The most important quantity that one comes across in the study of electrical and electronic is signal either it cans voltage or anything else. For successful operation, installation and repair of electrical and electronic equipment, it becomes necessary to measure different aspect like voltage signal, current etc and the instrument used for the measurement of these quantities is called meter.
Systematic fault finding and electronic appliance servicing requires the use of certain service tests and measuring instrument and equipment. Correct use and proper handling of these test instruments is as essential for any technician as the knowledge of the functioning of various stages and components in an electronic circuit.
Here in this section we publish various common test instruments and equipment for testing of electrical and electronic appliance and measurement of various aspects like current, voltage, resistance etc. Basically these meters are used to detect current with suitable modification to measure all these quantity. The correct uses of these meters require a clear understanding of the working and use of various types of meter.
Electronic Measurement and Test Circuit Available in bestengineeringprojects.com are listed below.
Electronic Measurement and test Circuit |
Circuit Sample |
 1.  100 Rung Exclusive Counter | |
 2.  A Versatile Decibel Meter Circuit | Audio Level Indicator | |
 3.  All in One Tester Circuit | |
 4.  Analogue Frequency Meter with Over-Range Indicator | |
 5. Digital Voltmeter (DVM) Circuit | |
 6.  Electronic Room Thermometer Using Op-amp 741 | |
 7.  Frequency Counter Using Digital Multi-Meter | |
 8.  In-Circuit Ohm-Meter | Ohm-Meter for Electronic Circuit | |
 9.  Mains Line Frequency Meter Circuit | |
 10.  Operational Amplifier 741 Tester | |
 11.  Transformer Test Circuit to Overcome Line Voltage Variation | |
 12.  Transistor, TRIAC and SCR Tester Circuit | |
 13.  Universal Crystal Test Circuit Using CA4007 | |
 14.  Water Level Indicator Circuit | |
 15. Electronic Thermometer Circuit | |
 16. 5-State Digital IC and Circuit Tester | |
 17.  Data Logger Using Computer | |
 18.  555 Timer IC Tester | |
 19.  Capacitor Tester cum Flasher |