* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Tuesday, August 5, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    ‘Billie Jean’ – Hyde Park Herald

    The Enduring Magic Behind ‘Billie Jean’ Revealed

    Hank Hill returns to a changed world in new ‘King of the Hill’ episodes – New Haven Register

    Hank Hill Navigates a Bold New World in Thrilling New ‘King of the Hill’ Episodes

    Exclusive | Fox Takes Stake in IndyCar Owner Penske Entertainment – The Wall Street Journal

    Exclusive | Fox Takes Stake in IndyCar Owner Penske Entertainment – The Wall Street Journal

    Go-to entertainment: why gaming was made for the toilet – The Guardian

    Why Gaming Is the Ultimate Way to Pass Time in the Bathroom

    Chicago Youth Symphony Orchestra takes the Lollapalooza stage – Yahoo Home

    Chicago Youth Symphony Orchestra takes the Lollapalooza stage – Yahoo Home

    Sens. Blackburn, Warnock introduce CREATE Act to provide tax relief to music creators – Yahoo Home

    Sens. Blackburn and Warnock Launch CREATE Act to Deliver Tax Relief for Music Creators

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Nasdaq-listed Verb Technology to build $558 million TON treasury, rebrand as TON Strategy Co. – The Block

    Nasdaq-Listed Verb Technology to Build $558 Million TON Treasury and Rebrand as TON Strategy Co

    How Tech Firms Like Google and Meta Are Embracing the Military – The New York Times

    How Tech Firms Like Google and Meta Are Embracing the Military – The New York Times

    Credo Technology: Wiring The AI Revolution (NASDAQ:CRDO) – Seeking Alpha

    Credo Technology: Driving the Next Wave of AI Innovation

    Microsoft Seeks to Extend Access to OpenAI Technology – PYMNTS.com

    Microsoft Aims to Broaden Access to OpenAI Technology

    Livonia police use grappler technology to stop drunk driver – ClickOnDetroit | WDIV Local 4

    Livonia Police Deploy Grappler Technology to Safely Stop Drunk Driver

    Emory orthopaedic surgeons use robotic technology to transform knee replacement surgery – Emory News Center

    How Robotic Technology is Revolutionizing Knee Replacement Surgery

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    ‘Billie Jean’ – Hyde Park Herald

    The Enduring Magic Behind ‘Billie Jean’ Revealed

    Hank Hill returns to a changed world in new ‘King of the Hill’ episodes – New Haven Register

    Hank Hill Navigates a Bold New World in Thrilling New ‘King of the Hill’ Episodes

    Exclusive | Fox Takes Stake in IndyCar Owner Penske Entertainment – The Wall Street Journal

    Exclusive | Fox Takes Stake in IndyCar Owner Penske Entertainment – The Wall Street Journal

    Go-to entertainment: why gaming was made for the toilet – The Guardian

    Why Gaming Is the Ultimate Way to Pass Time in the Bathroom

    Chicago Youth Symphony Orchestra takes the Lollapalooza stage – Yahoo Home

    Chicago Youth Symphony Orchestra takes the Lollapalooza stage – Yahoo Home

    Sens. Blackburn, Warnock introduce CREATE Act to provide tax relief to music creators – Yahoo Home

    Sens. Blackburn and Warnock Launch CREATE Act to Deliver Tax Relief for Music Creators

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Nasdaq-listed Verb Technology to build $558 million TON treasury, rebrand as TON Strategy Co. – The Block

    Nasdaq-Listed Verb Technology to Build $558 Million TON Treasury and Rebrand as TON Strategy Co

    How Tech Firms Like Google and Meta Are Embracing the Military – The New York Times

    How Tech Firms Like Google and Meta Are Embracing the Military – The New York Times

    Credo Technology: Wiring The AI Revolution (NASDAQ:CRDO) – Seeking Alpha

    Credo Technology: Driving the Next Wave of AI Innovation

    Microsoft Seeks to Extend Access to OpenAI Technology – PYMNTS.com

    Microsoft Aims to Broaden Access to OpenAI Technology

    Livonia police use grappler technology to stop drunk driver – ClickOnDetroit | WDIV Local 4

    Livonia Police Deploy Grappler Technology to Safely Stop Drunk Driver

    Emory orthopaedic surgeons use robotic technology to transform knee replacement surgery – Emory News Center

    How Robotic Technology is Revolutionizing Knee Replacement Surgery

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

Self-powered sensor automatically harvests magnetic energy

January 19, 2024
in Science
Self-powered sensor automatically harvests magnetic energy
Share on FacebookShare on Twitter

MIT researchers have developed a battery-free, self-powered sensor that can harvest energy from its environment.

