Digital Radiography: A Brief History
Radiography has passed through three major stages of development: Film-Based, Computed Radiography (CR) and Digital Radiography (DR).
Radiography originally used film as the medium for the X-ray image. The film had to be developed and read on a light box. Later, Computed Radiography used image plates that were first scanned to a computer and then analyzed. Digital Radiography bypasses all these techniques. The digital detector (typically a flat panel detector [FPD] or linear diode array [LDA]) is connected to a computer where the image is displayed without the need for peripheral devices.
Digital Radiography: Multiple Advantages
Digital Radiography brings with it numerous advantages. It provides instant image preview with real-time image processing and enhancement, wider dynamic range with greater tolerance for over or under exposure, and does not require scanning or expensive film. DR also:
Operates several times faster than film by providing lower exposure lengths
Reduces the number of shots required due to sensitivity of the device by capturing a much greater range of thicknesses on a single shot
See more detail through higher contrast resolutions. VJT uses 16 bit image acquisition to provide 65,000 gray levels, as opposed to 256 with traditional film
Reduces staffing needs by automating and simplifying processes and defect recognition
Image Stitching with overlap for wide and large parts
Pioneers in Digital Radiography
DR shows wider latitude in a single image
VJT has provided DR solutions longer and has more digital integrations than any other company in the world. But we see our leadership as only a beginning.
Our X-ray 2.0 offering, built around our innovative and proprietary Vi3 software, reduces typical inspection times by up to 50-percent. Built with powerful image processing features such as ADR (Automatic Defect Recognition), our inspection software allows our customers to evaluate analog and digital radiographic data without operator intervention and require fewer human capital hours.
Calculate the ROI of DR
Even as DR becomes more prevalent, the misconception that it has higher upfront costs remains. In reality, DR is a much more economical technology. The following represents a return-on-investment (ROI) calculation for an actual customer (numbers have been rounded, calculated over a three year period for GAP depreciation):
|$9,000||DR Upgrade Cost
(includes annual service maintenance)
|Inspection Labor Cost/Month||$21,000||Inspection Labor Cost/Month||$500|
|Total Inspection Annual Cost||$360,000||Total Inspection Annual Cost||$40,133|
|Three Year Cost||$1,080,000||Three Year Cost||$120,400|
Annual Savings: $319,867
Entire Upgrade Paid Off in Less Than 3.9 months
ROI for One Year: 312%
The more you learn about DR, the more of its advantages you’ll discover. When you’re ready to harness its power for your company, contact VJ Technologies.