DIY simple Metal detector
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- เผยแพร่เมื่อ 2 เม.ย. 2019
- PCB Prototype for $2(Any Color): jlcpcb.com
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Download archive www.kit-shop.org/zip/metal.zip
Buy metal detector ali.pub/2vg3lq
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CD4011 ali.pub/2vg3ce
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Resistors ali.pub/2vg3je
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Capacitors ali.pub/2vg3u3
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My laboratory equipment
Laboratory power supply ali.pub/2tmanr
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Multimeter 1 ali.pub/2tm7hm
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Multimeter 2 ali.pub/2tm7xk
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Multimeter 3 ali.pub/2tmcks
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Multimeter 4 ali.pub/2tm9qb
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Current clamp ali.pub/2tm9yo
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Capacitance and inductance meter ali.pub/2tm945
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Universal Signal Generator ali.pub/2tmgij
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Oscilloscope ali.pub/2tmb1d
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Transistor tester ali.pub/2tma7t
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Thermometer ali.pub/2tm8sa
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Frequency meter ali.pub/2tmigc
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Electronic load ali.pub/2tmagy
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Intelligent Chip Tester ali.pub/2tmicu
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Soldering Iron ali.pub/2tmbm6
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Microscope
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A few comments about the circuit.
1)The resistors R1 and R4 are not really needed.
2)I would add a resistor from the junction of C1 and R2 to pins 8&9 of the chip. The CD4000 series of gates have input protection diodes. If you look at the waveform on the junction of C1 and R2 you will see that it spikes beyond the supply rails. This turns on the protection diodes briefly. The protection diodes have an "unfortunate feature" that a current in one causes leakage in the others.
3) An AND gate works OK as the mixer but an XOR works better. An XOR will make it about two times as sensitive at the cost of not all being one chip.
4) A coil made more like a "spiderweb coil" that the crystal radio folks like will work a little better. The capacitance from one turn to the next and other effects reduces the Q of this coil as shown.
What program is used to open the file?
Really nice project. Some days ago I thought about to build one for my nephew. Spasiba :)
So great!Thank you professor! I love this excellent video! God bless you nice lady!
Thanks a lot for such good videos, well explained and lots of good stuff.
One thing I like the most is that you keep away of Arduino stuff and prefer the good old fashioned way to do things. That's the way to really work and learn electronics. The fun way. The correct way.
Please don't change. You're doing great!
Always thumbs up. Love your channel! Thanks.
Great !!!
Could you make circuit to measure floating voltage.
If I have series of lithium ion battery cells how to measure individual cell voltage using microcontroller which accept input up to 5 volt.
Great video! Thanks.
Awesome love from India
Very good project 👍
What program is used to open the file?
Watched the whole video, juat for that funny sound at the end 🤣😃😄😆😆
nice . cane you make more sensitive one and stable frequency
nice video tutorials
Supper ,thank you very much for you ,God bless you friend
Good job
Awesomesauce !
I thanks you so much
madam I want to make this project so may you help me sizes of the elements which consist this project thank you
Nice director
Your circuits are marvellous .pl make a circuit for VU meter with preamp circuit like OP-amp ic am famous LM 3916/56 with pick detector.
That is not pulse induction detector. It is BFO (beat frequncy). Nice video thank you.
Nice 👍💙
Really nice work, dude! 😃
I think about making one some day too... 😊
Have you tried it? It's junk. It does not work well. There are plenty better circuits out there. Check out the russian videos. They are experts at making metal detectors.
What program is used to open the file?
美丽的工作
What is the inductance of the coil?
With no previous experience on metal detectors I would guess that a smaller diameter coil with the same inductance would be more accurate in pinpointing objects but would only be able to search closer to the surface, right?
This could be usefull for an in wall nailfinder.
EDIT: I guess that the frequency would have to be changed to search for iron nails though.
as a DIY metal detector entusiast i could say that the inductance of the coil is not so critical... my suggestion is to build the project like this the first time, than experiment with other values ;). the smaller coil will be sensitive to small objects but at less depth. this metal detector is perfect to search inside the walls because is o bfo type no-motion detector you will be able to search between rebars in the walls... i think the frequency of the detector will be approx 50-100KHz this make them good to find little objects and gold... probably a little problematica if used on soil due to the ground minerals response. chek my channel too bye.
Great !!!
LOL! I just found a few CD/TC4011s in a pill box this afternoon while cleaning up. I don't know where I got them from, I don't know why they were in that box, I don't know how long they've been there and because I'm mostly using SMD components and microcontrollers nowadays I wanted to throw them out. I guess now I DO KNOW what I will do on the weekend. :)
What program is used to open the file?
@@PaleontologiaEnPatagonia sPrint Layout
This is use for security
I made one and it resonates at 90 Khz, I would prefer it to run at 133 Khz as designed, which capacitor, C2 or C3 would be better to change for a smaller value?
What're the value of each capacitor please because the capacitors value shown in the schametic is differ than the capacitors on the pcb
thankas
This is not a pulse metal detector. You may see it described as a beat-frequency-oscillator (BFO) type.
That oscilloscope where can i get it please give a link
Good day madam pls make video for gold finder, only gold detect pls
Boa tarde amigo, por gentileza vc poderia me mandar os nomes dos componentes que faz esse aparelho sou inscrito no seu canal um line ai amigo.
Why you not use JLC PCB???????
What parts are used to make the device? Can you name them for me? Thank you
what are the capacitor ia cat see ciler
What is the inductance of the coil? Mine is 273 micro henry but I can't get it to work like yours. The sound is way too soft. I am also using a 2N3904 or a BC547 transistor because I don't have a 2N5551.
do you know what are the capa citor? i maked it it does not work
Can you list the name of elements and chips
C4 is wrong? it does not follow o diagram shematic in the pcb...it is in the base to the gnd? i dont understood this part...
Plz give me a circuit of a simple 5w adopter 5v 2a
Capacitors value please especially c4
Unfortunately in my country similar devices are used by thieves to find and steal gold from the houses, is there any way to defeat this?
silver foil. mu metal shield
What program is used to open the file?
Good job...
Can you make a homemade voltmeter for testing voltage upto 30volts
The answer is yes but why?
@@kensmith5694 I have a machine in which only 14 volt dc is required so I need a voltmeter which can measure upto 30 volt
@@kensmith5694 can you provide me circuit of that voltmeter, I will make it...
@@ho0k17
For about $6 US, you can buy a DVM that is good enough. The parts cost for something you can make is more than this.
@@kensmith5694 ok
Witam z Polski jakie parametry cewki ile zwoi pozdrawiam
Gimana cara mendapatkan PCB,dan wirring diagram
i cant see resistors numbers?
How to make 0 C to 100 C .thermostat with adjustable hysteresis.without any microcontroller ic...use 10k ntc....your circuit desgine...please..
Please make it from 555 timer
Give me a its circuit diagram and its all components details with its exact values..
Que voz bonita
Can you give me the circuit diagram?
Please sow how to asemble
air hot heat gun
i could not make it dose not work
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مجودين بالفيديو
6:45 Choose the right answer:
a) a boy with a girl's voice
b) a girl with a hairy arm
it took you 4 minutes to get to the point of the video.
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