Because it requires no battery that must be recharged or replaced, and because it requires no special wiring, such a sensor could be embedded in a hard-to-reach place, like inside the inner workings of a ship’s engine. There, it could automatically gather data on the machine’s power consumption and operations for long periods of time.

The researchers built a temperature-sensing device that harvests energy from the magnetic field generated in the open air around a wire. One could simply clip the sensor around a wire that carries electricity — perhaps the wire that powers a motor — and it will automatically harvest and store energy which it uses to monitor the motor’s temperature.

“This is ambient power — energy that I don’t have to make a specific, soldered connection to get. And that makes this sensor very easy to install,” says Steve Leeb, the Emanuel E. Landsman Professor of Electrical Engineering and Computer Science (EECS) and professor of mechanical engineering, a member of the Research Laboratory of Electronics, and senior author of a paper on the energy-harvesting sensor.

In the paper, which appeared as the featured article in the January issue of the IEEE Sensors Journal, the researchers offer a design guide for an energy-harvesting sensor that lets an engineer balance the available energy in the environment with their sensing needs.

The paper lays out a roadmap for the key components of a device that can sense and control the flow of energy continually during operation.

The versatile design framework is not limited to sensors that harvest magnetic field energy, and can be applied to those that use other power sources, like vibrations or sunlight. It could be used to build networks of sensors for factories, warehouses, and commercial spaces that cost less to install and maintain.

“We have provided an example of a battery-less sensor that does something useful, and shown that it is a practically realizable solution. Now others will hopefully use our framework to get the ball rolling to design their own sensors,” says lead author Daniel Monagle, an EECS graduate student.

Monagle and Leeb are joined on the paper by EECS graduate student Eric Ponce.

A how-to guide

The researchers had to meet three key challenges to develop an effective, battery-free, energy-harvesting sensor.

First, the system must be able to cold start, meaning it can fire up its electronics with no initial voltage. They accomplished this with a network of integrated circuits and transistors that allow the system to store energy until it reaches a certain threshold. The system will only turn on once it has stored enough power to fully operate.

Second, the system must store and convert the energy it harvests efficiently, and without a battery. While the researchers could have included a battery, that would add extra complexities to the system and could pose a fire risk.

“You might not even have the luxury of sending out a technician to replace a battery. Instead, our system is maintenance-free. It harvests energy and operates itself,” Monagle adds.

To avoid using a battery, they incorporate internal energy storage that can include a series of capacitors. Simpler than a battery, a capacitor stores energy in the electrical field between conductive plates. Capacitors can be made from a variety of materials, and their capabilities can be tuned to a range of operating conditions, safety requirements, and available space.

The team carefully designed the capacitors so they are big enough to store the energy the device needs to turn on and start harvesting power, but small enough that the charge-up phase doesn’t take too long.

In addition, since a sensor might go weeks or even months before turning on to take a measurement, they ensured the capacitors can hold enough energy even if some leaks out over time.

Finally, they developed a series of control algorithms that dynamically measure and budget the energy collected, stored, and used by the device. A microcontroller, the “brain” of the energy management interface, constantly checks how much energy is stored and infers whether to turn the sensor on or off, take a measurement, or kick the harvester into a higher gear so it can gather more energy for more complex sensing needs.

“Just like when you change gears on a bike, the energy management interface looks at how the harvester is doing, essentially seeing whether it is pedaling too hard or too soft, and then it varies the electronic load so it can maximize the amount of power it is harvesting and match the harvest to the needs of the sensor,” Monagle explains.

