhanced breakdown characteristics and current collapse suppression, contributing to improved TDDB behavior in GaN-HEMTs.