There are two types of Prescale: the two-sheet type and the mono-sheet type. The two-sheet type is composed of two films of which are respectively coated with color-forming material and color-developing material. This type is used by placing the sides coated with the chemical agents over each other. The mono-sheet type is a film with a single base film with a coating of color-forming material and developer.
The microcapsules in the color-forming layer are broken by pressure, and the colorless dye is absorbed into the developer, causing a chemical reaction to produce a red color. The microcapsules containing the color-forming material are adjusted to varying sizes and strengths, and is coated uniformly, producing a color density that corresponds to the amount of pressure.
By checking the standard chart, the pressure value can be confirmed visually.
- * The parts represented by the dotted lines may exceed the allowable error range, so it should only be used as a reference.
- * Prescale is used by selecting curves A, B, or C depending on the temperature and humidity conditions.
- * The measured pressure reaching time for continuous pressure of Ultra extreme low pressure (5LW), extreme low pressure (4LW), and ultra extreme low pressure (LLLW) is 5 seconds, and the measurement maintenance time is 2 minutes.
- * Super high pressure (HHS) is only for continuous pressure.
Cut the Prescale or Prescale Sheets into the shapes needed for measurement.
Insert the Prescale between the surfaces to be measured.
Apply normal operating pressure.
Remove the Prescale.
You can now see the pressure and its distribution.
Use the special scanner to scan the colorized Prescale sheet.
By selecting measurement conditions, you can take measurements of the pressure values of entire objects, partial sections, and precise points. The data export function can be used to export data in Excel format, and three-dimensional image analysis can be performed by using 3D analysis software.
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