Playing with an idea

Discussion in 'Miscellany' started by cwilt, Jun 8, 2007.

  1. cwilt

    cwilt

    Apr 24, 2005
    Denver, CO
    I have been playing with light painting for product images. Here are a few from todays practice.

    Triax Laser
    [​IMG]

    Stratus GPS receiver.
    [​IMG]

    SCT6 Construction Total Station
    [​IMG]
     
  2. BigPixel

    BigPixel Guest

    In shots like #1 it would be helpful if the lasar beams were square and level.
     
  3. cwilt

    cwilt

    Apr 24, 2005
    Denver, CO
    If you look at the lcd it says -2% for X. One of the features of this model is to adjust grade at the level. It was intentional and not an error.

    That is not a PS'd laser beam. Its the real deal.
     
  4. Nice work.

    So what do these interesting looking devices do?
     
  5. Interesting. Also am curious as to the uses for these devices.
     
  6. cwilt

    cwilt

    Apr 24, 2005
    Denver, CO
    The laser is used for leveling or setting grade, such as concrete floors, asphalt, and dirt work. That laser normally spins at about 300rpm. There is a sensor that clamps to a measuring rod which you can move up and down and gives a continuos tone when your in the middle of the beam. Works to about a 1000 foot radius with an accuracy of 1/16" at 100 ft. It can also be used to control machinery to hit a certain depth or height.

    The little GPS receiver is one of three in the package. You would want to set 2 of them up on known points collecting info. While the other is used as a rover and you walk around and setup on other points and collect info for at least 15 seconds. This kit uses a PDA to download data from the receivers. Back at the office the info from all three units is used get accuracy to about 5cm. This is an entry-level system into the GPS world.

    The total station is used on job sites to layout floor plans, or stake out as we call it. It uses a laser and measures the time of flight between the instrument and a prism, or prisms for really long shots, to calculate distance. It can measure to over 10,000 with a triple prism setup. Several models are made with accuracy from 1 second to 5. Five is the most common.
     
  7. Thanks, very interesting
     
  8. cwilt

    cwilt

    Apr 24, 2005
    Denver, CO
    Your welcome Dave. That total station is entry level. The higher end units can measure to 20,000 feet. At that point the curvature of the earth must be included in the calculations along with weather conditions. Some of the newer models can measure distance without a reflector to about 500 ft, as well.

    The new kid on the block is laser scanning. It uses similar technology but it can make a high resolution scan to make a picture, so to speak.

    Some day I need to do a photographic study of surveying.
     
  9. Very nice results with light painting.

    And very interesting devices. Thanks for the explanation.
     
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