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

Magnetic Field Due to Two Straight Wires

Magnetic Field Due to Two Straight Wires

Consider two parallel straight wires carrying a current of 10 A and 20 A in the same direction and separated by a distance of 20 cm. Calculate the magnetic field at a point "P2", midway between the wires. Also, evaluate the magnetic field when the direction of the current is reversed in the second wire.

Magnetic Field Due To A Thin Straight Wire

Magnetic Field Due To A Thin Straight Wire

Consider an infinitely long straight wire carrying a current I. The magnetic field at point P at a distance a from the origin can be calculated using the Biot-Savart law.

You might also read

Related Articles

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

Sort by

Same author

Late Holocene transition from natural to anthropogenic forcing of fire regime in Arid Central Asia.

The Science of the total environment·2025

Same author

Antiplatelet-anticoagulant, APAC, a mimic of endogenous heparin, is an antithrombotic with von Willebrand factor-mediated characteristics.

Thrombosis research·2025

Same author

Past 200 kyr hydroclimate variability in the western Mediterranean and its connection to the African Humid Periods.

Scientific reports·2022

Same author

Norway spruce postglacial recolonization of Fennoscandia.

Nature communications·2022

Same author

Electrical Low-Frequency 1/<i>f</i><sup>γ</sup> Noise Due to Surface Diffusion of Scatterers on an Ultra-low-Noise Graphene Platform.

Nano letters·2021

Same author

Publisher Correction: A global database of Holocene paleotemperature records.

Scientific data·2020

Search research articles

Related Experiment Video

Updated: Jun 14, 2026

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy

Published on: April 8, 2018

Wireless ferroelectric resonating sensor.

Ville Viikari¹, Heikki Seppa, Tomi Mattila

¹VTT Technical Research Centre, Espoo, Finland. ville.viikari@vtt.fi

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

|April 10, 2010

Summary

This study introduces a novel passive wireless sensor utilizing a ferroelectric varactor. The sensor transmits data at an intermodulation frequency when excited by two specific frequencies, enabling wireless sensing applications.

More Related Videos

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Published on: January 29, 2013

Fabrication and Characterization of High-Q Silicon Nitride Membrane Resonators

Fabrication and Characterization of High-Q Silicon Nitride Membrane Resonators

Published on: August 8, 2025

Related Experiment Videos

Last Updated: Jun 14, 2026

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy

Published on: April 8, 2018

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Published on: January 29, 2013

Fabrication and Characterization of High-Q Silicon Nitride Membrane Resonators

Fabrication and Characterization of High-Q Silicon Nitride Membrane Resonators

Published on: August 8, 2025

Area of Science:

Electrical Engineering
Materials Science
Sensor Technology

Background:

Passive wireless sensors offer advantages in remote monitoring and reduced maintenance.
Ferroelectric varactors exhibit tunable capacitance, making them suitable for resonant circuit applications.
Intermodulation in resonant circuits can be exploited for signal generation and data encoding.

Purpose of the Study:

To present a novel passive wireless resonating sensor design.
To theoretically model and experimentally validate the sensor's response mechanism.
To demonstrate the sensor's capability as a temperature-sensing device.

Main Methods:

Development of a passive wireless sensor incorporating a ferroelectric varactor.
Derivation of a theoretical equation describing the sensor's intermodulation frequency response.
Validation of the theoretical model through electromagnetic simulations.
Fabrication and testing of a prototype temperature sensor.

Main Results:

The sensor successfully generates a response at an intermodulation frequency when illuminated by two closely spaced frequencies.
Theoretical predictions for the sensor's response were confirmed by simulation results.
The ferroelectric varactor-based sensor demonstrated effective temperature sensing capabilities.

Conclusions:

The proposed passive wireless resonating sensor based on a ferroelectric varactor is a viable technology.
The derived theoretical framework accurately predicts the sensor's behavior.
This technology holds promise for various wireless sensing applications, including temperature monitoring.