Electrical Testing

Dielectric Constant and Loss Tester

The STD-B measures dielectric loss tangent (tanδ) and dielectric constant (ε) of insulating materials with a high-frequency Q meter and S916 fixture. The instrument references GB/T 1409-2006, GB/T 1693-2007, ASTM D150, and IEC 60250 and provides an optional liquid cup for liquid materials.

Model
STD-B
Category
Electrical Testing
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Product description

Product Description

The STD-B consists of a high-frequency Q meter, S916 fixture, data acquisition and automatic tanδ measurement controls, an LKI-1 inductor set, and an optional liquid cup. It measures dielectric loss tangent (tanδ) and dielectric constant (ε) of insulating materials according to GB/T 1409-2006, GB/T 1693-2007, ASTM D150, and IEC 60250.

Specifications

Technical Specifications

ParameterSpecification
Main UnitSTD-B high frequency Q meter
Signal source rangeDDS digital-synthesized signal, 10 kHz–110 MHz
Signal source frequency coverage ratio11,000:1
Q measurement range1–1000; automatic/manual range selection
Q measurement resolution0.1; 4 significant figures
Sampling precision11 bits
Inductance measurement range1 nH–8.4 H; resolution 0.1 nH
Tuning capacitorMain capacitor 30–540 pF
Direct capacitance measurement range1 pF–2.5 μF
Resonance-point searchAutomatic scan
Preset Q-qualified range5–1000 with audiovisual prompt
Q-range switchingAutomatic/manual
LCD display parametersF, L, C, Q, Lt, Ct, etc.
Residual-inductance deductionAutomatic
Direct large-capacitance measurementUp to 2.5 μF
Dielectric-loss tangent precision0.0003
Minimum dielectric loss0.0001
Material test thickness0.1–10 mm
Fixture loss tangent≤4 × 10⁻⁴ at 1 MHz
Fixture reference frequency1 MHz
Electrode size≥38 mm; adjustable spacing ≥15 mm
Fixture plug spacing38 mm ±0.01 mm
Micrometer-rod resolution≤0.001 mm
Liquid cup48 mm diameter; 7 mm depth
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