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

Design Example: Capacitance Multiplier Circuit01:20

Design Example: Capacitance Multiplier Circuit

1.5K
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.
1.5K
Capacitors and Capacitance01:18

Capacitors and Capacitance

9.1K
A device consisting of two electrical conductors that are separated by a distance and used to store electrical charges is called a capacitor. The space between the conductors is either a vacuum or an insulating material, called a dielectric. Capacitors have many applications, ranging from filtering static from radio reception to energy storage in heart defibrillators.
When the conductors are two identical parallel plates, it is called a parallel plate capacitor. When battery terminals are...
9.1K
Equivalent Capacitance01:19

Equivalent Capacitance

2.1K
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...
2.1K
Equivalent Capacitance01:19

Equivalent Capacitance

679
From the study of resistive circuits, it is understood that employing a series-parallel combination serves as an effective strategy for simplifying circuits. Capacitors can be arranged within a circuit in one of two ways: a series configuration or a parallel configuration. The way these capacitors are connected to a battery will influence both the potential drop across each individual capacitor and the size of the charge that each capacitor can store. This is determined by the specific type of...
679
Capacitance: Single-Phase And Three-Phase Line01:25

Capacitance: Single-Phase And Three-Phase Line

583
In electrical power systems, understanding the capacitance of transmission lines is fundamental for efficient operation.
Single-Phase Lines
Consider a single-phase, two-wire transmission line with equal phase spacing energized by a voltage source. One conductor carries a uniform positive charge, while the other carries an equal negative charge. The capacitance C of the line can be derived from the voltage V between the conductors. For a one-meter section of the line, the capacitance is given...
583
Three-Phase Short Circuit—Unloaded Synchronous Machine01:21

Three-Phase Short Circuit—Unloaded Synchronous Machine

679
Conducting a three-phase short circuit test on an unloaded synchronous machine helps understand its impact on the system. The AC fault current's oscillogram, with the DC offset removed, reveals that the waveform amplitude decreases from an initially high value to a steady-state level for one phase of the machine.
This behavior occurs due to the magnetic flux produced by the short-circuit armature currents. Initially, these currents follow high-reluctance paths but eventually shift to...
679

You might also read

Related Articles

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

Sort by
Same author

Research on the Localization Method of Outdoor Ground Vibration Signals Based on MEMS Accelerometers.

Sensors (Basel, Switzerland)·2025
Same author

Flexible Wearable Heart Rate Monitoring System and Low-Power Design: A Review.

Sensors (Basel, Switzerland)·2025
Same author

X-ray-to-visible light-field detection through pixelated colour conversion.

Nature·2023
Same author

A swallowable X-ray dosimeter for the real-time monitoring of radiotherapy.

Nature biomedical engineering·2023
Same author

A Digital-Analog Hybrid System-on-Chip for Capacitive Sensor Measurement and Control.

Sensors (Basel, Switzerland)·2021
Same author

EDSSA: An Encoder-Decoder Semantic Segmentation Networks Accelerator on OpenCL-Based FPGA Platform.

Sensors (Basel, Switzerland)·2020
Same journal

RETRACTED: Zhang et al. A Novel Framework for Reconstruction and Imaging of Target Scattering Centers via Wide-Angle Incidence in Radar Networks. <i>Sensors</i> 2025, <i>25</i>, 6802.

Sensors (Basel, Switzerland)·2026
Same journal

Enhancing Unsupervised Multi-Source Domain Adaptation for Person Re-Identification via Mixture of Experts and Graph-Based Relation.

Sensors (Basel, Switzerland)·2026
Same journal

Development of an Instrumented Glove for Palmar Pressure Assessment in Kayakers.

Sensors (Basel, Switzerland)·2026
Same journal

Development and Experimental Validation of an Autonomous IoT-Based Monitoring System for Real-Time Water Quality Assessment in the Amazon River.

