FT labs detectors

[barry wilkins]

Does anybody know how these probes work ?
They plug in to a audio socket on a phone ,and software drives them.
So how does this work ?

Barry Wilkins

[budm]

Re: FT labs detectors

Are you talking about this thing?
http://www.ebay.com/itm/Smart-Geiger...-/291401260715

[stj]

Re: FT labs detectors

radiation hits the sensor creating a pulse, the sotfware counts the pulses per second - that's all.
it's probably junk in something that small.

btw, there was a guy who used the cmos camera as a sensor so you only needed the software
you can probably use these things to know when not to aproach something, but you wont get useable numeric readings from them.

[barry wilkins]

Re: FT labs detectors

Hi yes it is the one for radiation I was looking at.
As I understand the jack plug has 4 poles
The barrel is the sound in
The first ring is ground
The next ring and the tip are the two stereo outputs.
I am hoping the device powers the device using the stereo connections and uses the audio input for the signal from the detector module.

Barry Wilkins

[stj]

Re: FT labs detectors

probably, by generating a high volume waveform on the audio that can be rectified & smoothed at the device.
it wont do the amplifier much good though even if it is a clever trick!