Noise on 45W CO2 laser

Results 1 to 2 of 2

Thread: Noise on 45W CO2 laser

  1. #1
    Member
    Join Date
    Oct 2007
    Location
    france
    Posts
    13
    Downloads
    0
    Uploads
    0

    Default Noise on 45W CO2 laser

    Hi,

    I bought a K40 which arrived with a broken tube. I ordered a PST C45 tube (850mm, sold under Cloudray brand). The coolant is demineralized water (no specification on purity,bought in surpermarket,sold to refill car batteries and make vapor with cloth irons).

    The day when I installed the laser and the next day, when I tried the "laser test" button to create short pulses (for laser alignment), I got some noise and a purple light, more noticeable with higher current (on this video,I used about 3mA, 5mA and 10mA) :



    Then this morning, I wanted to remake the same video with the exhaust fan turned of and moving the microphone from the laser to the PSU to try to understand the problem,and I got very different result (5mA, 10mA and 18mA) :



    I also have a video from two days ago (the day when I installed everything) where the 3mA pulse looked nice like this morning video, and the 6mA pulse looked unstable, dimm and was noisy like the first one :



    The only difference I can think of are:
    - Variation on the output of the wall power outlet ( do not have the more stable current here)
    - Dissolved gas in the water that may have went out (this morning, I saw bubbles in the hosing that where not there yesterday and which looked like the bubble on the side of a sparkling water bottle)
    - The disconnected 24V fan (I don't think that's the problem )

    Any idea about what happens, and tests or solutions I should try ?

    Thanks,
    frs.

    Similar Threads:


  2. #2
    Member
    Join Date
    Oct 2007
    Location
    france
    Posts
    13
    Downloads
    0
    Uploads
    0

    Default Re: Noise on 45W CO2 laser

    I just made another test, the noise is back

    Aslo, is it normal that the anode des only 3/4 of the perimeter and not all ?
    Noise on 45W CO2 laser-img_20210131_165004-jpg



Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

Noise on 45W CO2 laser

Noise on 45W CO2 laser