flc 100

[TANCE]

flc 100 Who has the circuit

[TANCE]

FLC-100--Beg you to help, I cannot buy

[Orbit]

I've got to sell !

[TANCE]

How to transfer the money

[bernte_one]

hello Orbit,

how much is one or two sensors with shipping to germany

[Orbit]

http://www.stefan-mayer.com/en/produ...r-flc-100.html

[bernte_one]

yes i know
but one or two pieces are 79€ per pieces, and not to private persons
ask asked him and he would sell but these little part count on the board says not 79€ to me
so it only for sensors
you also have to develope a differential amplifier to work with them

as i had in mind you know the layout and the parts installed?

the ferrit core is no problem for me i got a source for 16mm diameter ferrite core
so i could improove this thing a little

[Orbit]

they sold me,I had no problems !

[seven]

Hi everyone, I'm gonna find out what the source schematic flc100?

[bernte_one]

the schematic seems not very complicated the critical point is to get the right core material for the ferrite core coil and also to tune this coil by exactly number of turn to the best frequncy for this circuit, if you will start to rebuild you will see very soon that is is much easier to buy one

[drlogin]

any body have survey example plus software of survey

[Davor]

I was browsing through my old posts, and found a nice old topic that stopped abruptly, but may prove useful in DIY of magnetometer probes, DIY Self Oscillating Fluxgate.

Finding metglass is actually very easy, as they are included in many anti-theft tags, but winding a consistent driving coils is a bit more tricky. If anyone may suggest an easily obtainable reed relay driver coil at ~250ohm we all could make nice sensors on our own.

I was thinking of poking into a DIL reed relay to do that. I have no idea what to expect to see inside. They are not too expensive, and they seem to be fairly consistent between the two of the same batch. Even if one is a bit lower in inductance, a few windings could be added around a whole contraption to trim it into equilibrium with its peer. Heck, even FLC-s do that.

[Altra]

Since that original post, I ran across this detailed video of a metglass magnetometer using a NE555

https://www.youtube.com/watch?v=dP84iJlQCDI

[Davor]

Brilliant! 555 simply can't fail to oscillate. I like the direct winding of the wire on a security tag. It is messy, but if you need only a pair of sensors, and not a large production, that's the way to go