Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Dielectric Polarization in a Capacitor01:31

Dielectric Polarization in a Capacitor

5.1K
The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...
5.1K
Equivalent Capacitance01:19

Equivalent Capacitance

1.6K
Multiple capacitors can be connected in a circuit in series or parallel configuration. When the capacitor combination is connected to a battery, the potential drop across each capacitor and the magnitude of charge stored in the individual capacitor depends on the type of the connection. The capacitor combination is replaced by a single equivalent capacitor that stores the same amount of charge as the combination for a given potential difference.
The following strategies are adopted to calculate...
1.6K
Capillary Electrophoresis: Instrumentation01:20

Capillary Electrophoresis: Instrumentation

409
Capillary electrophoresis instrumentation typically consists of several key components. A high-voltage power supply generates the electric field necessary for the separation by connecting to an anode (the positively charged electrode) and a cathode (the negatively charged electrode) located in buffer reservoirs at each end of the capillary tube. The system includes a sample vial, a fused silica capillary tube coated with polyimide for mechanical strength through which the sample components...
409
Capacitors01:15

Capacitors

564
Capacitors play a crucial role in car radios, where they filter and store frequencies to ensure clear signal reception. Essentially serving as energy storage devices, capacitors store energy within their electric field and are composed of two parallel conducting plates separated by a dielectric.
When a voltage source is connected to a capacitor, positive and negative charges accumulate on the opposite plates. This accumulation generates a potential difference that equals the product of the...
564
Design Example: Capacitance Multiplier Circuit01:20

Design Example: Capacitance Multiplier Circuit

997
In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
997
Capacitor in an AC Circuit01:23

Capacitor in an AC Circuit

2.9K
A capacitor is charged by passing an electric current through it, which causes the plates to start accumulating an electrostatic charge. Since the strength of the charging current is maximum when the capacitor plates are uncharged and gradually decreases exponentially until the capacitor is fully charged, the charging process is neither instantaneous nor linear. The property of a capacitor to store a charge on its plates is called its capacitance.
Consider a purely capacitive circuit consisting...
2.9K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Promoting contraceptive use among unmarried female migrants in one factory in Shanghai: a pilot workplace intervention.

BMC health services research·2007
Same author

Apoptosis related protein 3, an ATRA-upregulated membrane protein arrests the cell cycle at G1/S phase by decreasing the expression of cyclin D1.

Biochemical and biophysical research communications·2007
Same author

Efficient one-pot synthesis of highly substituted pyridin-2(1H)-ones via the Vilsmeier-Haack reaction of 1-acetyl,1-carbamoyl cyclopropanes.

Organic letters·2007
Same author

Effects of Andrographitis Paniculata extracts on the expression of CD40 in endothelial cells.

Journal of Huazhong University of Science and Technology. Medical sciences = Hua zhong ke ji da xue xue bao. Yi xue Ying De wen ban = Huazhong keji daxue xuebao. Yixue Yingdewen ban·2007
Same author

Theoretical and experimental investigations on the size of alginate microspheres prepared by dropping and spraying.

Journal of microencapsulation·2007
Same author

Beneficial effects of losartan on vascular injury induced by advanced glycosylation end products and their receptors in spontaneous hypertension rats.

Molecular and cellular biochemistry·2007

Related Experiment Video

Updated: Sep 25, 2025

Scanning-probe Single-electron Capacitance Spectroscopy
10:53

Scanning-probe Single-electron Capacitance Spectroscopy

Published on: July 30, 2013

13.2K

A high voltage capacitance measurement method based on alternating coupled signal injection.

Peng He1, Yiping Liang1, Wei Qi2

  • 1University of Electronic Science and Technology of China, Chengdu 611731, China.

The Review of Scientific Instruments
|April 30, 2022
PubMed
Summary

This study introduces a new method for measuring ceramic capacitor capacitance under high direct current (DC) bias voltages up to 3 kV. The novel technique ensures accurate measurements, crucial for high-voltage pulse power applications.

More Related Videos

Methods for Cell-attached Capacitance Measurements in Mouse Adrenal Chromaffin Cell
08:24

Methods for Cell-attached Capacitance Measurements in Mouse Adrenal Chromaffin Cell

Published on: October 22, 2014

8.9K
Patch-clamp Capacitance Measurements and Ca2+ Imaging at Single Nerve Terminals in Retinal Slices
09:16

Patch-clamp Capacitance Measurements and Ca2+ Imaging at Single Nerve Terminals in Retinal Slices

Published on: January 19, 2012

18.3K

Related Experiment Videos

Last Updated: Sep 25, 2025

Scanning-probe Single-electron Capacitance Spectroscopy
10:53

Scanning-probe Single-electron Capacitance Spectroscopy

Published on: July 30, 2013

13.2K
Methods for Cell-attached Capacitance Measurements in Mouse Adrenal Chromaffin Cell
08:24

Methods for Cell-attached Capacitance Measurements in Mouse Adrenal Chromaffin Cell

Published on: October 22, 2014

8.9K
Patch-clamp Capacitance Measurements and Ca2+ Imaging at Single Nerve Terminals in Retinal Slices
09:16

Patch-clamp Capacitance Measurements and Ca2+ Imaging at Single Nerve Terminals in Retinal Slices

Published on: January 19, 2012

18.3K

Area of Science:

  • Electrical Engineering and Applied Physics
  • Materials Science and Engineering

Background:

  • Ceramic capacitors are essential components in high-voltage pulse power systems, including generators, trigger circuits, and laser systems.
  • Capacitance in ceramic capacitors is significantly influenced by direct current (DC) bias voltage.
  • Existing capacitance measurement techniques are limited to DC bias levels of 1 kV, insufficient for high-voltage applications.

Purpose of the Study:

  • To develop and validate a novel capacitance measurement method capable of operating accurately under a 3 kV DC bias.
  • To address the limitations of current methods in high-voltage environments.
  • To enable precise quantification of capacitance hysteresis deviation during voltage cycling.

Main Methods:

  • A new capacitance measurement technique was proposed, designed to decouple high DC bias voltage from high-frequency alternating small signals.
  • The method incorporates low-voltage calibration and high-voltage isolation.
  • Experimental validation was performed under a 3 kV DC bias.

Main Results:

  • The proposed method achieved accurate capacitance measurements under a 3 kV DC bias.
  • Experimental results demonstrated a relative error within ±1%.
  • The method allows for the precise quantification of capacitance hysteresis deviation.

Conclusions:

  • The developed capacitance measurement method effectively overcomes the limitations of existing techniques in high-voltage environments.
  • Accurate capacitance measurement under high DC bias is now feasible, enabling better characterization of ceramic capacitors.
  • This advancement is critical for optimizing the performance and reliability of high-voltage pulse power systems.