impedance tester

KARIM102

Dears,
how i can make impedance tester from basic stamp s2??????????????????

Peter KG6LSE

impedance . AC resistance . hmm send out a pulse and mesure its loss .... TDRs use this idea ..

this is Pie in the sky but might set ya on a good road to look into ..
what is Really looked at is the way a riseng edge pulse reacts to L C R parts... ELI the ICE man and ll that jazz/

By knowing some parameters you can calculate Z.

so a few parts are in order ... a Pulse maker . Yes the BS2 makes pulses but this might just need to be stand alone .

so a OSC 555 triggerd by the BS2 is one way.

this sets out a Freq .. lets say 1KHz at 10 V Pk to Pk . then on the Return side have a ADC read the current that flows .


so with some Ohms law you can find the impedance .




peter..

KARIM102

thanks alot

Peter KG6LSE

is this for speakers or for more wide lab use ....?

KARIM102

it is for lab use actually, i want to test so bleed sensor which are use to detect leak of the hot air. but cz we use loop test, i thought i can make on by using basic stamp to give me acccute digit reading....

FranciscoTavares

Can you give more details about your project?
Measure a impedance can be tricky because capacitors and inductors react differently to certain signals.
For instance, a square signal with inductor can produce high value signals that can even damage some circuits.
Do you have this sensor specifications?

KARIM102 wrote: »

Dears,
how i can make impedance tester from basic stamp s2??????????????????