Hi,
how is your experience with such a crystal module?
Is the alignment important? I think the polarization of the diode is not unimportant. Does anyone know how to align the crystals?
Greetings
Hello,
i have bought a 520nm PL520 on ebay and i dont know .. is it the 30mW(PL520_B1_2) or 50mW(PL520_B1) version.
What is the differenze(case ? bonding ?), how can i find out, what type i got ?
Greetings
hi,
thanks for the response. This was a project for fun only. A verry low cost engraver, fast an cheap build (LD ~ 2€, Driver LM358 based, arduino clone 2€).
i use a big and a fast CNC Engraver with a ~2W Laser for Wood Engraving (Pens and small wooden cans).
China seller offers CDR-based...
i know .. but the connection is ok - and this circuit is reverse polarity protected (D2) ;-)
the RS232 connection will not be established. i have tried this with a FT232RL (works on my other Ophir Head). No Communication .. only a unaccurate analog output
measurement and phone with ophir support helps me a little (unofficially :-D)
the only thing that is the same on all custom sensors with 6pin molex (95%)
1 - custom
2 - GND
3 - Vin (0.5 means that the sensor has clibrated 0.5V/1W - for 20W we need 10V + 2V => 12V, for 2W it is working with...
ophir tells me .. the sensor with this serial number is a customer builded sensor (OEM). It is not a standard sensor. The RS232 protocol is unknown (no documentated ophir std protocol).
No Information, No datasheet, No support (only for the first customer, but not me)
With a own (std-)...
hello,
i have bought a used ophir 20C-UAS, but the sensor does not work.
Its a 6-pin Molex connected module. I have contacted Ophir and they tells me, this is a NDA Sensor .. i cant get any informations about the interface or Analog-Output.
i think .. this Sensor is damaged, but the...
hi,
i have posted this diagram to help anyone. It is was measured by myself with my Ophir LPM. Informations for this laser diode are very rare and a i did not found a genuine datasheet.
Greetings