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Turn your Digital Voltmeter into an Inductance and capacitance meter. Page 1. Page 2. Products 1 – 20 of 22 Source LCR Meter Accessories at ; the leading distributor of IT, Test Peak Electronic Design LLSm LCR Meter Adapter.

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LC Connector adapter

More resources from carbonzit Resource icon. For example, use a 1 microhenry inductor and adjust the potentiometer to get mv on the DVM.

The voltage regulator provides 6-Volts stabilized voltage for the circuit. A switch S2 is used to configure the measurement circuit. Author carbonzit Creation date May 25, At first, adjust inductancs R Resource icon Inductance measuring adapter for multimeter The hysteresis in the schmitt trigger allows it to oscillate with the simple feedback circuit.

Inductance and capacitance meter adapter for DVM

The switch S2 is in position “L”. It is an irreplaceable tool for troubleshooting and repairing electronic equipment by determining performance and health of electrolytic capacitors.

When the switch S1 is in “C” position, it connects another diode into the circuit, making a voltage doubler rectifier circuit see the Figure 3.

Inductance and capacitance meter adapter for Mster This device is an addon to a digital or analog voltmeter.


MFJ Enterprises Inc.

Real-Time ‘Stopwatch’ This is a simple electronic “stopwatch” you can use to time an event. The last inverter in merely to make the pulse positive in polarity so that the voltage increases as the inductance increases. This site uses cookies indcutance help personalise content, tailor your experience and to keep you logged in if you register. It works as an oscillator whose frequency is determined by the RC components R The circuit includes an auto ranging as well as reset switch and produces very accurate and stable readings.

When you built this, keep the connections, including gorund connections, short because tens of nanoseconds count. Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets.

If not, then match the value of the resistor R7 to make shape of the signal as close to square wave as possible. Never mind, just adjust the oscillator frequency until you get it to calibrate. A power supply of the circuit is a 9-Volt battery or any other voltage source. This device is an addon to a digital or analog voltmeter. To my surprise, it actually worked just fine, 1K in series was sufficient to allow a useful calibration and didn’t overload the drive capabilities of the last gate in the package.


The meter is a perfect addition to any power supply, battery chargers and other electronic projects where voltage and current must be monitored. This Inductnace network operates as an integrator circuit. Potentiometer Questions Started by norbss Yesterday at By continuing to use this site, you are consenting to our use of cookies.

The switch S2 is in position “C”. The output waveforms can be both amplitude and frequency modulated. How the circuit works The schematic diagram for the inductance and capacitance meter is shown in Fig.

Articles Top Articles Search resources. It’s small, power efficient, yet customizable through onboard 2 x 7 perfboard that can be used for connecting various sensors and connectors. This circuit is keter accurate for broadband inductors. Inductance Meter In-Use The resolution of the analogue meter obviously limits its performance, but I generally use it to just ensure I am in the right ballpark while winding coils or picking from the junk box.