Pulse Induction Mono coil Self Resonant Frequency
ฝัง
- เผยแพร่เมื่อ 3 ส.ค. 2024
- This video shows a pulse induction mono-coil being excited by proximity coupling with the coil from an operating Barracuda PI metal detector in order to attempt to discover the coil's Self Resonant Frequency and in turn to calculate the correct value of the new mono-coil's Damping Resistor.
Excellent ❤❤❤
yay... really enjoyed this
I enjoyed that video myself. Its a bit "rough and ready" but the topic is really of interest to me.
Thanks for the comment.
Waw good job..from indonesia
Terima kasih dan selamat datang di saluran saya
Amazing video !!! please tell me does the resistance matter to the search coil functions ? if so can you explain why ?
Hello and thanks for the kind words. I think that when building a coil you should be more concerned with the inductance and the self resonant frequency of the coil. I believe that in general a coil in the region of 300uH will be faster than one with a higher inductance. A faster coil will allow you to have a smaller sample delay which is better for gold. If you like my content, please do subscribe.
Hi
First of all i want to thank you for your videos,
I want to make a coil that i can search up to about 3 meters using polones
How should i make this?
I cant calculate the diameter of coil and number of turns and ohm and inductance
Can you help me?
When you are using that transistor tester to check Capacitance of the coil does it have a capacitor hooked up to it also the reason i ask is im building a coil i did it with more turns so i could take some off until i got to the exact capacitance as in the post but somehow i ended up with less capacitance then he did i got 28.8MH he has 35MH with less turns ?
The transistor tester is testing for Inductance. The coil is connected directly to the tester with no other components. I am unsure what or who you are referencing with the remainder of your question.
I’m building a 8” concentric coil from a forum off online I used the same specs except a one size bigger gauge wire and I added ten extra turns which should make it higher canpctence but it’s not it’s saying it’s lower than even the calc it’s saying it’s like 43 turns to short
Also the reason I asked is you have wires going into the tester not the coil magnet wire
I am guessing that you mean Inductance as opposed to capacitance? Sounds like you have not input the correct variables into your coil calculator. Are you using this one?
www.geotech1.com/forums/showthread.php?17909-Coil-Calculator
@@SurfDetector yes I posted pics in geo by the way it’s Silversurfer
What kind of cable do u suggest to connect coil to MD pulse induction?
I like to use:
Canare DA202 110 Ohm AES/EBU Digital Audio Cable
I made a PI metal detector and need some help n the search coil,I made a 45*45 coil but it can't detect big objects for more than 1m in the air ,so if possible I need some help to correct this issue,
What characteristics for a good coil .
What is the inductance of your coil? What detector did you build?
@@SurfDetector I built a pi polones,the coil inductance 380 uH, resistance 1,9 ohm,
So if I want that the coil detect object for 2m deepth,what characteristics should I have in both side in the detector and the coil.
@@adil123eei hi adil we are also working on PI detector please connect with us (science1pk@gmail.com) thanks
@@safeerahmed7268 ok
@@adil123eei Adil, You should look to build the Delta Pulse. The Polones is good for finding coins not big treasure.
Amazing...
How turn for diameter 15 x 45 and 45 cm, if use wire 1 mm 0r 0.2 mm
Thank u before
Can we ussing mono coil for vlf mesin..
No you cannot use a mono coil for VLF
@@SurfDetector ok thank's mate
How much is the diameter of the coil? What you made on this video, works for polones detector?
This is a 9 inch coil. It will work for the Polones.
Mohon bantuannya 🙏🙏 saya ingin membuat coil diameter 25cm berapa banyak lilitan yang harus saya gunakan,
Terimakasih 🙏🙏
Selamat datang
What size wire do you have? I need the size to tell you how many turns.
@@SurfDetector I have used a 0.5 wire email 🙏🙏
20 turns will give you about 312uH
Thank you for watching my videos and please subscribe
@@SurfDetector
ok thanks and I'll try later, oh yeah I've subscribed to your channel from yesterday 🙏🙏
@@metaldetektorjawatengah3024 I am happy to help you. Thank you for subscribing. I support your channel by subscribing as well.
Pulse dedektör icin 1*1 baslık 05 tel kactur
You need to use a coil calculator so that you match the inductance to your detector. On the Geotech Forum in the Coils section there is a calculator.
I would also like to make a detector ... Can you give me your knowledge .... Give me a circuit pcb print if you can .I would love to practice too ....Im isanka
You can find many many schematics and a lot of free information if you go to the Geotech Forum. There is much to learn there my friend.
@@SurfDetector ok friend ..but im srilankan boy...you can help me...
@@isankaprasad9607 Hello my friend. The help that I give to everyone is making these videos so that people can learn how to build these projects. That is all the help that I can provide.