element14 Community
element14 Community
    Register Log In
  • Site
  • Search
  • Log In Register
  • Community Hub
    Community Hub
    • What's New on element14
    • Feedback and Support
    • Benefits of Membership
    • Personal Blogs
    • Members Area
    • Achievement Levels
  • Learn
    Learn
    • Ask an Expert
    • eBooks
    • element14 presents
    • Learning Center
    • Tech Spotlight
    • STEM Academy
    • Webinars, Training and Events
    • Learning Groups
  • Technologies
    Technologies
    • 3D Printing
    • FPGA
    • Industrial Automation
    • Internet of Things
    • Power & Energy
    • Sensors
    • Technology Groups
  • Challenges & Projects
    Challenges & Projects
    • Design Challenges
    • element14 presents Projects
    • Project14
    • Arduino Projects
    • Raspberry Pi Projects
    • Project Groups
  • Products
    Products
    • Arduino
    • Avnet Boards Community
    • Dev Tools
    • Manufacturers
    • Multicomp Pro
    • Product Groups
    • Raspberry Pi
    • RoadTests & Reviews
  • Store
    Store
    • Visit Your Store
    • Choose another store...
      • Europe
      •  Austria (German)
      •  Belgium (Dutch, French)
      •  Bulgaria (Bulgarian)
      •  Czech Republic (Czech)
      •  Denmark (Danish)
      •  Estonia (Estonian)
      •  Finland (Finnish)
      •  France (French)
      •  Germany (German)
      •  Hungary (Hungarian)
      •  Ireland
      •  Israel
      •  Italy (Italian)
      •  Latvia (Latvian)
      •  
      •  Lithuania (Lithuanian)
      •  Netherlands (Dutch)
      •  Norway (Norwegian)
      •  Poland (Polish)
      •  Portugal (Portuguese)
      •  Romania (Romanian)
      •  Russia (Russian)
      •  Slovakia (Slovak)
      •  Slovenia (Slovenian)
      •  Spain (Spanish)
      •  Sweden (Swedish)
      •  Switzerland(German, French)
      •  Turkey (Turkish)
      •  United Kingdom
      • Asia Pacific
      •  Australia
      •  China
      •  Hong Kong
      •  India
      •  Korea (Korean)
      •  Malaysia
      •  New Zealand
      •  Philippines
      •  Singapore
      •  Taiwan
      •  Thailand (Thai)
      • Americas
      •  Brazil (Portuguese)
      •  Canada
      •  Mexico (Spanish)
      •  United States
      Can't find the country/region you're looking for? Visit our export site or find a local distributor.
  • Translate
  • Profile
  • Settings
The Learning Circuit
  • Challenges & Projects
  • element14 presents
  • The Learning Circuit
  • More
  • Cancel
The Learning Circuit
Documents How Accelerometers Work -- The Learning Circuit 79
  • Documents
  • Files
  • Members
  • Mentions
  • Sub-Groups
  • Tags
  • More
  • Cancel
  • New
The Learning Circuit requires membership for participation - click to join
Actions
  • Share
  • More
  • Cancel
Engagement
  • Author Author: tariq.ahmad
  • Date Created: 29 Sep 2020 7:22 PM Date Created
  • Last Updated Last Updated: 24 Jun 2020 7:24 AM
  • Views 2950 views
  • Likes 10 likes
  • Comments 2 comments
Related
Recommended

How Accelerometers Work -- The Learning Circuit 79

element14 presents
How Accelerometers Work

The Learning Circuit | element14 presents |  Project Videos

 

You don't have permission to edit metadata of this video.
Edit media
x
image
Upload Preview
image

 

In this video, Karen teaches about accelerometers. Accelerometers are electro-mechanical sensors used in an immeasurable number of devices today. Karen explains what acceleration is and how force comes into play when measuring it. Learn about how MEMS and piezoelectric accelerometers work, what sensitivity and measurable ranges you can find, and hear from the other element14 VCPs about where they use accelerometers in devices and projects.

  • crystal
  • deceleration
  • micro:bit
  • gravity
  • electro-mechanical
  • piezoelectric
  • e14presents_karencorbeill
  • acceleration
  • orientation
  • mems
  • imu
  • g-force
  • freefall
  • galileo
  • electrode
  • vibration
  • standard gravity
  • gal
  • newton’s laws
  • Share
  • History
  • More
  • Cancel
  • Sign in to reply

Top Comments

  • DAB
    DAB over 4 years ago +4
    Very good episode Karen. One small nit, when you talked about the piezo electric sensor you said the crystal was full of ions. That is not correct. The crystal material is atoms in a lattice which are…
  • makerkaren
    makerkaren over 4 years ago in reply to DAB +2
    I couldn't find much information that got really in depth on how that works, so I made a few assumptions based on what else I learned. Thanks for the info!
  • makerkaren
    makerkaren over 4 years ago in reply to DAB

    I couldn't find much information that got really in depth on how that works, so I made a few assumptions based on what else I learned. Thanks for the info!

    • Cancel
    • Vote Up +2 Vote Down
    • Sign in to reply
    • More
    • Cancel
  • DAB
    DAB over 4 years ago

    Very good episode Karen.

     

    One small nit, when you talked about the piezo electric sensor you said the crystal was full of ions. That is not correct.

    The crystal material is atoms in a lattice which are sensitive to displacement. When you apply a force, the atoms are compressed, which causes them to emit photons, some say electrons but that is another discussion, which carry a charge to a voltage sensor, which then detects the increase in charge flow, which is then converted to the g force amount.

     

    Also, the accelerometer is more of an impulse device. It detects changes, not steady forces, which is why it normally reads zero under the influence of gravity.

     

    I know some people have been confused thinking that the gravitational force should tell them when a device is falling, but under those conditions, the actual force is constant and the device reads zero until it stops moving.

    When you combine the three different sensors in a nine dimensional sensor, then you can build up an inertial measurement unit, which can be used to keep track of changes in all three axis during movement.

     

    DAB

    • Cancel
    • Vote Up +4 Vote Down
    • Sign in to reply
    • More
    • Cancel
element14 Community

element14 is the first online community specifically for engineers. Connect with your peers and get expert answers to your questions.

  • Members
  • Learn
  • Technologies
  • Challenges & Projects
  • Products
  • Store
  • About Us
  • Feedback & Support
  • FAQs
  • Terms of Use
  • Privacy Policy
  • Legal and Copyright Notices
  • Sitemap
  • Cookies

An Avnet Company © 2025 Premier Farnell Limited. All Rights Reserved.

Premier Farnell Ltd, registered in England and Wales (no 00876412), registered office: Farnell House, Forge Lane, Leeds LS12 2NE.

ICP 备案号 10220084.

Follow element14

  • X
  • Facebook
  • linkedin
  • YouTube