STEP-UP™ Program White Paper (Page: 1, 2, 3) The Echotopography (ET) Audit If the objective of the anilox evaluation is to determine the exact BCM (or volume), tools other than the microscope should be used. The ET system scans the anilox roll to produce accurate and repeatable three-dimensional profiles of anilox cells. A high-speed computer program analyzes thousands of data points and produces dimensional and volume measurements within 10 nanometers accuracy. The ET system removes human elements and assumptions from the measurements. This advanced technology allows Harper Corporation to maintain the tightest manufacturing tolerances in the industry.
3-D Profile of Anilox Cells Produced by Echotopography
Advantages of the ET System
Disadvantages of the ET System
When a Harper technician travels to a customer's facility to perform an ET Audit, the technician must set the system up and measure each roll in the customer’s facility. Additionally, he or she also takes an Echochek impression of each roll for visual reference. The following factors make it difficult to use the ET system in a customer’s facility:
A controlled environment is critical for accurate results, and unfortunately this is not always feasible in a customer’s facility. These factors, along with the equipment condition, can create inaccurate data and cause the measurement of the anilox roll to be incorrect. Much better results can be obtained by utilizing the ET system in the controlled environment of the Harper technical lab, but we cannot ask our customers to ship all of their rolls to us for evaluation. Comparison of Echochek vs. ET System
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