• Home
  • Archive
  • Tools
  • Contact Us

The Customize Windows

Technology Journal

  • Cloud Computing
  • Computer
  • Digital Photography
  • Windows 7
  • Archive
  • Cloud Computing
  • Virtualization
  • Computer and Internet
  • Digital Photography
  • Android
  • Sysadmin
  • Electronics
  • Big Data
  • Virtualization
  • Downloads
  • Web Development
  • Apple
  • Android
Advertisement
You are here:Home » How to Make a Non-Contact Voltage Tester

By Abhishek Ghosh May 19, 2021 5:18 pm Updated on May 19, 2021

How to Make a Non-Contact Voltage Tester

Advertisement

Non-contact voltage contact testers are difficult to classify as a tester because they are not subject to a special standard. Non-contact phase testers use a sensor to detect the electric field strength in the immediate vicinity of the conductor and visually signal via a display. A battery is required for operation. Depending on the sensitivity, the existence of voltage can also be determined even when insulation of a cable is present. The fundamental problem, however, is the capacitive functioning of these devices, which is only suitable for detecting alternating voltage and does not detect DC voltages. Many devices also lack the essential safety. Safe detection of voltages above 50 V AC often not possible.

A digital clamp multimeter also does not need a “contact”, however a non-contact voltage tester is a simple, cheap instrument for just understanding whether the voltage is present.
Also, the circuit can be creatively used to build decorative and status lights.

There are many ways to build a non-contact voltage tester circuit. The easiest is to use two 2N3904 transistor, one 220 Ohm resistor, one LED and a 9V battery. Below is the circuit :

Advertisement

---

How to Make a Non-Contact Voltage Tester

You will find the guide here, however this circuit is suitable to build a non-contact status light. This is an open base Darlington transistor amplifier with extremely high gain. If it doesn’t light up that doesn’t necessarily mean there is no live voltage!

We can build quite reliable non-contact voltage tester in more ways such as using IC 4017 Decade Counter or by using a 555 Timer IC or by using General Purpose NPN Transistors or by using an IC 74HC14 or by using IC LM358A and so on.

How to Make a Non-Contact Voltage Tester

If you want to build a thing equivalent to the Non Contact Voltage Test Pens sold on Amazon, then the below resources may help you:

Vim
1
2
3
http://hackedgadgets.com/2014/05/24/non-contact-voltage-test-pen-teardown/
https://www.avrfreaks.net/forum/non-contact-voltage-detector
http://zpostbox.ru/non-contact_ac_mains_voltage_detector.html

555 timer is a common chip used in electronics projects and you can easily build a non-contact tester with it. This circuit is very simple.

Tagged With https://thecustomizewindows com/2021/05/how-to-make-a-non-contact-voltage-tester/ , ac detector using cd4017 schematic , circuit AC tester , homemade 4v non contact electric tester diy , homemade simple non contact voltage tester , How to make homemade non contact tester , Non contact voltage detector using transistor , non-contact voltage detector schematic 555
Facebook Twitter Pinterest

Abhishek Ghosh

About Abhishek Ghosh

Abhishek Ghosh is a Businessman, Surgeon, Author and Blogger. You can keep touch with him on Twitter - @AbhishekCTRL.

Here’s what we’ve got for you which might like :

Articles Related to How to Make a Non-Contact Voltage Tester

  • Nginx WordPress Installation Guide (All Steps)

    This is a Full Nginx WordPress Installation Guide With All the Steps, Including Some Optimization and Setup Which is Compatible With WordPress DOT ORG Example Settings For Nginx.

  • WordPress & PHP : Different AdSense Units on Mobile Devices

    Here is How To Serve Different AdSense Units on Mobile Devices on WordPress With PHP. WordPress Has Function Which Can Be Used In Free Way.

  • Changing Data With cURL for OpenStack Swift (HP Cloud CDN)

    Changing Data With cURL For Object is Quite Easy in OpenStack Swift. Here Are Examples With HP Cloud CDN To Make it Clear. Official Examples Are Bad.

  • Voltage Regulation in Electronic Circuit : Theory For Arduino

    Voltage Regulation in Electronic Circuit is an Important Topic For the DIY Electronic Enthusiasts Including Those Who Are Working With Arduino.

performing a search on this website can help you. Also, we have YouTube Videos.

Take The Conversation Further ...

We'd love to know your thoughts on this article.
Meet the Author over on Twitter to join the conversation right now!

If you want to Advertise on our Article or want a Sponsored Article, you are invited to Contact us.

Contact Us

Subscribe To Our Free Newsletter

Get new posts by email:

Please Confirm the Subscription When Approval Email Will Arrive in Your Email Inbox as Second Step.

Search this website…

 

Popular Articles

Our Homepage is best place to find popular articles!

Here Are Some Good to Read Articles :

  • Cloud Computing Service Models
  • What is Cloud Computing?
  • Cloud Computing and Social Networks in Mobile Space
  • ARM Processor Architecture
  • What Camera Mode to Choose
  • Indispensable MySQL queries for custom fields in WordPress
  • Windows 7 Speech Recognition Scripting Related Tutorials

Social Networks

  • Pinterest (24.3K Followers)
  • Twitter (5.8k Followers)
  • Facebook (5.7k Followers)
  • LinkedIn (3.7k Followers)
  • YouTube (1.3k Followers)
  • GitHub (Repository)
  • GitHub (Gists)
Looking to publish sponsored article on our website?

Contact us

Recent Posts

  • Affordable Earphone/IEM for Audiophiles: HiFiMan RE-400 WaterlineOctober 2, 2023
  • What is Hardware Security Module (HSM)September 30, 2023
  • Transducer Technologies of HeadphonesSeptember 28, 2023
  • What is Analog-to-Digital Converter (ADC)September 27, 2023
  • Comparison of Tube Amplifiers and SemiconductorsSeptember 26, 2023
PC users can consult Corrine Chorney for Security.

Want to know more about us?

Read Notability and Mentions & Our Setup.

Copyright © 2023 - The Customize Windows | dESIGNed by The Customize Windows

Copyright  · Privacy Policy  · Advertising Policy  · Terms of Service  · Refund Policy