Tech-Wonders.com

Menu
  • Apps
  • How To
  • Gadgets
    • Mobile
  • Software
  • Technology
  • Sitemap
  • Contact Us

Tech-Wonders.com » Electrical

How to Find the Value of Self-Inductance and its Inherent Resistance of a Given Coil Using Anderson Bridge

Anderson Bridge:-

The Bridge is used to measure the self-inductance of a coil in terms of standard known capacitor. The bridge and its connection diagrams are as shown below:

Anderson Bridge Circuit Diagram
Anderson Bridge
Anderson Bridge Connection Diagram as in Kit
Connection Diagram

The first figure shows the Anderson Bridge circuit diagram and second figure shows the connections to be made in the kit. It indicates the headphones detector, Galvanometer G, 1KHz Supply, 3V D.C Supply and inductance.

For null detection which occurs when the bridge is in balanced condition, it can be shown that the self inductance is given by L = CR(Q + 2r)

Procedure for Anderson’s Bridge:-

  1. Make connections as shown in the connection diagram.
  2. Here Galvanometer is the detector and 3V D.C supply is the source to the unknown inductance.
  3. Adjust the dial R to get balance point with the galvanometer.
  4. Using the resistance dial ‘S’ for fine balancing, note down the values of R
  5. Replace D.C supply with A.C supply of 1KHz frequency. Replace the galvanometer with headphones for getting null point.
  6. Set standard capacitance ‘C’ at position 0.1mF and adjust resistance dial ‘r’ till you get balance point as indicated by minimum sound in the headphones. Note the values resistance ‘r’ and calculate unknown inductance using the formula L = CR(Q + 2r). The range of Q factor for Anderson Bridge is 1 < Q < 10
  7. Repeat above steps choosing different values of inductance and capacitance and tabulate the results.

Here in the Anderson Bridge, the term Bridge Sensitivity (SB) is defined as the deflection of the galvanometer for unit fractional change in the unknown quantity. And besides vibrational galvanometers, other 2 types of detectors that are used most are headphones and tunable amplifier detectors.

Advantages of Anderson Bridge:-

  • Fixed capacitor is used instead of variable capacitor as in case of maxwell’s bridge.
  • The bridge is used for accurate determination of inductance in terms of capacitance.

Disadvantages of Anderson Bridge:-

  • Bridge is more complex.
  • An additional junction point increased the difficulty of shielding the bridge.
  • Complex balance equations.

Tweet
WhatsApp submit Email
Prev Article
Next Article
Tags:Electrical Measurements

Leave a Reply Cancel Reply

Recent Posts

  • Advanced SEO Tips for WordPress Website to Rank On Google
    Advanced SEO Tips for WordPress Website to Rank On Google
  • How Does a Cellular Signal Booster Work?
    How Does a Cellular Signal Booster Work?
  • How to Find the Best Crypto Gambling Sites: A Guide for Players
    How to Find the Best Crypto Gambling Sites: A Guide for Players
  • How to Enhance Image Quality Without Using Photoshop
    How to Enhance Image Quality Without Using Photoshop

Categories

  • Apps
  • Big Data
  • Blog
  • Books and Reviews
  • C Programming Language
  • Cars
  • Certifications
  • Chemistry
  • Computers
  • Data Warehousing
  • Ecommerce
  • Electrical
  • Electronics
  • Engineering
  • Entrepreneurs
  • Facebook
  • Featured
  • FinTech
  • Fuzzy Logic
  • Gadgets
  • Games
  • Gmail
  • Google
  • Google Plus
  • Health Tech
  • How-to Topics
  • Infographics
  • Instagram
  • Internet
  • JavaScript
  • Jobs
  • LinkedIn
  • Marketing
  • Mathematics
  • Microsoft
  • Mobile
  • Numismatics
  • Online Earning
  • Pinterest
  • Plagiarism
  • Programming Languages
  • Python Programming Language
  • Real Estate
  • Road Transport
  • Salesforce
  • Science and Technology
  • Security
  • SEO
  • Social Media
  • Social Networking
  • Software
  • SQL
  • Swift Programming Language
  • TikTok
  • Travel
  • Troubleshooting Tips
  • Twitter
  • Web Designing and Development
  • Websites
  • Windows
  • WordPress
  • YouTube Tips and Tricks

Tech-Wonders.com

Technology Blog

About the Admin

RamaRaoBobby Hi there! I am RamaRao Bobby, Founder and Editor-in-Chief of
Tech-Wonders.com, Kakinada’s Top Technology Blog.

I am an avid Dog Lover and Tech Enthusiast. Read More

  • Archives
  • Disclaimer
  • Privacy Policy
  • Featured Comments

Recent Comments

  • Poonam on Best Top 10 Marathi Websites and Blogs
  • Jeff Stewart on Best Web Hosting Services to Publish a Blog or Website
  • Jack on How to Unlock Your AT&T iPhone Using Unlock Phone Codes
  • Gavrielle Curry on Major Procurement Issues: How to Fix Them With Technology
  • Pranav Pawar on Best Top 10 Marathi Websites and Blogs

Always Remain in Touch

Subscribe

Copyright © 2022 Tech-Wonders.com