A patent to detect substances by infrared like Esteban used.

[humhum]

Some versions of Alonso's IR LRL use photoresistor in place of phototransistor.
The results are similar.... all detects the trees shandow

Yes Master , result is similar , because may be receive in same ''nm'',

Question:
When receive with IR sensor (in this time ) Does need any RF coil Tx Stimulator near IR
sensor ? Because Alonso IR Sensor is in center of Coil , or this coil is Receiver instead Tx.

[humhum]

The first photo shows the central hole where the infrared is.

.

[Geo]

Yes Master , result is similar , because may be receive in same ''nm'',

Question:
When receive with IR sensor (in this time ) Does need any RF coil Tx Stimulator near IR
sensor ? Because Alonso IR Sensor is in center of Coil , or this coil is Receiver instead Tx.

A coil actuator ... I do not think so, but maybe a broadcast is good. Alonso does not use the IR sensor in the center of the coil in all versions.

[Dubulumach]

Hello friends,
I already had the opportunity to get this yellow pistol manufactured by Alonso, which Esteban posted the photo on that topic.
I made a copy of it for myself, with a fiberglass PCB and quality original components, and it has excellent detection, very accurate and works very well.
.

Hey gaucho1961!

Does there exist any stimulator of yellow lrl?
Magnetic type or IR type?

Regards

[Geo]

A coil actuator ... I do not think so, but maybe a broadcast is good. Alonso does not use the IR sensor in the center of the coil in all versions.

Sorry for mistake... i mean coil stimulator!!!

[Geo]

Hey gaucho1961!

Does there exist any stimulator of yellow lrl?
Magnetic type or IR type?

Regards

At most cases Alonso was use a magnetic receiver together with the optical one.

[Geo]

The first photo shows the central hole where the infrared is.

The hole is very large.
Make it smaller...

[Geo]

Look here the hole of Alonso's ir receiver

[humhum]

At most cases Alonso was use a magnetic receiver together with the optical one.

Ok Master , correct system is IR optical receiver + Coil Receiver .

[Geo]

There is not correct....or wrong
With two sensors (ir + coil) you have a double detector with more posibilities

[zakari]

HI

[gaucho1961]

Good night to all friends! Inside the detector head there is a coil equal to the DCH, with no surprises of finding something different. The Infrared model used is the L14G2 TO-18 DIP3 Silicon phototransistor. I already had the FG-80, FG-90 and all of them the infrared scheme only brought me false signals, because when pointing in the direction where there was sun and then towards a shade of a tree, the infrared already gave a sign, this change of infrared visual frequency caused him to trigger the detector. I was able to resolve and eliminate these false signals by placing a piece of electrical tape over the infrared. These infrared do not have a filtering system, and any change in the visual spectrum it triggers, to be efficient, it would have to have a filtering system for about 700 to 740 nanometers, this visual frequency would be within what we want to use in our detectors.

[Geo]

FG80 and FG90 don't receive IR signals. They only transmit an IR signal by a Led.
Are you sure that the prototype yellow PD had the L14G2 as IR sensor and not the FPT100???

[kostas87]

I haven't the same problem and tried to do some stuff..I needed base LED direction ,and not outside from the box . I Place it inside to the box with a distance 1cm from one small hole .Even the distance from the small hole into the box was critical..

[zakari]

Hi
Geo fg90 has two infrared led one of them is front of the the box and another is inside ionic chamber
Gaucho 1961 the cover of the ionic chamber operate as the infrared filter
Best regard
Zakari