inductance meter adapter circuit

Posted on Feb 6, 2014

This is a design circuit for measure inductance of the inductor labeled LX which is the inductance to be measured. The o/p of the circuit is a TTL square wave whose frequency relates to the inductance being measured. The inductance meter adapter output is connected to a frequency meter and the inductance is calculated from the frequency. This is t

inductance meter adapter circuit
Click here to download the full size of the above Circuit.

he figure of the circuit; The center operate of the circuit is the buffer colpitts oscillator(the first stage) which resonates with the unknown inductance to give a Sine wave of a particular frequency. The frequency of the sine wave is a function of the unknown inductance and the four 1000pF capacitors. The output sine wave is amplified by the second transistor and is then rectified by the capacitor and diode combination that follows. The rectified sine wave now having only positive excursions is buffered by the third transistor and is then fed to the 74ls393. Counter IC which is configured as a divide by 256 counter. The output of the IC pin 6 and ground is connected to the frequency meter.

Leave Comment

characters left:

New Circuits



Popular Circuits

Biomedical Monitoring circuit AT89C2051
Simple FM transmitter
Crystal Controlled FM Transmitter
VHF UHF HF active antenna electronic circuit project with explanation
de amst wiskar: robot line folower
Discrete Sliding Tone (Frequency Ramp) Doorbell
Power supply circuit design
10W Audio Amplifier with Bass-boost
Laser Power Supplies
gmc sierra 1500 1995 gmc serria abs light comes
A simple DDS for 136kHz
Car amplifier TA8205AH application and substitution
Pressure sensor circuit with a filtering and amplification circuit diagrams