The Modulus Curve was Very Noisy

Connect the Vector to the Vector Interface app to inspect the cause.

Solutions

1. Check the markings have been applied correctly.

   Poor markings can introduce noise, especially if the specimen has not been correctly prepared. Ensure the specimen is free from grease or dust before marking.

   See section on Specimen Marking for more information.

2. Check markings are suitable.

   When measuring transverse strain, rings are recommened for flat specimens.

   See section on Specimen Marking for more information.

3. Check the output scaling is suitable for the material and test.

   Vector outputs the measurement as an analogue voltage via a BNC connection. Check the following attributes:

   • Check the scale of the Vector analogue output matches the signal input of the test frame.

   • Ensure the range does not vastly exceed the expected minimum and maximum strain for the intended material and test.

   • Ensure the range includes a 20% margin on both the maximum and minimum.

4. Inspect the History page to view any scanning and measurement warnings.

   Warning indicators highlight issues with the setup.

   The history page is found on the Vector Interface app. See section Measurement History.

   Warning indicators are visible live during Scanning on the Vector Interface app. See section Scanning Overlays and Dashboard.

5. Allow 20 minutes for the Vector to reach stable and valid operating temperature.

   Vector is calibrated to measure in stable laboratory conditions, within 18-22°C.

   Measurements undertaken recently after startup can exhibit noise or drift.

   Dissimilar storage conditions can effect this warm-up period.