WY2855 dielectric constant and dielectric loss measuring equipment consists of a Q-meter, test fixture, and standard dielectric samples. So the high frequency dielectric loss angle tangent （tanδ）and dielectric constant（ε） of the insulating material can be measured. It meets Chinese standard GB/T1409-2006, GB/T1693-2007 andAmericastandard ASTM D150.

WY2855 dielectric constant and dielectric loss measuring equipment operating frequency range is from 100kHz～100MHz. So the change of the sample’s high frequency dielectric loss angle tangent（tanδ） and dielectric constant（ε） can be measured within the operating frequency range.

The test fixture is made by flat capacitors consist of two electrodes. The stuff to be tested is generally clamp by the plate capacitor. It should use Q meter as indicator instrument. To measure relative dielectric constant and loss angle tangent of insulation material, first we use the device to get the result from Q meter and tuned capacitor. The procedures of that is to measure the difference of that the one been put in the plate capacitor and the one in the outside. If you combine WY2852A or WY2853A, the built-in procedure can measure the dielectric constant and dielectric loss angle tangent automatically.

1 Features:

1.1 The technique our company innovated in holding Q automatically enables Q resolution to be 0.1Q and tanδ resolution to be 0.00005.

1.2 It can measure the change of the solid insulating material ‘s relative dielectric constant（ε）and dielectric loss angle tangent (tanδ) in 100kHz～100MHz.

1.3 Tuning circuit residual inductance being 8nH (WY2853A) to ensure the error of ε and tanδ in 100MHz can be less.

1.4 TFT color screen menu displays multiple parameter: ε,δ,Q, measuring frequency and tuning capacitance.

1.5 Q measuring range can be controlled automatically and manually. Adjustable capacitance range:14～230pF(WY2853A) Resolution:0.033pF

1.6 The test equipment meet Chinese standard GB/T1409-2006, GB/T1693-2007 and Americastandard ASTM D150.

2 Specification:

2.1 Character of ε and tanδ

2.1.1 The measurement about the change of the solid insulating material‘s εand tanδ in         100kHz～100MHz.

2.1.2 ε and tanδ measuring range :

           ε :1～50 , tanδ:0.1～0.00005

2.1.3 ε and tanδ measuring accuracy (1MHz):

          ±2% , tanδ: ±2%±0.00005

2.2 Character of Q meter

The dielectric constant and dielectric loss measuring equipment that contains WY2852Aor WY2853Adigital Q meter can calculate automatically and display dielectric constant (ε) and dielectric loss angle tangent ( tanδ).

2.3 Dielectric constant and loss measuring fixture

2.3.1 Diameter of plane electrode:

WY916D: Φ38mm or Φ50mm

2.3.2 Space, adjustable range and resolution of plate capacitor:

WY916D:0～8mm ±0.001mm

WY915: 0～8mm±0.01mm

2.3.3 Parallelism of the plat capacitor two-electrode:

<0.02mm

2.3.4 Fixture Space length:25mm±0.1mm

2.3.5 Fixture Loss angle tangent: 2.5×10^_4(1MHz)

2.4 Inductor

As the test frequency required, you should fit different inductors. For instance, you should use 100μH or 250μH inductor at 1MHz , and you should use 0.1μH inductor at 50MHz.

2.5 High frequency dielectric samples

The verification department provides high frequency dielectric loss measuring meter with high frequency standard dielectric samples in the present high frequency dielectric material verification system. The samples are made of artificial sapphire, quartz glass, alumina ceramic, PTFE, epoxy material and so on. The diameter samples are Φ38mm or Φ50mm and 1～2mm thick.

You can order it as needed in order to ensure the repeatability and accuracy of the test inductors.