Dielectric Characteristics

This test method is used to calculate dielectric characteristics.

 

Dielektrische Messung

 

Test specimen Usually Ø 80 mm, 2 mm thick
Test voltage 0.1 VAC to 1000 VAC (frequency-dependent)
Test frequency 10 Hz to 1 MHz
Capacitance 10 pF to 1 mF
Loss factor 0,0001 to 1,0 (frequency-dependent)
Temperature range 23°C to 200°C

 

Results of the test method
  • The dielectric constant εr is an unknown proportional number. It indicates the number of times the capacitance of a given capacitor is multiplied if an insulating material is introduced into it instead of vacuum.
  • The loss factor tan δ is the tangent of the complementary angle to the phase angle φ at 90°. It represents a measure of the energy absorbed by the insulating material in the alternating field.