Uncertainty Tables for Lossy Liquid and Lossy Solid Measurements
The tables below provide material and frequency-specific uncertainties (k=2) for dielectric measurements with DAK and DAK-TL2 probes, respectively. Listed values reflect the measurement capability for each system when measuring the indicated materials and include all uncertainties related to
- the probe system
- possible design-specific systematic errors
- the calibration
- temperature differences during calibration and measurements
- VNA noise
- thickness measurement (for solids)
DAK Uncertainty Table for Lossy Liquid Measurements
|
Frequency (MHz)
|
Δε’
|
Δσ
|
|
4
|
5.3%
|
2.9%
|
|
20
|
2.2%
|
3.0%
|
|
30
|
1.9%
|
2.4%
|
|
50
|
1.8%
|
2.4%
|
|
65
|
1.8%
|
2.4%
|
|
100
|
1.7%
|
2.4%
|
|
300
|
1.7%
|
2.5%
|
|
500
|
1.7%
|
2.5%
|
|
1000
|
1.7%
|
2.9%
|
|
2000
|
1.7%
|
3.0%
|
|
3000
|
1.7%
|
3.2%
|
|
5000
|
1.8%
|
2.9%
|
|
6000
|
1.9%
|
3.0%
|
|
10000
|
2.0%
|
3.0%
|
|
15000
|
2.2%
|
2.9%
|
|
20000
|
2.8%
|
3.3%
|
|
30000
|
3.1%
|
3.3%
|
|
40000
|
3.3%
|
3.3%
|
|
50000
|
3.9%
|
3.7%
|
|
60000
|
4.3%
|
3.9%
|
|
67000
|
4.5%
|
4.0%
|
|
DAK-TL2 Uncertainty Table for Lossy Solid Measurements
|
Frequency (MHz)
|
Δε’
|
Δσ
|
|
4
|
6.4%
|
3.9%
|
|
20
|
4.3%
|
3.4%
|
|
30
|
4.0%
|
3.4%
|
|
50
|
2.5%
|
3.4%
|
|
65
|
2.5%
|
3.4%
|
|
100
|
2.5%
|
3.4%
|
|
300
|
2.9%
|
3.4%
|
|
500
|
2.7%
|
3.4%
|
|
1000
|
2.7%
|
5.8%
|
|
2000
|
2.8%
|
5.8%
|
|
3000
|
2.8%
|
3.8%
|
|
5000
|
2.8%
|
3.9%
|
|
6000
|
2.8%
|
4.0%
|
|
10000
|
3.3%
|
4.0%
|
|
15000
|
3.4%
|
3.9%
|
|
20000
|
3.6%
|
4.0%
|
|
30000
|
3.6%
|
3.7%
|
|
40000
|
3.9%
|
3.9%
|
|
50000
|
4.7%
|
5.0%
|
|
60000
|
5.1%
|
3.9%
|
|
67000
|
5.1%
|
4.6%
|
|
* The Uncertainty values can be linearly interpolated between the listed frequency points.