Self-powered sensor

Using this design framework, they built an energy management circuit for an off-the-shelf temperature sensor. The device harvests magnetic field energy and uses it to continually sample temperature data, which it sends to a smartphone interface using Bluetooth.

The researchers used super-low-power circuits to design the device, but quickly found that these circuits have tight restrictions on how much voltage they can withstand before breaking down. Harvesting too much power could cause the device to explode.

To avoid that, their energy harvester operating system in the microcontroller automatically adjusts or reduces the harvest if the amount of stored energy becomes excessive.

They also found that communication — transmitting data gathered by the temperature sensor — was by far the most power-hungry operation.

“Ensuring the sensor has enough stored energy to transmit data is a constant challenge that involves careful design,” Monagle says.

In the future, the researchers plan to explore less energy-intensive means of transmitting data, such as using optics or acoustics. They also want to more rigorously model and predict how much energy might be coming into a system, or how much energy a sensor might need to take measurements, so a device could effectively gather even more data.

“If you only make the measurements you think you need, you may miss something really valuable. With more information, you might be able to learn something you didn’t expect about a device’s operations. Our framework lets you balance those considerations,” Leeb says.

The work is supported, in part, by the Office of Naval Research and The Grainger Foundation.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Science Daily – https://www.sciencedaily.com/releases/2024/01/240118150739.htm

Tags: scienceSelf-poweredsensor
Previous Post

How does one species become many?

Next Post

Towards the quantum of sound

Mississippi Sports Hall of Fame class of 2025 officially inducted – WLOX

Mississippi Sports Hall of Fame class of 2025 officially inducted – WLOX

August 5, 2025
Your nature photo might be a scientific breakthrough in disguise – ScienceDaily

Could Your Nature Photo Unlock the Next Big Scientific Breakthrough?

August 5, 2025
Scientists reexamine 47-year-old fossil and discover a new Jurassic sea monster – ScienceDaily

47-Year-Old Fossil Reveals an Astonishing New Jurassic Sea Monster

August 5, 2025
Moment of Science: Parker probe offers insights into sun, solar wind – WIS News 10

Parker Probe Unveils New Secrets About the Sun and Solar Wind

August 5, 2025
Nurse, marathon runner Jin Lee promotes healthy lifestyle by example – Bucks County Herald newspaper

Nurse, marathon runner Jin Lee promotes healthy lifestyle by example – Bucks County Herald newspaper

August 5, 2025
Who’s the top dog? Wave-riding canines compete in the World Dog Surfing Championships – NPR

Meet the Ultimate Wave-Riding Dogs Competing for the World Surfing Championship!

August 5, 2025
‘The Big Short’ investor warns despite economy’s stronghold against ‘thoughtless,’ ‘unprecedented’ tariffs so far, stagflation is coming – Fortune

The Big Short’ Investor Issues Stark Warning: Stagflation Threatens Despite Economy’s Surprising Strength Against Unprecedented Tariffs

August 5, 2025
‘Billie Jean’ – Hyde Park Herald

The Enduring Magic Behind ‘Billie Jean’ Revealed

August 5, 2025
Health insurance in Pennsylvania may see biggest hike in years – 90.5 WESA

Pennsylvania Braces for Its Largest Health Insurance Increase in Years

August 5, 2025
The Origins of the Political Power Grab in Texas – The New York Times

Inside Texas’s Bold Quest for Political Control

August 5, 2025

Categories

Archives

August 2025
MTWTFSS
 123
45678910
11121314151617
18192021222324
25262728293031
« Jul    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (755)
  • Economy (780)
  • Entertainment (21,657)
  • General (16,296)
  • Health (9,817)
  • Lifestyle (788)
  • News (22,149)
  • People (779)
  • Politics (789)
  • Science (15,993)
  • Sports (21,276)
  • Technology (15,757)
  • World (761)

Recent News

Mississippi Sports Hall of Fame class of 2025 officially inducted – WLOX

Mississippi Sports Hall of Fame class of 2025 officially inducted – WLOX

August 5, 2025
Your nature photo might be a scientific breakthrough in disguise – ScienceDaily

Could Your Nature Photo Unlock the Next Big Scientific Breakthrough?

August 5, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version