Sensors (Basel, Switzerland)·2026
Same journal

Semi-Supervised Adversarial Learning Framework for Controller Area Network Bus Intrusion Detection.

Sensors (Basel, Switzerland)·2026
Same journal

Smart Optimization Method for Safety Signs in Innovative Manufacturing Environments Integrating Industrial Field IoT Sensors and Knowledge Graphs.

Sensors (Basel, Switzerland)·2026
See all related articles

Related Experiment Video

Updated: Jan 22, 2026

Methods for Patch Clamp Capacitance Recordings from the Calyx
14:58

Methods for Patch Clamp Capacitance Recordings from the Calyx

Published on: July 29, 2007

13.2K

An Analog Interface Circuit for Capacitive Angle Encoder Based on a Capacitance Elimination Array and Synchronous

Bo Hou1, Bin Zhou2, Xiang Li1

  • 1Engineering Research Center for Navigation Technology, Department of Precision Instrument, Tsinghua University, Beijing 100084, China.

Sensors (Basel, Switzerland)
|July 18, 2019
PubMed
Summary
This summary is machine-generated.

This study introduces an analog interface application-specific integrated circuit (ASIC) for capacitive angle encoders. The novel design achieves high resolution and accuracy for control machine systems with low power consumption.

Keywords:
angle encoderapplication-specific integrated circuitcapacitance elimination arrayswitch synchronous demodulation method

More Related Videos

Scanning-probe Single-electron Capacitance Spectroscopy
10:53

Scanning-probe Single-electron Capacitance Spectroscopy

Published on: July 30, 2013

13.4K
Ultrasensitive Detection of Biomarkers by Using a Molecular Imprinting Based Capacitive Biosensor
08:22

Ultrasensitive Detection of Biomarkers by Using a Molecular Imprinting Based Capacitive Biosensor

Published on: February 16, 2018

12.6K

Related Experiment Videos

Last Updated: Jan 22, 2026

Methods for Patch Clamp Capacitance Recordings from the Calyx
14:58

Methods for Patch Clamp Capacitance Recordings from the Calyx

Published on: July 29, 2007

13.2K
Scanning-probe Single-electron Capacitance Spectroscopy
10:53

Scanning-probe Single-electron Capacitance Spectroscopy

Published on: July 30, 2013

13.4K
Ultrasensitive Detection of Biomarkers by Using a Molecular Imprinting Based Capacitive Biosensor
08:22

Ultrasensitive Detection of Biomarkers by Using a Molecular Imprinting Based Capacitive Biosensor

Published on: February 16, 2018

12.6K

Area of Science:

  • Electrical Engineering
  • Integrated Circuit Design
  • Sensor Technology

Background:

  • Capacitive angle encoders are crucial for control machine systems.
  • Existing encoders face challenges in miniaturization, power consumption, and integration.
  • Analog readout circuits require efficient capacitance-to-voltage conversion and signal demodulation.

Purpose of the Study:

  • To design and fabricate an analog interface ASIC for capacitive angle encoders.
  • To achieve miniaturization, low power consumption, and easy integration.
  • To improve the performance of capacitive angle encoders in control machine systems.

Main Methods:

  • Designed a DC capacitance elimination array for high capacitance-to-voltage conversion ratio at low supply voltage.
  • Developed a switch synchronous demodulation module to remove carrier signals and reduce ADC sampling rate.
  • Fabricated the ASIC using standard 0.18 µm CMOS technology and integrated it with a sensitive structure.

Main Results:

  • The capacitive angle encoder achieved a resolution of 0.01°.
  • The system demonstrated a power consumption of 20 mW.
  • Accuracy over the full absolute range was measured to be 0.1°.

Conclusions:

  • The proposed analog interface ASIC significantly enhances capacitive angle encoder performance.
  • The design shows great potential for applications in control machine systems.
  • Miniaturization, low power, and high accuracy are key advantages of the developed integrated circuit.