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Meter

High Voltage Meter Circuit [for Measuring 10kV]

Last Updated on May 21, 2022 by Swagatam 8 Comments

high voltage meter circuit

In this article I have explained a simple high voltage meter circuit which can be used for measuring extremely high voltages in the order of many 1000s of volts. The circuit can be used to measure high voltages from CDI units, Automobile spark plugs, high voltage generators, mosquito bat circuits, fence chargers, room ionizer circuits […]

Filed Under: Meters and Testers Tagged With: 10kV, High, Measuring, Meter, Voltage

Light Meter Circuit with LED Bar Graph

Last Updated on July 9, 2023 by Swagatam 10 Comments

simplest light meter circuit

In this article I have explained 3 different light meter circuits for measuring power of light. In the first method we will use only a solar cell and a multimeter, in the second method we will use an op amp and a moving coil meter, and in the third method we will see how a […]

Filed Under: Meters and Testers Tagged With: Graph, LED, Light, Meter

Microamp Meter Circuit

Last Updated on September 20, 2021 by Swagatam 18 Comments

microamp meter circuit compressed 1

A microamp meter or microammeter is a device that allows the user to measure extremely small current levels, in microamps, which is normally not possible to measure using conventional multimeters. A conventional panel meter or multimeter will not be able to properly measure currents of a few microamps or less. It is required to utilize […]

Filed Under: Meters and Testers Tagged With: Meter, Microamp

Field Strength Meter Circuit

Last Updated on September 17, 2023 by Swagatam 10 Comments

field strength meter circuit

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 circuits invariably use an inductor/capacitor based LC resonating circuit, also called the tank circuit, which oscillates at a specified resonating frequency to transmit the frequency […]

Filed Under: Sensors and Detectors Tagged With: Field, Meter, Strength

2 Simple Milliohm Meter Circuits [Measure Low Resistances below 1 Ohm with these Circuits]

Last Updated on January 19, 2025 by Swagatam 3 Comments

low ohm tester circuit compressed

The low resistance measuring circuit I have explained below can be used for measuring all milliohm resistances below 1 ohm with extreme accuracy. The resistance to be measured can be as low as 0.01 ohm or 10 milliohm. The output of the circuit converts the resistance value to exactly equivalent volts, which means the output […]

Filed Under: Meters and Testers Tagged With: Circuits, Measure, Meter, Milliohm, Resistances, Simple

Capacitive Fluid Meter Circuit for Sealed Tanks

Last Updated on April 11, 2021 by Swagatam 5 Comments

capacitive fluid meter circuit compressed

At times it becomes important to determine the amount of water inside a sealed tank, by employing a stationery sensor. A sensible remedy to the issue is to make use of a cylindrical capacitor concept. One plate of the capacitor is created with the liquid surrounding an insulated conductor, where insulation of the conductor works […]

Filed Under: Water Controller Tagged With: Capacitive, Fluid, Meter, Sealed, Tanks

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