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Home » Sensors and Detectors

Field Strength Meter Circuit

Last Updated on September 15, 2021 by Swagatam Leave a Comment

A field strength meter is an electronic device which is used for detecting and measuring the RF radiation generated from any RF transmitter circuit. As we all know that transmitter […]

Filed Under: Sensors and Detectors

Ultrasonic Motion Detector Circuit

Last Updated on October 26, 2021 by Swagatam 8 Comments

This ultrasonic motion detector circuit project picks up movement of any object including human beings from a distance of 4 to 7 meters away. As soon as the motion is […]



Filed Under: Sensors and Detectors, Ultrasonic Projects

How to Use Diodes, Transistors, ICs as Temperature Sensors

Last Updated on May 16, 2022 by Swagatam 4 Comments

Normally we find thermistors being used as the sensor for detecting and monitoring temperatures in electronic circuits. However, ordinary semiconductor components like transistors and diodes actually work better than thermitors […]

Filed Under: How to Articles, Sensors and Detectors

Motion Detector Circuit using Doppler Effect

Last Updated on October 21, 2020 by Swagatam 4 Comments

The motion sensor circuit explained in the article works by using doppler shift principle, in which the moving target is detected through the continuously varying frequency, reflected from the moving […]

Filed Under: Sensors and Detectors

Precision Current Sensing and Monitoring Circuit using IC NCS21xR

Last Updated on October 18, 2020 by Swagatam 2 Comments

If you are looking for current shunt monitors or current sense amplifiers then you have landed at the right page. Current shunt monitor is an instrumentation amplifier which senses the […]

Filed Under: Sensors and Detectors

How Contactless Infrared Thermometers Work – How to Make One

Last Updated on February 26, 2022 by Swagatam 4 Comments

In this post we will learn the basic working concept of thermal scanners or contactless IR thermometers, and also learn how to make a practical DIY prototype of the unit […]

Filed Under: Health Related, How to Articles, Infrared (IR), PIR (Passive Infrared), Sensors and Detectors



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