32 | Keysight | E4991B Impedance Analyzer - Data Sheet
Examples of Calculated Permittivity Measurement Accuracy
Figure 39. Dielectric loss tangent (tand) accuracy vs. frequency
Δ['r
( [' )
r
(at t = 0.3 mm, typical)1
Figure 36. Permittivity accuracy
vs. frequency, (at t = 0.3 mm typical)
Figure 40. Dielectric loss tangent (tand) accuracy vs. frequency
(at t = 1 mm, typical)1
Δ['r
([' )
r
Figure 37. Permittivity accuracy
vs. frequency, (at t = 1 mm typical)
Δ['r
( [' )
r
Figure 38. Permittivity accuracy
vs. frequency, (at t = 3 mm typical)
Figure 41. Dielectric loss tangent (tand) accuracy vs. frequency
(at t = 3 mm, typical)1
1. The typical accuracy of tanδ is defined as Ea + Eb; refer to “Typical
permittivity measurement accuracy” on page 28.
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