Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Instrumentation Amplifier

Instrumentation Amplifier

An electrocardiography (ECG) machine is an essential piece of medical equipment used to monitor the electrical activity of the heart. It operates by detecting small electrical changes on the skin that result from the depolarization of the heart muscle during each heartbeat. However, these signals are in the microvolt range and can be easily overwhelmed by noise or interference.
To overcome this challenge, an ECG machine utilizes an instrumentation amplifier. This specialized amplifier is...

Biasing of FET

Biasing of FET

Biasing a Junction Field Effect Transistor (JFET) is crucial for setting operational parameters and ensuring efficient functioning in electronic circuits. JFETs are characterized by using a single carrier type in N-channel or P-channel configurations, where the channel is surrounded by PN junctions. These junctions are central to the device's ability to control current flow.
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the gate...

You might also read

Related Articles

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

Sort by

Same author

Low-potential detection of endogenous and physiological uric acid at uricase-thionine-single-walled carbon nanotube modified electrodes.

Analytical chemistry·2010

Same author

Modelling and spatial discrimination of small mammal assemblages: an example from western Sichuan (China).

Ecological modelling·2010

Same author

Nutritional status alters saccharin intake and sweet receptor mRNA expression in rat taste buds.

Brain research·2010

Same author

Involvement of mitochondria-mediated apoptosis in ethylbenzene-induced renal toxicity in rat.

Toxicological sciences : an official journal of the Society of Toxicology·2010

Same author

Clinical significance of miR-221 and its inverse correlation with p27Kip¹ in hepatocellular carcinoma.

Molecular biology reports·2010

Same author

Cruciate ligament reconstruction using LARS artificial ligament under arthroscopy: 81 cases report.

Chinese medical journal·2010

Search research articles

Related Experiment Video

Updated: Jul 4, 2026

Electric and Magnetic Field Devices for Stimulation of Biological Tissues

Electric and Magnetic Field Devices for Stimulation of Biological Tissues

Published on: May 15, 2021

[Design and simulation of interference current therapeutic instruments based on FPGA].

Qian Wang¹, Zhe-Min Duan, De-Ming Mao

¹School of Electronic Information, Northwestern Polytechnical University, Xi'an.

Zhongguo Yi Liao Qi Xie Za Zhi = Chinese Journal of Medical Instrumentation

|June 28, 2008

Summary

This study presents a new interference current therapeutic instrument using Digital Direct Frequency Synthesis (DDFS) theory and a Look-Up-Table method. The validated design generates two distinct interference currents for potential therapeutic applications.

Related Experiment Videos

Last Updated: Jul 4, 2026

Electric and Magnetic Field Devices for Stimulation of Biological Tissues

Electric and Magnetic Field Devices for Stimulation of Biological Tissues

Published on: May 15, 2021

Area of Science:

Biomedical Engineering
Electrical Engineering

Context:

Interference current therapy requires precise control over generated currents.
Existing methods may lack flexibility in frequency generation.

Purpose:

To design and simulate a novel interference current therapeutic instrument.
To implement automatic frequency scanning and dual Digital Direct Frequency Synthesis (DDFS) modules.

Summary:

The instrument utilizes DDFS theory and a Look-Up-Table method for generating two distinct interference currents.
The design incorporates an automatic frequency scanning module for enhanced control.
Simulations using Quartus II validated the correctness and feasibility of the design.

Impact:

Provides a feasible and correct design for an interference current therapeutic instrument.
Demonstrates the potential for advanced applications in therapeutic current generation.